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BoP Lab / Classes / FE2

FE2 vs SM vs GT2 vs EP pace at every track

Lap times across years say as much about the weather as the class. % of FE2 is each class's best lap as a share of FE2's on the same day, so the conditions drop out: 100% is level, less is quicker, and a move in it is the class getting faster or slower against the field.

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB-SpecvsEP×FAFCFE2×FFFPFVFXGT1vsGT2×GTXHPPP2vsSM×SMXSRF3STLSTUT1T2T3T4Show 51 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FE2 100.0% of FE2 Flinn Lazier, Sonoma Raceway Runoffs 2018 race · SM 105.3% of FE2 Travis Wiley, Virginia International Raceway Runoffs 2022 race · GT2 85.6% of FE2 Daniel Bender, Virginia International Raceway Runoffs 2022 race · EP 108.4% of FE2 Jesse Prather, Virginia International Raceway Runoffs 2019 race

1:402:002:202:4035 rule changes between Runoffs 2018 and Runoffs 201935 ▾44 rule changes between Runoffs 2019 and Runoffs 202044 ▾31 rule changes between Runoffs 2020 and Runoffs 202131 ▾36 rule changes between Runoffs 2021 and Runoffs 202236 ▾33 rule changes between Runoffs 2022 and Runoffs 202333 ▾31 rule changes between Runoffs 2023 and Runoffs 202431 ▾26 rule changes between Runoffs 2024 and Runoffs 202526 ▾37 rule changes between Runoffs 2025 and Runoffs 202637 ▾FE2 race best at Runoffs 2018: 1:35.563 (Flinn Lazier)FE2 race best at Runoffs 2019: 1:52.154 (Liam Snyder)FE2 race best at Runoffs 2020: 2:13.271 (Owen McAllister)FE2 race best at Runoffs 2021: 1:36.655 (Max Grau)FE2 race best at Runoffs 2022: 2:12.045 (Jason Conzo)FE2 race best at Runoffs 2023: 1:51.098 (Franklin Futrelle)FE2 race best at Runoffs 2024: 2:12.748 (Porter Aiken)FE2 race best at Runoffs 2025: 2:13.339 (Franklin Futrelle)FE2 race best at Runoffs 2026: 2:11.881 (Franklin Futrelle)FE2 qualifying best at Runoffs 2018: 1:35.040 (Flinn Lazier)FE2 qualifying best at Runoffs 2019: 1:51.062 (Liam Snyder)FE2 qualifying best at Runoffs 2020: 2:12.806 (Scott Rettich)FE2 qualifying best at Runoffs 2021: 1:36.395 (Max Grau)FE2 qualifying best at Runoffs 2022: 1:50.853 (Charles Russell Turner)FE2 qualifying best at Runoffs 2023: 1:50.665 (Charles Russell Turner)FE2 qualifying best at Runoffs 2024: 2:11.506 (Porter Aiken)FE2 qualifying best at Runoffs 2025: 2:12.475 (Franklin Futrelle)FE2 qualifying best at Runoffs 2026: 2:12.326 (Franklin Futrelle)SM race best at Runoffs 2015: 2:24.067 (Todd Lamb)SM race best at Runoffs 2016: 1:40.764 (Michael Carter)SM race best at Runoffs 2017: 1:59.100 (Michael Gagliardo)SM race best at Runoffs 2018: 1:55.278 (Michael Carter)SM race best at Runoffs 2019: 2:16.459 (Elivan Goulart)SM race best at Runoffs 2020: 2:43.748 (Preston Pardus)SM race best at Runoffs 2021: 1:58.837 (Brian Henderson)SM race best at Runoffs 2022: 2:19.107 (Travis Wiley)SM race best at Runoffs 2023: 2:16.229 (Julian DaCosta)SM race best at Runoffs 2024: 2:41.486 (Brett Kowalski)SM race best at Runoffs 2025: 2:44.430 (Kyle Greenhill)SM race best at Runoffs 2026: 2:42.725 (Francisco Barroso)SM qualifying best at Runoffs 2015: 2:18.661 (Andrew Carbonell)SM qualifying best at Runoffs 2016: 1:40.514 (Justin Hille)SM qualifying best at Runoffs 2017: 1:58.306 (Chris Haldeman)SM qualifying best at Runoffs 2018: 1:54.355 (Ken Sutherland)SM qualifying best at Runoffs 2019: 2:14.552 (Todd Buras)SM qualifying best at Runoffs 2020: 2:42.209 (Kyle Greenhill)SM qualifying best at Runoffs 2021: 1:57.695 (Brian Henderson)SM qualifying best at Runoffs 2022: 2:14.664 (Danny Steyn)SM qualifying best at Runoffs 2023: 2:14.986 (Danny Steyn)SM qualifying best at Runoffs 2024: 2:41.106 (Ethan Goulart)SM qualifying best at Runoffs 2025: 2:43.111 (Bobby Gossett)SM qualifying best at Runoffs 2026: 2:42.173 (Brett Kowalski)GT2 race best at Runoffs 2015: 1:53.543 (Jordan Bupp)GT2 race best at Runoffs 2016: 1:26.847 (Andrew Aquilante)GT2 race best at Runoffs 2017: 1:40.976 (Andrew Aquilante)GT2 race best at Runoffs 2018: 1:38.524 (R Spencer Trenery)GT2 race best at Runoffs 2019: 1:52.475 (Andrew Aquilante)GT2 race best at Runoffs 2020: 2:14.279 (Andrew Aquilante)GT2 race best at Runoffs 2021: 2:03.513 (Tim Kezman)GT2 race best at Runoffs 2022: 1:53.048 (Daniel Bender)GT2 race best at Runoffs 2023: 1:52.865 (Jared Odrick)GT2 race best at Runoffs 2024: 2:13.311 (John Atwell)GT2 race best at Runoffs 2025: 2:13.447 (John Atwell)GT2 race best at Runoffs 2026: 2:10.650 (John Atwell)GT2 qualifying best at Runoffs 2015: 1:53.652 (Jordan Bupp)Off the chart: GT2 qualifying best at Runoffs 2016: 1:25.405 (Andrew Aquilante)GT2 qualifying best at Runoffs 2017: 1:39.919 (Andrew Aquilante)GT2 qualifying best at Runoffs 2018: 1:37.203 (Andrew Aquilante)GT2 qualifying best at Runoffs 2019: 1:50.182 (Andrew Aquilante)GT2 qualifying best at Runoffs 2020: 2:12.298 (Andrew Aquilante)GT2 qualifying best at Runoffs 2021: 1:39.665 (Andrew Aquilante)GT2 qualifying best at Runoffs 2022: 1:51.086 (Andrew Aquilante)GT2 qualifying best at Runoffs 2023: 1:52.004 (Barry Boes)GT2 qualifying best at Runoffs 2024: 2:11.860 (Charlie Peter)GT2 qualifying best at Runoffs 2025: 2:11.807 (Brad McAllister)GT2 qualifying best at Runoffs 2026: 2:09.634 (John Atwell)EP race best at Runoffs 2015: 2:05.109 (Kip Van Steenburg)EP race best at Runoffs 2016: 1:34.266 (Michael Galati)EP race best at Runoffs 2017: 1:50.396 (Matt Reynolds)EP race best at Runoffs 2018: 1:46.518 (Glen McCready)EP race best at Runoffs 2019: 2:01.631 (Jesse Prather)EP race best at Runoffs 2020: 2:29.047 (Jesse Prather)EP race best at Runoffs 2021: 1:49.928 (Jesse Prather)EP race best at Runoffs 2022: 2:30.855 (Jesse Prather)EP race best at Runoffs 2023: 2:04.050 (Greg Ira)EP race best at Runoffs 2024: 2:27.869 (Tyler Ladd)EP race best at Runoffs 2025: 2:28.756 (Tyler Ladd)EP race best at Runoffs 2026: 2:27.869 (Jon Brakke)EP qualifying best at Runoffs 2015: 2:03.794 (Kip Van Steenburg)EP qualifying best at Runoffs 2016: 1:33.847 (Michael Galati)EP qualifying best at Runoffs 2017: 1:49.597 (Matt Reynolds)EP qualifying best at Runoffs 2018: 1:45.828 (Glen McCready)EP qualifying best at Runoffs 2019: 2:00.987 (Jesse Prather)EP qualifying best at Runoffs 2020: 2:27.322 (Jesse Prather)EP qualifying best at Runoffs 2021: 1:48.181 (Jesse Prather)EP qualifying best at Runoffs 2022: 2:02.326 (Jesse Prather)EP qualifying best at Runoffs 2023: 2:03.215 (John Hainsworth)EP qualifying best at Runoffs 2024: 2:26.803 (Tyler Ladd)EP qualifying best at Runoffs 2025: 2:27.293 (Jon Brakke)EP qualifying best at Runoffs 2026: 2:29.239 (Jon Brakke)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
FE2SMGT2EPsolid race · dashed qualifying · slower is lower
100%110%120%35 rule changes between Runoffs 2018 and Runoffs 201935 ▾44 rule changes between Runoffs 2019 and Runoffs 202044 ▾31 rule changes between Runoffs 2020 and Runoffs 202131 ▾36 rule changes between Runoffs 2021 and Runoffs 202236 ▾33 rule changes between Runoffs 2022 and Runoffs 202333 ▾31 rule changes between Runoffs 2023 and Runoffs 202431 ▾26 rule changes between Runoffs 2024 and Runoffs 202526 ▾37 rule changes between Runoffs 2025 and Runoffs 202637 ▾FE2 race best at Runoffs 2018: 100.0% of FE2's (Flinn Lazier)FE2 race best at Runoffs 2019: 100.0% of FE2's (Liam Snyder)FE2 race best at Runoffs 2020: 100.0% of FE2's (Owen McAllister)FE2 race best at Runoffs 2021: 100.0% of FE2's (Max Grau)FE2 race best at Runoffs 2022: 100.0% of FE2's (Jason Conzo)FE2 race best at Runoffs 2023: 100.0% of FE2's (Franklin Futrelle)FE2 race best at Runoffs 2024: 100.0% of FE2's (Porter Aiken)FE2 race best at Runoffs 2025: 100.0% of FE2's (Franklin Futrelle)FE2 race best at Runoffs 2026: 100.0% of FE2's (Franklin Futrelle)FE2 qualifying best at Runoffs 2018: 100.0% of FE2's (Flinn Lazier)FE2 qualifying best at Runoffs 2019: 100.0% of FE2's (Liam Snyder)FE2 qualifying best at Runoffs 2020: 100.0% of FE2's (Scott Rettich)FE2 qualifying best at Runoffs 2021: 100.0% of FE2's (Max Grau)FE2 qualifying best at Runoffs 2022: 100.0% of FE2's (Charles Russell Turner)FE2 qualifying best at Runoffs 2023: 100.0% of FE2's (Charles Russell Turner)FE2 qualifying best at Runoffs 2024: 100.0% of FE2's (Porter Aiken)FE2 qualifying best at Runoffs 2025: 100.0% of FE2's (Franklin Futrelle)FE2 qualifying best at Runoffs 2026: 100.0% of FE2's (Franklin Futrelle)SM race best at Runoffs 2018: 120.6% of FE2's (Michael Carter)SM race best at Runoffs 2019: 121.7% of FE2's (Elivan Goulart)SM race best at Runoffs 2020: 122.9% of FE2's (Preston Pardus)SM race best at Runoffs 2021: 122.9% of FE2's (Brian Henderson)SM race best at Runoffs 2022: 105.3% of FE2's (Travis Wiley)SM race best at Runoffs 2023: 122.6% of FE2's (Julian DaCosta)SM race best at Runoffs 2024: 121.6% of FE2's (Brett Kowalski)SM race best at Runoffs 2025: 123.3% of FE2's (Kyle Greenhill)SM race best at Runoffs 2026: 123.4% of FE2's (Francisco Barroso)SM qualifying best at Runoffs 2018: 120.3% of FE2's (Ken Sutherland)SM qualifying best at Runoffs 2019: 121.2% of FE2's (Todd Buras)SM qualifying best at Runoffs 2020: 122.1% of FE2's (Kyle Greenhill)SM qualifying best at Runoffs 2021: 122.1% of FE2's (Brian Henderson)SM qualifying best at Runoffs 2022: 121.5% of FE2's (Danny Steyn)SM qualifying best at Runoffs 2023: 122.0% of FE2's (Danny Steyn)SM qualifying best at Runoffs 2024: 122.5% of FE2's (Ethan Goulart)SM qualifying best at Runoffs 2025: 123.1% of FE2's (Bobby Gossett)SM qualifying best at Runoffs 2026: 122.6% of FE2's (Brett Kowalski)GT2 race best at Runoffs 2018: 103.1% of FE2's (R Spencer Trenery)GT2 race best at Runoffs 2019: 100.3% of FE2's (Andrew Aquilante)GT2 race best at Runoffs 2020: 100.8% of FE2's (Andrew Aquilante)Off the chart: GT2 race best at Runoffs 2021: 127.8% of FE2's (Tim Kezman)Off the chart: GT2 race best at Runoffs 2022: 85.6% of FE2's (Daniel Bender)GT2 race best at Runoffs 2023: 101.6% of FE2's (Jared Odrick)GT2 race best at Runoffs 2024: 100.4% of FE2's (John Atwell)GT2 race best at Runoffs 2025: 100.1% of FE2's (John Atwell)GT2 race best at Runoffs 2026: 99.1% of FE2's (John Atwell)GT2 qualifying best at Runoffs 2018: 102.3% of FE2's (Andrew Aquilante)GT2 qualifying best at Runoffs 2019: 99.2% of FE2's (Andrew Aquilante)GT2 qualifying best at Runoffs 2020: 99.6% of FE2's (Andrew Aquilante)GT2 qualifying best at Runoffs 2021: 103.4% of FE2's (Andrew Aquilante)GT2 qualifying best at Runoffs 2022: 100.2% of FE2's (Andrew Aquilante)GT2 qualifying best at Runoffs 2023: 101.2% of FE2's (Barry Boes)GT2 qualifying best at Runoffs 2024: 100.3% of FE2's (Charlie Peter)GT2 qualifying best at Runoffs 2025: 99.5% of FE2's (Brad McAllister)GT2 qualifying best at Runoffs 2026: 98.0% of FE2's (John Atwell)EP race best at Runoffs 2018: 111.5% of FE2's (Glen McCready)EP race best at Runoffs 2019: 108.4% of FE2's (Jesse Prather)EP race best at Runoffs 2020: 111.8% of FE2's (Jesse Prather)EP race best at Runoffs 2021: 113.7% of FE2's (Jesse Prather)EP race best at Runoffs 2022: 114.2% of FE2's (Jesse Prather)EP race best at Runoffs 2023: 111.7% of FE2's (Greg Ira)EP race best at Runoffs 2024: 111.4% of FE2's (Tyler Ladd)EP race best at Runoffs 2025: 111.6% of FE2's (Tyler Ladd)EP race best at Runoffs 2026: 112.1% of FE2's (Jon Brakke)EP qualifying best at Runoffs 2018: 111.4% of FE2's (Glen McCready)EP qualifying best at Runoffs 2019: 108.9% of FE2's (Jesse Prather)EP qualifying best at Runoffs 2020: 110.9% of FE2's (Jesse Prather)EP qualifying best at Runoffs 2021: 112.2% of FE2's (Jesse Prather)EP qualifying best at Runoffs 2022: 110.3% of FE2's (Jesse Prather)EP qualifying best at Runoffs 2023: 111.3% of FE2's (John Hainsworth)EP qualifying best at Runoffs 2024: 111.6% of FE2's (Tyler Ladd)EP qualifying best at Runoffs 2025: 111.2% of FE2's (Jon Brakke)EP qualifying best at Runoffs 2026: 112.8% of FE2's (Jon Brakke)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
FE2SMGT2EPsolid race · dashed qualifying · each class's best lap as a share of FE2's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFE2SMGT2EP
Qual best Race best Trap Qual best Race best Trap vs FE2 % of FE2 Qual best Race best Trap vs FE2 % of FE2 Qual best Race best Trap vs FE2 % of FE2 
Road America Runoffs 20262026-09-282:12.326Franklin Futrelle · fastest of 8 · top 5 within 1.9s-0.149s (-0.11%)2:11.881Franklin Futrelle · fastest of 8 · top 5 within 1.6s-1.458s (-1.09%)143.5Steve Whitston-5.5 mph (-3.7%)2:42.173Brett Kowalski · fastest of 34 · top 5 within 0.3s-0.938s (-0.58%)2:42.725Francisco Barroso · fastest of 35 · top 5 within 0.2s-1.705s (-1.04%)119.6Wyatt Couch+0.3 mph (+0.3%)+30.844squal +29.847s123.4%qual 122.6%2:09.634John Atwell · fastest of 18 · top 5 within 4.3s-2.173s (-1.65%)2:10.650John Atwell · fastest of 18 · top 5 within 4.1s-2.797s (-2.10%)163.0Jack Stanford-0.3 mph (-0.2%)-1.231squal -2.692s99.1%qual 98.0%2:29.239Jon Brakke · fastest of 15 · top 5 within 5.2s+1.946s (+1.32%)2:27.869Jon Brakke · fastest of 15 · top 5 within 5.2s-0.887s (-0.60%)137.0Jon Brakke-3.8 mph (-2.7%)+15.988squal +16.913s112.1%qual 112.8%
37 rule changes (FE2: 1, SM: 2, GT2: 13, EP: 21)8 weight · 6 induction · 5 engine · 3 cars added · 3 tyres & wheels · 1 removed · 1 suspension & brakes · 4 wording · 6 othershowhide
  • EP Mini Cooper Compression Ratio #40517engine
  • EP 1996-2000 Honda Civic (CX, DX, VP, LX) with Engine Code D16Y7 #40322engine
  • EP 1275 Midget/Sprit Alternate intake manifold E/O #40370induction
  • EP HP Honda Civic (92-95) #40464weight -70 lbs
  • SM Rear Toe Link #40271other
  • EP Honda S2000 Hardtop #40138other
  • EP Miata track width - errors and omissions #39976wording
  • EP Triumph GT6 Spec Change. #40098induction
  • GT2 Panoz Esperante GTS Letter ID Number: #38494 - Additional Info #38584tyres & wheels
  • GT2 Appendix L Update #39923tyres & wheels
  • GT2 GT2 Porsche 997.2 GT3 Cup EDIT #40125other
  • GT2 Corvette C7 (14-19) L76 Specline Errors/Missing Changes #39838weight -100 lbs
  • GT2 GT2 Porsche 997.2 GT3 Cup #39936weight
  • SM Part Number Change Request #39914wording
  • GT2 Classification Request - Ginetta G56 GT4 (V8) #39625cars added
  • GT2 Remove GT3U from GCR as it is now in STU #39862removed
  • GT2 Audi R8 GT4 remove spec line notes #39864other
  • GT2 Allow Larger Air Cooled Engines in Porsche 911 GT2 #39249engine
  • GT2 Classify T1 BMW in GT2 #39408cars added
  • EP Request to Update E30 BMW Throttle Body Diameter Verbiage #39363induction
  • GT2 Additional Body Options to Replace Older Stock Car Bodies #39086other
  • GT2 GT3 Turbo to GT2? #39365induction
  • GT2 Tech Bulletins for GT2 and GT2-ST #39537cars added -100 lbs
  • EP TR2 Notes E&O #39180weight
  • EP Balance of Power #39187weight +50 lbs
  • EP Please Lower Weight of 280Z #38871weight -160 lbs
  • EP Miata Weight Adjustment Follow Up #38949weight -25 lbs
  • EP Weight Break for 1098 Midget / Sprite #38970weight -80 lbs
  • EP HP Volvo 142 spec omission #38994engine
  • EP HP Mini DOHC 1.6 #38996engine
  • EP Add to Rabbit description #39019wording
  • EP Clean-up 9.1.5.E.7e #39025suspension & brakes
  • EP Add TB size to Ford Mustang (94-98) Spec Line #39130induction
  • EP HP Plymouth Arrow spec omission #38995wording
  • EP Add Wheel Diameter to Appendix G #39008tyres & wheels
  • EP Add TB ID tolerance to general Prod rules #39009induction
  • FE2 FE & FE2 Bubble Tail #38978other
Road America Runoffs 20252025-09-292:12.475Franklin Futrelle · fastest of 11 · top 5 within 1.4s+0.969s (+0.74%)2:13.339Franklin Futrelle · fastest of 10 · top 5 within 0.6s+0.591s (+0.45%)149.0Steve Whitston+3.7 mph (+2.6%)2:43.111Bobby Gossett · fastest of 32 · top 5 within 0.3s+2.005s (+1.24%)2:44.430Kyle Greenhill · fastest of 28 · top 5 within 0.3s+2.944s (+1.82%)119.3Francisco Barroso-0.6 mph (-0.5%)+31.091squal +30.636s123.3%qual 123.1%2:11.807Brad McAllister · fastest of 16 · top 5 within 3.4s-0.053s (-0.04%)2:13.447John Atwell · fastest of 13 · top 5 within 3.6s+0.136s (+0.10%)163.3Charlie Peter-1.0 mph (-0.6%)+0.108squal -0.668s100.1%qual 99.5%2:27.293Jon Brakke · fastest of 21 · top 5 within 2.1s+0.490s (+0.33%)2:28.756Tyler Ladd · fastest of 19 · top 5 within 1.9s+0.887s (+0.60%)140.8Jon Brakke+0.1 mph (+0.1%)+15.417squal +14.818s111.6%qual 111.2%
26 rule changes (FE2: 1, SM: 4, GT2: 7, EP: 14)8 weight · 4 induction · 3 aero · 2 cars added · 1 engine · 1 tyres & wheels · 2 wording · 5 othershowhide
  • GT2 Rear Deck Lid for Older Air-Cooled Porsche #38506aero
  • EP BMW Z4 update #38490induction
  • EP EP Fiat 124 Spider Competition Adjustment Request #38498weight -50 lbs
  • EP Base Weight Adjustment for H-Production X1/9 Spec Lines #38255weight -50 lbs
  • SM SMX Data Submission - Penalties #38248other
  • SM SMX Penaly Clarification updated language #38337wording
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • EP Request for Classification of Chevrolet Spark #37755cars added
  • EP Request to Lower Ford Festiva Minimum Weight to 1600 LBS #37939weight -100 lbs
  • FE2 Driver Safety & Comfort #37965other
  • EP Request Competition Adjustment to BMW Z3 2.5L #37120induction
  • EP Interpretation of Production Rules on Mirrors #37235other
  • EP Weight Reduction for Honda S2000 #37466weight
  • EP Mazda 1999 Miata 1.8L #37488weight -50 lbs
  • GT2 Hood Bulge allowed #37000engine
  • GT2 OEM Wing Adjustment #37590aero
  • EP Effective date for Jan 2025 GCR updates #37654induction
  • GT2 GT2/ST - Remove Aftermarket/Racing ABS penalty #36538weight
  • EP Request to Reduce Weight of BMW 325i/is E30 (84-91) Spec Line #37119weight -50 lbs
  • GT2 Panoz Esperante GTS BOP #36686cars added
  • GT2 Correct language regarding OEM Areo Devices #37137aero
  • GT2 GT2 Sunbeam Tiger Alternate Carburetor #37198induction
  • EP Triumph GT6 Adjustments #37112weight
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • EP 1275 HP Spridget Level 2 Only #36518other
  • EP NA Miata Track Width Correction #36902wording
Road America Runoffs 20242024-10-012:11.506Porter Aiken · fastest of 18 · top 5 within 0.5s-1.300s (-0.98%)2:12.748Porter Aiken · fastest of 17 · top 5 within 2.0s-0.523s (-0.39%)145.3Porter Aiken+1.9 mph (+1.3%)2:41.106Ethan Goulart · fastest of 49 · top 5 within 0.5s-1.103s (-0.68%)2:41.486Brett Kowalski · fastest of 43 · top 5 within 0.3s-2.262s (-1.38%)119.9Alex Bertagnoli-1.4 mph (-1.2%)+28.738squal +29.600s121.6%qual 122.5%2:11.860Charlie Peter · fastest of 23 · top 5 within 1.1s-0.438s (-0.33%)2:13.311John Atwell · fastest of 23 · top 5 within 0.9s-0.968s (-0.72%)164.3Jonathan Start+2.1 mph (+1.3%)+0.563squal +0.354s100.4%qual 100.3%2:26.803Tyler Ladd · fastest of 16 · top 5 within 4.1s-0.519s (-0.35%)2:27.869Tyler Ladd · fastest of 16 · top 5 within 3.6s-1.178s (-0.79%)140.7Bill Miller-1.0 mph (-0.7%)+15.121squal +15.297s111.4%qual 111.6%
31 rule changes (SM: 4, GT2: 13, EP: 14)11 weight · 5 engine · 4 cars added · 3 induction · 1 aero · 1 suspension & brakes · 4 wording · 2 othershowhide
  • SM SMX Camera Rule Correction #36496wording
  • SM AIM ECU Protocol #36556engine
  • SM OE versus OEM Definitons #36608other
  • SM Shifter Bushing #36611suspension & brakes
  • EP Errant entry in HP production line item #36231other
  • GT2 GT2-ST Rule Clarification #36093wording
  • GT2 GT4 cars may run in GT2-ST #36235weight
  • EP NIssan 300ZX Z31 to EP #35830cars added
  • EP RX7 1993 and Up Request In EP Spec Lines, classify #36031cars added
  • EP Clean-up Multiple EP RX-8 Spec Lines In EP #36156wording
  • GT2 Request for Spec Line 1010 Reconsideration #35009weight +300 lbs
  • GT2 Request to Eliminate the FPR from the Corvette (-2013) with LS2 #35878induction
  • EP GCR Correction - Redundant HP Spec Lines #35623engine
  • GT2 Classify Corvette C8 (2020- ) into GT2/ST #33759cars added
  • GT2 Requesting classification for a 2015 Mitjet ST in GT2 #35408cars added
  • EP Update 1988-1991 Civic to Match 1988-1991 CRX #35399weight
  • GT2 Rear Blade Spoiler Clarification #35261aero
  • GT2 GT Direct Injection allowance and rules #35437engine
  • GT2 REDUCE C6 CORVETTE WEIGHT WITH OEM 7 LITER ENGINE REDUCE BY 150LB #35385weight -150 lbs
  • GT2 GT2/3 remove Direction Injection not allowed in Spec line notes #35439engine
  • EP Request to Review Z3 2.5 Spec Line #35073weight +50 lbs
  • EP Miata Alternate Head #35253weight -50 lbs
  • EP Triumph GT6 Adjustments #35255weight
  • EP Honda S2000 throttle body #35272induction
  • EP Correction within Triumph TR8 Spec Line #35315engine
  • EP Correction to EP 924S/944 Spec Line #35317weight
  • GT2 Dodge Viper Gen 3 hybrid Kit Update Request #35200induction
  • EP Porsche 944/924S Rule Change Request #35002weight
  • EP Triumph GT6 Adjustments #35054weight -30 lbs
  • GT2 Errors in GTCS Headings and Use of the Terms Category and ClassChange existing GTL and GTA Rules #34453weight
  • GT2 Late E & O #34966wording
Virginia International Raceway Runoffs 20232023-09-231:50.665Charles Russell Turner · fastest of 26 · top 5 within 2.3s-0.188s (-0.17%)1:51.098Franklin Futrelle · fastest of 19 · top 5 within 1.4s-20.947s (-15.86%)141.3Franklin Futrelle-0.6 mph (-0.4%)2:14.986Danny Steyn · fastest of 52 · top 5 within 0.1s+0.322s (+0.24%)2:16.229Julian DaCosta · fastest of 46 · top 5 within 0.3s-2.878s (-2.07%)120.3Jim Drago+1.1 mph (+0.9%)+25.131squal +24.321s122.6%qual 122.0%1:52.004Barry Boes · fastest of 15 · top 5 within 1.6s+0.918s (+0.83%)1:52.865Jared Odrick · fastest of 15 · top 5 within 1.0s-0.183s (-0.16%)164.0Tom Patton-0.2 mph (-0.1%)+1.767squal +1.339s101.6%qual 101.2%2:03.215John Hainsworth · fastest of 24 · top 5 within 4.3s+0.889s (+0.73%)2:04.050Greg Ira · fastest of 22 · top 5 within 5.3s-26.805s (-17.77%)144.6Greg Ira+3.1 mph (+2.2%)+12.952squal +12.550s111.7%qual 111.3%
33 rule changes (SM: 1, GT2: 19, EP: 13)11 induction · 7 weight · 5 engine · 2 aero · 2 cars added · 2 suspension & brakes · 1 tyres & wheels · 1 wording · 2 othershowhide
  • EP Hub Note Clean Up In EP TR8 Spec Line #34649wording
  • EP Triumph GT6 Adjustments #34662other
  • EP Triumph GT6 Adjustments: Brakes #34663suspension & brakes
  • GT2 GT2 Mazda 20B 3 rotor ENO #34765weight -220 lbs
  • EP Correct Intake Valve Size on 1500cc Midget/Spitfire #34419induction
  • GT2 appendix letter #33635 #34206weight
  • GT2 Remove Weight and Restrictor Penalty for Corvette C7 Body #34342weight
  • EP 914-6 Valve Size Correction #34185engine
  • GT2 Request to class 2011 Porsche Cayman S #33771cars added
  • GT2 Please classify Fields Cardinal V8 #33784cars added
  • EP Investigate Parity of Z3 #33343induction
  • GT2 Adding Ginetta G56 GTA Factory ProTune for GT2 Class #33825engine
  • GT2 GT2 Mazda 13B Turbo #33729induction
  • EP Revise 79-85 RX7 Brake Spec Line Allowance #33293suspension & brakes
  • EP Request alternate carburetors for EP 280z #33405engine
  • EP Fuel Injection 12a Mazda RX3 #33434engine
  • EP Mazda RX3 - Weight Reduction #33436weight -50 lbs
  • EP Request TR8 Dry Sump Allowance #33460other
  • EP Review Limited Prep Port Matching Rules #33600induction
  • EP 280ZX Classification Request #33611weight
  • GT2 Request Permission to Use a Substitute Turbo #33337induction
  • GT2 Request to Reduce Restriction on C7 GT2 Corvette #33342induction
  • GT2 Toyota 4A-F and 4A-FE 1.6L DOHC 16V Engine Request #33415engine
  • GT2 GT2 Mazda 13b turbocharger part # update #33437induction
  • GT2 GT2-ST BMW E36/46 spec line remove #33610aero
  • GT2 GT3 Choke option effective 1-01-2023 #33669induction
  • GT2 GT3 2.0L choke/weight option #33670weight
  • GT2 BOP adjustment for GT2 & GT2-ST #33681induction
  • SM BOP for NB1 and NB2 #32309weight
  • GT2 GT2 (TA2)/GTA Part Number Update #33315induction
  • GT2 Ginetta G56 GTA - Optional Wheels #33357tyres & wheels
  • GT2 Allow the MAShaw Body Kit on the GT2/ST Spec Line for BMW E36/E46 #32447aero
  • GT2 Request for C5/C6 Corvette Restrictor Size Review #32982induction
Virginia International Raceway Runoffs 20222022-09-241:50.853Charles Russell Turner · fastest of 25 · top 5 within 1.1s-0.209s (-0.19%)2:12.045Jason Conzo · fastest of 22 · top 5 within 1.8s+19.891s (+17.74%)141.9Eric Cruz-0.6 mph (-0.5%)2:14.664Danny Steyn · fastest of 60 · top 5 within 0.2s+0.112s (+0.08%)2:19.107Travis Wiley · fastest of 58 · top 5 within 0.9s+2.648s (+1.94%)119.2Jonathan Neudorf-0.6 mph (-0.5%)+7.062squal +23.811s105.3%qual 121.5%1:51.086Andrew Aquilante · fastest of 23 · top 5 within 1.1s+0.904s (+0.82%)1:53.048Daniel Bender · fastest of 17 · top 5 within 3.1s+0.573s (+0.51%)164.2Scotty B White+1.4 mph (+0.9%)-18.997squal +0.233s85.6%qual 100.2%2:02.326Jesse Prather · fastest of 17 · top 5 within 3.2s+1.339s (+1.11%)2:30.855Jesse Prather · fastest of 15 · top 5 within 2.5s+29.224s (+24.03%)141.5Jesse Prather-6.0 mph (-4.1%)+18.810squal +11.473s114.2%qual 110.3%
36 rule changes (SM: 1, GT2: 14, EP: 21)9 induction · 8 cars added · 4 engine · 4 weight · 3 suspension & brakes · 2 tyres & wheels · 3 wording · 3 othershowhide
  • EP Request to classify VW New Beetle 2.5L in EP #32725cars added
  • EP Request Rotary Injection on Dual Y manifold #32775engine
  • EP Request for Corrado Stroke & Displacement Correction #32985engine
  • GT2 Tail lights on all GT category race cars. #32799suspension & brakes
  • GT2 Addendum to letter #32514 Ginetta GTA G56 #33076cars added
  • GT2 Information requested for carbon roofs on BMW E36/E46 cars in GT2 #32682wording
  • GT2 Request to Allow the 95mm S54 BMW Crankshaft in GT2-ST #32698other
  • GT2 Request to classify Audi R8 FIA GT4 to GT2 #32805cars added
  • EP Subaru BRZ Model Years #32500other
  • EP EP MX-5 Global Cup Car #32218weight
  • EP Please Class BMW 128i in EP #32370cars added
  • EP Inconsistency in Body Work Descriptions #32396other
  • GT2 Typo in rules for shocks #32308suspension & brakes
  • GT2 additional response to letters #31898 & 32083 #32424weight +140 lbs
  • EP Mazda RX8 with 13b Rotary #32170induction
  • EP Request Idle control valve clarification #32178engine
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • EP EP Adjustments #31858induction
  • EP 1999 3.8L Ford Mustang to EP? #31635weight
  • EP Improved Touring Tires #32064tyres & wheels
  • GT2 Request to Classify Ginetta G40 in GT2 #31597cars added
  • GT2 2021 Supra GR GT4 #31737cars added
  • GT2 Proposed Technical Bulletin #31900induction
  • EP Throttle Body and Idle Air #31800induction
  • EP Porsche 968 Engine Questions #31831engine
  • EP Request weight reduction for 1979-1985 Mazda RX-7 #31833weight
  • GT2 GT2/ST Porsche Cayman #31451 correct TBR size error #31991wording
  • EP Porsche 968 Engine Questions #31478induction
  • EP PCS E. 2. n. 4. Add Axle Shaft to Allow FWD the Same Freedom #31592tyres & wheels
  • EP BMW Z3 2.5L Spec Line #31724induction
  • GT2 Restrictor Clarification for 2015 Cayman #31451induction
  • EP 944S2 Restrictor #31396induction
  • EP Classing Clarification for 1986 Toyota Corolla FX16 #31527cars added
  • EP E&O; MR2 Track #31120wording
  • GT2 Turbo Request for 13B Engine #30656induction
  • GT2 Request car classification #31032cars added
Indianapolis Motor Speedway Runoffs 20212021-09-251:36.395Max Grau · fastest of 28 · top 5 within 0.7s1:36.655Max Grau · fastest of 28 · top 5 within 0.7s146.2Gray Fowler1:57.695Brian Henderson · fastest of 90 · top 5 within 0.5s-0.611s (-0.52%)1:58.837Brian Henderson · fastest of 88 · top 5 within 0.3s-0.263s (-0.22%)119.8Kyle Greenhill+22.182squal +21.300s122.9%qual 122.1%1:39.665Andrew Aquilante · fastest of 22 · top 5 within 1.8s-0.254s (-0.25%)2:03.513Tim Kezman · fastest of 18 · top 5 within 9.6s+22.537s (+22.32%)163.7Jonathan Start+26.858squal +3.270s127.8%qual 103.4%1:48.181Jesse Prather · fastest of 31 · top 5 within 3.2s-1.416s (-1.29%)1:49.928Jesse Prather · fastest of 27 · top 5 within 0.9s-0.468s (-0.42%)143.4Jon Brakke+13.273squal +11.786s113.7%qual 112.2%
31 rule changes (SM: 1, GT2: 16, EP: 14)11 weight · 7 engine · 5 cars added · 2 suspension & brakes · 1 induction · 1 tyres & wheels · 2 wording · 2 othershowhide
  • GT2 Correct letter 30565 GT2/ST #31088weight
  • EP Request to Allow F22c Engine for 2000-2003 Honda S2000 #30548engine
  • EP Request a review of the S14 240SX in EP. #30873weight -200 lbs
  • GT2 Request the 04-06 Pontiac GTO WC Car Be Added to the GT2/ST Chart #30339cars added
  • GT2 Request to Update GTA Obsolete Part Numbers #30615wording
  • GT2 GTX class correction to GT2/ST #30973cars added
  • EP Lotus/Caterham 7 America Request #30392engine
  • EP Reclassify Daimler SP 250 #30721cars added
  • GT2 Porsche Cayman Engine Modification and Engine Request #30472engine
  • GT2 Request weight clarification Viper CC #30565weight
  • GT2 Variance, 2021 TA2 Rules vs GCR Appendix L #30641weight
  • EP Clarify Application of Percentage Based Weight Penalties #30669weight
  • EP Change Classification of 84-87 Mazda 626 from FP to HP #30350cars added
  • EP Fiat X1/9 brake rotors #30423suspension & brakes
  • EP NC MX-5 year range correction E&O #30503wording
  • EP Please Classify Mazda3 in FP #30165cars added
  • GT2 GT2 tiger firing order #30421engine
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • GT2 GT2-ST CORVETTE CHANGES #30029weight +100 lbs
  • GT2 Request underfloor clarification #30121tyres & wheels
  • GT2 29742 Change new wording to read as: #30329engine
  • GT2 ABS Restrictions #30064other
  • GT2 RM 21-01 C6 & C7 clarification #30192weight
  • EP Alternate Front Brake Rotors and Calipers for EP AH 3000 #29893suspension & brakes
  • GT2 Request change to engine firing order rule #29742engine
  • GT2 Request E-46 BMW M3 balance of performance #29833weight -100 lbs
  • EP Mk2 VW Consistency and Cleanup of FP and HP Spec Lines #29195weight -50 lbs
  • EP Correct Wording for Level 1 and Level 2 Induction Systems #29406induction
  • EP Weight Reduction for Datsun Roadster #29409weight -75 lbs
  • EP EP TR8 Adjustment #29512weight -100 lbs
  • GT2 Request for Bigger Engine in Plymouth Breeze #29380engine
Road America Runoffs 20202020-10-022:12.806Scott Rettich · fastest of 25 · top 5 within 0.6s2:13.271Owen McAllister · fastest of 23 · top 5 within 0.7s143.4Owen McAllister2:42.209Kyle Greenhill · fastest of 77 · top 5 within 0.5s2:43.748Preston Pardus · fastest of 75 · top 5 within 1.0s121.3Kyle Greenhill+30.477squal +29.403s122.9%qual 122.1%2:12.298Andrew Aquilante · fastest of 20 · top 5 within 2.9s2:14.279Andrew Aquilante · fastest of 19 · top 5 within 2.4s162.2Scotty B White+1.008squal -0.508s100.8%qual 99.6%2:27.322Jesse Prather · fastest of 20 · top 5 within 2.5s2:29.047Jesse Prather · fastest of 20 · top 5 within 2.8s141.7Jesse Prather+15.776squal +14.516s111.8%qual 110.9%
44 rule changes (FE2: 2, SM: 2, GT2: 26, EP: 14)9 induction · 8 engine · 8 weight · 4 aero · 4 cars added · 2 suspension & brakes · 1 tyres & wheels · 4 wording · 4 othershowhide
  • EP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O #29458tyres & wheels
  • GT2 rescind GT2 stock car bodies removal #29219other
  • GT2 E&O Typos in Appendix L #29447wording
  • GT2 GT2 wing width wording correction #29469aero
  • SM Radiator E&O Clarifications #29294engine
  • FE2 FE/FE2 Oil Cooler #29293wording
  • GT2 GT Category Wording #29193induction
  • GT2 Corvette GT2-ST intake manifold #29221induction
  • GT2 997.2 E&O link to 27915 #29373other
  • EP EP BMW Z3 Rule Clarification #28998engine
  • GT2 Request for allowance Trans Am SGT #28951weight
  • GT2 Omitted GT2 fender/hood openings #29171other
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • EP Request to Classify Porsche 911 2.0L #28456cars added
  • GT2 TA2 Gurney flap wicker clarification #28874aero
  • GT2 STO Gurney flap wicker clarification #28883aero
  • GT2 GT Gurney flap wicker clarification #28909aero
  • EP BMW Cylinder Head Casting and Part Numbers #28708engine
  • GT2 Request to Adjust Weight of OEM 8.4 Viper #28739weight -50 lbs
  • GT2 Request to Adjust Weight of OEM Chevrolet Corvette #28896weight -50 lbs
  • EP Request to Classify 1990-1994 Mazda Protege #28381cars added
  • EP Error in Mini Cooper Spec Line #28713wording
  • GT2 Request Corvette engine parity #28576engine
  • EP Caterham 7 Spec Line #28498engine
  • GT2 Request to revisit Panoz GT-S BoP #28280engine
  • GT2 GT2-ST Corvette LS2 & L76 #28583weight
  • GT2 GT2-ST Corvette L76 #28584weight
  • EP Request to Review Horsepower Parity #27662induction
  • EP E36 (92-95) Brakes Errors and Omissions #28058suspension & brakes
  • EP Request to allow 40 DCOE carb for the Datsun 510 #28195induction
  • EP Add Throttle Body Size these EP BMW Spec Lines #28422induction
  • GT2 Request 991.2 Porsche engine displacement verify typo #28194engine
  • EP Request for Help for Datsun 1200 #27934induction
  • GT2 Windshield Clips #27323other
  • GT2 Request to Add Chevrolet SS Body to Appendix L #27898wording
  • EP Request to List Mazda Miata Throttle Body Size #27907induction
  • GT2 Request Factory Five Daytona coupe classification #26308cars added
  • GT2 Porsche 991.2 GT3 Cup GT2 Classification #27701cars added
  • GT2 Request for Acura NSX Spec Line Changes #27755weight
  • GT2 GT2 991.1 restrictor size change #27914induction
  • GT2 GT2 996/997.1 weight change #27915weight -100 lbs
  • GT2 GT2/ST Corvette comp adjustment #27920induction
  • EP Re-organize Prep2 Cylinder Head Rules for Clarity & Consistency #27661engine
  • FE2 FE / FE2 Update Rules #27624weight
Virginia International Raceway Runoffs 20192019-10-051:51.062Liam Snyder · fastest of 20 · top 5 within 1.3s1:52.154Liam Snyder · fastest of 19 · top 5 within 0.7s142.6Robert Vanman2:14.552Todd Buras · fastest of 60 · top 5 within 0.2s2:16.459Elivan Goulart · fastest of 56 · top 5 within 0.4s119.8Jim Drago+24.305squal +23.490s121.7%qual 121.2%1:50.182Andrew Aquilante · fastest of 24 · top 5 within 4.5s1:52.475Andrew Aquilante · fastest of 19 · top 5 within 3.3s162.8Tom Patton+0.321squal -0.880s100.3%qual 99.2%2:00.987Jesse Prather · fastest of 29 · top 5 within 2.2s2:01.631Jesse Prather · fastest of 24 · top 5 within 1.4s147.5Kip Van Steenburg+9.477squal +9.925s108.4%qual 108.9%
35 rule changes (SM: 4, GT2: 21, EP: 10)9 weight · 8 cars added · 6 engine · 2 induction · 2 suspension & brakes · 2 tyres & wheels · 3 wording · 3 othershowhide
  • EP Request bodywork for Austin Healey Bugeye Sprite MK1 #27106other
  • EP Request to classify the GMX5 2019 #27263cars added
  • EP level one susp. component rule #27270suspension & brakes
  • EP Clarification of Carb Rules - Prep 1 #27300induction
  • EP Clarification of Carb Rules - Prep 2 #27301induction
  • EP Request Miata Eligibility - 2003 #27121other
  • GT2 TA2 Weight Clarification #27077weight
  • GT2 Request to classify Toyota Supra with 3SGTE engine #25185cars added
  • GT2 Request to Classify Acura NSX from T1 to GT2? #26121cars added
  • GT2 Request for TA2 BOP in GT2 #26509weight
  • EP Allow Firewall Modification for Fitment of 13B into RX8 #26726engine
  • GT2 Request for e36/e46 bmw 4500 cc v8 at 2950lbs in GT2/ST #26106engine
  • GT2 Request GTX Fuel injection for previous GT-1 tube frame cars #26141engine
  • GT2 Request to Classify Ligier JS2 R #26535cars added
  • EP Rollcenter Correction Clarification #25873tyres & wheels
  • EP Hardtops #26476wording
  • GT2 Request Ford Perfomance 5.2L crate engine FPR clarification #26159engine
  • GT2 Request Ride Height Clarification #26600suspension & brakes
  • EP Request for Competition Adjustment for 2nd Generation RX7 #25935weight -50 lbs
  • GT2 Request Porsche Cayman year classification #26241other
  • GT2 GT2/ST Porsche Cayman engine #26250engine
  • SM Request to allow aftermarket fuel filters. #26370wording
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
  • GT2 ST/GT2 BMW Flossman Kit Clarification #22138wording
  • GT2 Request Clarification/Revision of Appendix L (2013 TA2 Rules) #25110weight
  • GT2 Request to classify BMW E82 (1 series) into GT2 #25539cars added
  • GT2 2010 Cayman Street Tuner Into an STO Car,Addendum #25545weight
  • GT2 Request - Classify Ford Performance 5.2l #25716cars added
  • GT2 Add missing displacement, minimum weight. Remove #25765weight
  • GT2 Request for Ford FP 350s Weight Reduction #25806weight
  • GT2 Request to Classify EcoBoost Mustang #25842cars added
  • GT2 Request to Remove Mazda RX 7 Body Work Penalty #26024weight
  • GT2 GTX Homologation table update #26034cars added
Sonoma Raceway Runoffs 20182018-10-101:35.040Flinn Lazier · fastest of 9 · top 5 within 1.5s1:35.563Flinn Lazier · fastest of 9 · top 5 within 1.7s126.8Scott Rettich1:54.355Ken Sutherland · fastest of 48 · top 5 within 0.7s1:55.278Michael Carter · fastest of 48 · top 5 within 0.3s102.2Danny Steyn+19.715squal +19.315s120.6%qual 120.3%1:37.203Andrew Aquilante · fastest of 22 · top 5 within 2.1s1:38.524R Spencer Trenery · fastest of 19 · top 5 within 1.3s133.8Michael McAleenan+2.961squal +2.163s103.1%qual 102.3%1:45.828Glen McCready · fastest of 18 · top 5 within 4.3s1:46.518Glen McCready · fastest of 16 · top 5 within 2.8s106.5Aaron Downey+10.955squal +10.788s111.5%qual 111.4%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s1:39.919Andrew Aquilante · fastest of 36 · top 5 within 2.9s1:40.976Andrew Aquilante · fastest of 35 · top 5 within 2.6s1:49.597Matt Reynolds · fastest of 44 · top 5 within 1.2s1:50.396Matt Reynolds · fastest of 45 · top 5 within 0.5s
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:40.514Justin Hille · fastest of 45 · top 5 within 0.3s1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s1:25.405Andrew Aquilante · fastest of 21 · top 5 within 2.8s1:26.847Andrew Aquilante · fastest of 19 · top 5 within 1.5s1:33.847Michael Galati · fastest of 25 · top 5 within 0.8s1:34.266Michael Galati · fastest of 23 · top 5 within 1.3s
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s1:53.652Jordan Bupp · fastest of 27 · top 5 within 1.2s1:53.543Jordan Bupp · fastest of 22 · top 5 within 1.7s2:03.794Kip Van Steenburg · fastest of 29 · top 5 within 3.2s2:05.109Kip Van Steenburg · fastest of 28 · top 5 within 3.3s

By track

TrackEvents Typical % of FE2 Best Latest 
Road America4100.0%100.0%Runoffs 2020100.0%Runoffs 2026
Virginia International Raceway3100.0%100.0%Runoffs 2019100.0%Runoffs 2023
Indianapolis Motor Speedway2100.0%1 of 2 with FE2100.0%Runoffs 2021100.0%Runoffs 2021
Daytona International Speedway10 of 1 with FE2
Mid-Ohio Sports Car Course10 of 1 with FE2
Sonoma Raceway1100.0%100.0%Runoffs 2018100.0%Runoffs 2018
About this data
Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of FE2's best on the same day: the weather and the day cancel out, so one figure compares across years where lap times cannot; a class that suits one track more than another still reads differently there. It still moves when the yardstick's own balance changes or its field thins, and an event the yardstick did not run has no point. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.