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BoP Lab / Classes / FE2

FE2 vs FF vs SM 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×vsFF×FPFVFXGT1GT2GTXHPPP2vsSM×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 · FF 104.8% of FE2 Jonathan Kotyk, Virginia International Raceway Runoffs 2022 race · SM 105.3% of FE2 Travis Wiley, Virginia International Raceway Runoffs 2022 race · EP 108.4% of FE2 Jesse Prather, Virginia International Raceway Runoffs 2019 race

1:402:002:202:4017 rule changes between Runoffs 2018 and Runoffs 201917 ▾22 rule changes between Runoffs 2019 and Runoffs 202022 ▾18 rule changes between Runoffs 2020 and Runoffs 202118 ▾22 rule changes between Runoffs 2021 and Runoffs 202222 ▾15 rule changes between Runoffs 2022 and Runoffs 202315 ▾20 rule changes between Runoffs 2023 and Runoffs 202420 ▾23 rule changes between Runoffs 2024 and Runoffs 202523 ▾26 rule changes between Runoffs 2025 and Runoffs 202626 ▾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)FF race best at Runoffs 2015: 2:03.383 (Rick Payne)FF race best at Runoffs 2016: 1:30.133 (Neil Verhagen)FF race best at Runoffs 2017: 1:44.524 (Jonathon Kotyk)FF race best at Runoffs 2018: 1:42.049 (Jonathon Kotyk)FF race best at Runoffs 2019: 2:20.474 (Jonathan Kotyk)FF race best at Runoffs 2020: 2:24.268 (Jeffrey Bartz)FF race best at Runoffs 2021: 1:55.676 (Jonathan Kotyk)FF race best at Runoffs 2022: 2:18.358 (Jonathan Kotyk)FF race best at Runoffs 2023: 2:00.583 (Jonathan Kotyk)FF race best at Runoffs 2024: 2:22.057 (Sebastian Mateo Naranjo)FF race best at Runoffs 2025: 2:25.541 (Calvin Kautz)FF race best at Runoffs 2026: 2:23.686 (Nathan Down)FF qualifying best at Runoffs 2015: 2:02.489 (Tim Kautz)FF qualifying best at Runoffs 2016: 1:29.213 (Neil Verhagen)FF qualifying best at Runoffs 2017: 1:44.601 (Zach Holden)FF qualifying best at Runoffs 2018: 1:41.612 (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 1:59.563 (Tyler O'Connor)FF qualifying best at Runoffs 2020: 2:22.916 (Simon Sikes)FF qualifying best at Runoffs 2021: 1:44.359 (Jonathan Kotyk)FF qualifying best at Runoffs 2022: 1:59.215 (Jonathan Kotyk)FF qualifying best at Runoffs 2023: 1:59.249 (Nolan Allaer)FF qualifying best at Runoffs 2024: 2:22.552 (Calvin Kautz)FF qualifying best at Runoffs 2025: 2:24.905 (Jonathan Kotyk)FF qualifying best at Runoffs 2026: 2:23.047 (David Ybarra)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)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
FE2FFSMEPsolid race · dashed qualifying · slower is lower
100%105%110%115%120%125%17 rule changes between Runoffs 2018 and Runoffs 201917 ▾22 rule changes between Runoffs 2019 and Runoffs 202022 ▾18 rule changes between Runoffs 2020 and Runoffs 202118 ▾22 rule changes between Runoffs 2021 and Runoffs 202222 ▾15 rule changes between Runoffs 2022 and Runoffs 202315 ▾20 rule changes between Runoffs 2023 and Runoffs 202420 ▾23 rule changes between Runoffs 2024 and Runoffs 202523 ▾26 rule changes between Runoffs 2025 and Runoffs 202626 ▾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)FF race best at Runoffs 2018: 106.8% of FE2's (Jonathon Kotyk)FF race best at Runoffs 2019: 125.3% of FE2's (Jonathan Kotyk)FF race best at Runoffs 2020: 108.3% of FE2's (Jeffrey Bartz)FF race best at Runoffs 2021: 119.7% of FE2's (Jonathan Kotyk)FF race best at Runoffs 2022: 104.8% of FE2's (Jonathan Kotyk)FF race best at Runoffs 2023: 108.5% of FE2's (Jonathan Kotyk)FF race best at Runoffs 2024: 107.0% of FE2's (Sebastian Mateo Naranjo)FF race best at Runoffs 2025: 109.2% of FE2's (Calvin Kautz)FF race best at Runoffs 2026: 109.0% of FE2's (Nathan Down)FF qualifying best at Runoffs 2018: 106.9% of FE2's (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 107.7% of FE2's (Tyler O'Connor)FF qualifying best at Runoffs 2020: 107.6% of FE2's (Simon Sikes)FF qualifying best at Runoffs 2021: 108.3% of FE2's (Jonathan Kotyk)FF qualifying best at Runoffs 2022: 107.5% of FE2's (Jonathan Kotyk)FF qualifying best at Runoffs 2023: 107.8% of FE2's (Nolan Allaer)FF qualifying best at Runoffs 2024: 108.4% of FE2's (Calvin Kautz)FF qualifying best at Runoffs 2025: 109.4% of FE2's (Jonathan Kotyk)FF qualifying best at Runoffs 2026: 108.1% of FE2's (David Ybarra)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)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
FE2FFSMEPsolid 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
EventFE2FFSMEP
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%)2:23.047David Ybarra · fastest of 20 · top 5 within 1.4s-1.858s (-1.28%)2:23.686Nathan Down · fastest of 20 · top 5 within 1.6s-1.855s (-1.27%)138.9Tazio Stefanelli+0.5 mph (+0.3%)+11.805squal +10.721s109.0%qual 108.1%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%2:29.239Jon 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%
26 rule changes (FE2: 1, FF: 2, SM: 2, EP: 21)6 weight · 5 engine · 5 induction · 2 tyres & wheels · 1 suspension & brakes · 4 wording · 3 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
  • FF Clarification in FF Kent 1600 Compression Ratio Paragraph #40293engine
  • SM Rear Toe Link #40271other
  • EP Honda S2000 Hardtop #40138other
  • EP Miata track width - errors and omissions #39976wording
  • EP Triumph GT6 Spec Change. #40098induction
  • SM Part Number Change Request #39914wording
  • EP Request to Update E30 BMW Throttle Body Diameter Verbiage #39363induction
  • FF Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheels
  • 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%)2:24.905Jonathan Kotyk · fastest of 17 · top 5 within 1.1s+2.353s (+1.65%)2:25.541Calvin Kautz · fastest of 16 · top 5 within 0.5s+3.484s (+2.45%)138.4Tazio Stefanelli-2.3 mph (-1.6%)+12.202squal +12.430s109.2%qual 109.4%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%2:27.293Jon 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%
23 rule changes (FE2: 1, FF: 4, SM: 4, EP: 14)9 weight · 3 induction · 3 tyres & wheels · 1 cars added · 2 wording · 5 othershowhide
  • 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
  • FF Page 228, FF tire rule 9.1.1.10.e #38251tyres & wheels
  • 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
  • FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheels
  • EP Effective date for Jan 2025 GCR updates #37654induction
  • EP Request to Reduce Weight of BMW 325i/is E30 (84-91) Spec Line #37119weight -50 lbs
  • 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
  • FF Change FF/FC Weight with Sequential Gearbox #36651weight
  • FF Alternative Oversize Honda Fit Pistons #37064weight
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%)2:22.552Calvin Kautz · fastest of 13 · top 5 within 1.1s-0.364s (-0.25%)2:22.057Sebastian Mateo Naranjo · fastest of 13 · top 5 within 0.6s-2.211s (-1.53%)140.7Calvin Kautz+2.6 mph (+1.9%)+9.309squal +11.046s107.0%qual 108.4%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%2:26.803Tyler 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%
20 rule changes (FF: 2, SM: 4, EP: 14)7 weight · 4 engine · 2 cars added · 1 induction · 1 suspension & brakes · 2 wording · 3 othershowhide
  • FF Update to FF EGR Blanking Plate Rule #36633engine
  • 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
  • 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
  • EP GCR Correction - Redundant HP Spec Lines #35623engine
  • EP Update 1988-1991 Civic to Match 1988-1991 CRX #35399weight
  • 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
  • FF Honda Fit Oversize Piston Rings #35305other
  • EP Porsche 944/924S Rule Change Request #35002weight
  • EP Triumph GT6 Adjustments #35054weight -30 lbs
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%)1:59.249Nolan Allaer · fastest of 8 · top 5 within 2.8s+0.034s (+0.03%)2:00.583Jonathan Kotyk · fastest of 8 · top 5 within 0.4s-17.775s (-12.85%)138.4Calvin Kautz+0.1 mph (+0.1%)+9.485squal +8.584s108.5%qual 107.8%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%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%
15 rule changes (FF: 1, SM: 1, EP: 13)4 engine · 3 induction · 3 weight · 2 suspension & brakes · 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
  • EP Correct Intake Valve Size on 1500cc Midget/Spitfire #34419induction
  • EP 914-6 Valve Size Correction #34185engine
  • EP Investigate Parity of Z3 #33343induction
  • FF Add Fast Forward Part Numbers for Honda Fit Engine #33752engine
  • 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
  • SM BOP for NB1 and NB2 #32309weight
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%)1:59.215Jonathan Kotyk · fastest of 13 · top 5 within 1.2s-0.348s (-0.29%)2:18.358Jonathan Kotyk · fastest of 12 · top 5 within 2.4s-2.116s (-1.51%)138.3Tim Kautz+2.2 mph (+1.6%)+6.313squal +8.362s104.8%qual 107.5%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%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%
22 rule changes (SM: 1, EP: 21)6 induction · 4 engine · 3 cars added · 3 weight · 2 tyres & wheels · 1 suspension & brakes · 1 wording · 2 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
  • 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
  • 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
  • EP Throttle Body and Idle Air #31800induction
  • EP Porsche 968 Engine Questions #31831engine
  • EP Request weight reduction for 1979-1985 Mazda RX-7 #31833weight
  • 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
  • EP 944S2 Restrictor #31396induction
  • EP Classing Clarification for 1986 Toyota Corolla FX16 #31527cars added
  • EP E&O; MR2 Track #31120wording
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 Fowler1:44.359Jonathan Kotyk · fastest of 24 · top 5 within 1.1s-0.242s (-0.23%)1:55.676Jonathan Kotyk · fastest of 23 · top 5 within 1.8s+11.152s (+10.67%)141.6Nicholas Sheppard+19.021squal +7.964s119.7%qual 108.3%1:57.695Brian 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%1:48.181Jesse 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%
18 rule changes (FF: 3, SM: 1, EP: 14)5 weight · 4 engine · 3 cars added · 2 suspension & brakes · 1 induction · 2 wording · 1 othershowhide
  • 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
  • EP Lotus/Caterham 7 America Request #30392engine
  • EP Reclassify Daimler SP 250 #30721cars added
  • 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
  • FF Kent crankshaft clarification #30426wording
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • EP Alternate Front Brake Rotors and Calipers for EP AH 3000 #29893suspension & brakes
  • 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
  • FF Allow Optional Coolant Bleed Line to Correct a Known Problem #29673engine
  • FF Clarification regarding Honda LC1 ECU implementation date #29684engine
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 McAllister2:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s138.1Jeffrey Bartz+10.997squal +10.110s108.3%qual 107.6%2:42.209Kyle 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%2:27.322Jesse 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%
22 rule changes (FE2: 2, FF: 4, SM: 2, EP: 14)8 engine · 5 induction · 2 cars added · 2 suspension & brakes · 2 tyres & wheels · 1 weight · 2 wordingshowhide
  • EP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O #29458tyres & wheels
  • SM Radiator E&O Clarifications #29294engine
  • FE2 FE/FE2 Oil Cooler #29293wording
  • EP EP BMW Z3 Rule Clarification #28998engine
  • FF Clarification regarding Honda LC1 ECU implementation #29135engine
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • EP Request to Classify Porsche 911 2.0L #28456cars added
  • EP BMW Cylinder Head Casting and Part Numbers #28708engine
  • EP Request to Classify 1990-1994 Mazda Protege #28381cars added
  • EP Error in Mini Cooper Spec Line #28713wording
  • EP Caterham 7 Spec Line #28498engine
  • FF E&O FF Kent Engine alternator language #28204engine
  • 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
  • FF Honda Racing HPD low cost ECU proposal #27563engine
  • FF Update rain tire designation #28443tyres & wheels
  • EP Request for Help for Datsun 1200 #27934induction
  • EP Request to List Mazda Miata Throttle Body Size #27907induction
  • 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 Vanman1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s136.2Derek Ketchie+28.320squal +8.501s125.3%qual 107.7%2:14.552Todd 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%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%
17 rule changes (FF: 3, SM: 4, EP: 10)4 engine · 3 induction · 2 tyres & wheels · 2 weight · 1 cars added · 1 suspension & brakes · 2 wording · 2 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
  • EP Allow Firewall Modification for Fitment of 13B into RX8 #26726engine
  • EP Rollcenter Correction Clarification #25873tyres & wheels
  • EP Hardtops #26476wording
  • EP Request for Competition Adjustment for 2nd Generation RX7 #25935weight -50 lbs
  • SM Request to allow aftermarket fuel filters. #26370wording
  • FF Request for Oversize Honda Fit Pistons #25810engine
  • FF Heat Shield - Fit Intake #26102induction
  • FF Request catch cans/tanks clarification #26158engine
  • 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
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 Rettich1:41.612Jonathon Kotyk · fastest of 22 · top 5 within 1.7s1:42.049Jonathon Kotyk · fastest of 22 · top 5 within 1.3s115.7Denny Renfrow+6.486squal +6.572s106.8%qual 106.9%1:54.355Ken 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%1:45.828Glen 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 20172017-09-251:44.601Zach Holden · fastest of 36 · top 5 within 1.2s1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s1:49.597Matt 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 20162016-09-191:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s1:33.847Michael 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 20152015-09-212:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s2:03.794Kip 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.