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BoP Lab / Classes / EP

EP vs FF vs FM vs FV pace at every track

Lap times across years say as much about the weather as the class. % of EP is each class's best lap as a share of EP'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-SpecEP×FAFCFE2vsFF×vsFM×FPvsFV×FXGT1GT2GTXHPPP2SMSMXSRF3STLSTUT1T2T3T4Show 50 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: EP 100.0% of EP Kip Van Steenburg, Daytona International Speedway Runoffs 2015 race · FF 91.7% of EP Jonathan Kotyk, Virginia International Raceway Runoffs 2022 race · FM 91.6% of EP Jarret Voorhies, Indianapolis Motor Speedway Runoffs 2017 race · FV 91.5% of EP Andrew Whitston, Virginia International Raceway Runoffs 2022 race

1:402:002:202:4019 rule changes between Runoffs 2018 and Runoffs 201919 ▾24 rule changes between Runoffs 2019 and Runoffs 202024 ▾17 rule changes between Runoffs 2020 and Runoffs 202117 ▾25 rule changes between Runoffs 2021 and Runoffs 202225 ▾14 rule changes between Runoffs 2022 and Runoffs 202314 ▾18 rule changes between Runoffs 2023 and Runoffs 202418 ▾18 rule changes between Runoffs 2024 and Runoffs 202518 ▾23 rule changes between Runoffs 2025 and Runoffs 202623 ▾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)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)FM race best at Runoffs 2015: 1:58.029 (Joseph Burton-Harris)FM race best at Runoffs 2016: 1:27.922 (Jacob Loomis)FM race best at Runoffs 2017: 1:41.146 (Jarret Voorhies)FM race best at Runoffs 2018: 1:37.909 (Bryce Cornet)FM race best at Runoffs 2019: 2:15.816 (Bryce Cornet)FM qualifying best at Runoffs 2015: 1:57.804 (Joseph Burton-Harris)FM qualifying best at Runoffs 2016: 1:26.043 (Jacob Loomis)FM qualifying best at Runoffs 2017: 1:41.231 (Jarret Voorhies)FM qualifying best at Runoffs 2018: 1:37.598 (Bryce Cornet)FM qualifying best at Runoffs 2019: 1:55.124 (Bryce Cornet)FV race best at Runoffs 2015: 2:21.142 (Andrew Whitston)FV race best at Runoffs 2016: 1:38.066 (Flinn Lazier)FV race best at Runoffs 2017: 1:55.923 (Michael Varacins)FV race best at Runoffs 2018: 1:53.639 (Alex Scaler)FV race best at Runoffs 2019: 2:18.289 (Zachary Whitston)FV race best at Runoffs 2020: 2:45.816 (Alex Scaler)FV race best at Runoffs 2021: 1:57.234 (Alex Scaler)FV race best at Runoffs 2022: 2:18.093 (Andrew Whitston)FV race best at Runoffs 2023: 2:16.611 (Andrew Abbott)FV race best at Runoffs 2024: 2:44.834 (Andrew Abbott)FV race best at Runoffs 2025: 2:46.736 (Zachary Whitston)FV race best at Runoffs 2026: 2:45.272 (Brian Farnham)FV qualifying best at Runoffs 2015: 2:21.167 (Roger Siebenaler)FV qualifying best at Runoffs 2016: 1:37.942 (Alex Scaler)FV qualifying best at Runoffs 2017: 1:55.759 (Michael Varacins)FV qualifying best at Runoffs 2018: 1:52.637 (Skip Streets)FV qualifying best at Runoffs 2019: 2:15.712 (Andrew Whitston)FV qualifying best at Runoffs 2020: 2:43.994 (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 1:57.479 (Andrew Whitston)FV qualifying best at Runoffs 2022: 2:15.116 (Brian Farnham)FV qualifying best at Runoffs 2023: 2:15.639 (Andrew Whitston)FV qualifying best at Runoffs 2024: 2:42.643 (Andrew Whitston)FV qualifying best at Runoffs 2025: 2:44.101 (Andrew Abbott)FV qualifying best at Runoffs 2026: 2:46.536 (Zachary Whitston)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
EPFFFMFVsolid race · dashed qualifying · slower is lower
90%95%100%105%110%115%19 rule changes between Runoffs 2018 and Runoffs 201919 ▾24 rule changes between Runoffs 2019 and Runoffs 202024 ▾17 rule changes between Runoffs 2020 and Runoffs 202117 ▾25 rule changes between Runoffs 2021 and Runoffs 202225 ▾14 rule changes between Runoffs 2022 and Runoffs 202314 ▾18 rule changes between Runoffs 2023 and Runoffs 202418 ▾18 rule changes between Runoffs 2024 and Runoffs 202518 ▾23 rule changes between Runoffs 2025 and Runoffs 202623 ▾EP race best at Runoffs 2015: 100.0% of EP's (Kip Van Steenburg)EP race best at Runoffs 2016: 100.0% of EP's (Michael Galati)EP race best at Runoffs 2017: 100.0% of EP's (Matt Reynolds)EP race best at Runoffs 2018: 100.0% of EP's (Glen McCready)EP race best at Runoffs 2019: 100.0% of EP's (Jesse Prather)EP race best at Runoffs 2020: 100.0% of EP's (Jesse Prather)EP race best at Runoffs 2021: 100.0% of EP's (Jesse Prather)EP race best at Runoffs 2022: 100.0% of EP's (Jesse Prather)EP race best at Runoffs 2023: 100.0% of EP's (Greg Ira)EP race best at Runoffs 2024: 100.0% of EP's (Tyler Ladd)EP race best at Runoffs 2025: 100.0% of EP's (Tyler Ladd)EP race best at Runoffs 2026: 100.0% of EP's (Jon Brakke)EP qualifying best at Runoffs 2015: 100.0% of EP's (Kip Van Steenburg)EP qualifying best at Runoffs 2016: 100.0% of EP's (Michael Galati)EP qualifying best at Runoffs 2017: 100.0% of EP's (Matt Reynolds)EP qualifying best at Runoffs 2018: 100.0% of EP's (Glen McCready)EP qualifying best at Runoffs 2019: 100.0% of EP's (Jesse Prather)EP qualifying best at Runoffs 2020: 100.0% of EP's (Jesse Prather)EP qualifying best at Runoffs 2021: 100.0% of EP's (Jesse Prather)EP qualifying best at Runoffs 2022: 100.0% of EP's (Jesse Prather)EP qualifying best at Runoffs 2023: 100.0% of EP's (John Hainsworth)EP qualifying best at Runoffs 2024: 100.0% of EP's (Tyler Ladd)EP qualifying best at Runoffs 2025: 100.0% of EP's (Jon Brakke)EP qualifying best at Runoffs 2026: 100.0% of EP's (Jon Brakke)FF race best at Runoffs 2015: 98.6% of EP's (Rick Payne)FF race best at Runoffs 2016: 95.6% of EP's (Neil Verhagen)FF race best at Runoffs 2017: 94.7% of EP's (Jonathon Kotyk)FF race best at Runoffs 2018: 95.8% of EP's (Jonathon Kotyk)FF race best at Runoffs 2019: 115.5% of EP's (Jonathan Kotyk)FF race best at Runoffs 2020: 96.8% of EP's (Jeffrey Bartz)FF race best at Runoffs 2021: 105.2% of EP's (Jonathan Kotyk)FF race best at Runoffs 2022: 91.7% of EP's (Jonathan Kotyk)FF race best at Runoffs 2023: 97.2% of EP's (Jonathan Kotyk)FF race best at Runoffs 2024: 96.1% of EP's (Sebastian Mateo Naranjo)FF race best at Runoffs 2025: 97.8% of EP's (Calvin Kautz)FF race best at Runoffs 2026: 97.2% of EP's (Nathan Down)FF qualifying best at Runoffs 2015: 98.9% of EP's (Tim Kautz)FF qualifying best at Runoffs 2016: 95.1% of EP's (Neil Verhagen)FF qualifying best at Runoffs 2017: 95.4% of EP's (Zach Holden)FF qualifying best at Runoffs 2018: 96.0% of EP's (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 98.8% of EP's (Tyler O'Connor)FF qualifying best at Runoffs 2020: 97.0% of EP's (Simon Sikes)FF qualifying best at Runoffs 2021: 96.5% of EP's (Jonathan Kotyk)FF qualifying best at Runoffs 2022: 97.5% of EP's (Jonathan Kotyk)FF qualifying best at Runoffs 2023: 96.8% of EP's (Nolan Allaer)FF qualifying best at Runoffs 2024: 97.1% of EP's (Calvin Kautz)FF qualifying best at Runoffs 2025: 98.4% of EP's (Jonathan Kotyk)FF qualifying best at Runoffs 2026: 95.9% of EP's (David Ybarra)FM race best at Runoffs 2015: 94.3% of EP's (Joseph Burton-Harris)FM race best at Runoffs 2016: 93.3% of EP's (Jacob Loomis)FM race best at Runoffs 2017: 91.6% of EP's (Jarret Voorhies)FM race best at Runoffs 2018: 91.9% of EP's (Bryce Cornet)FM race best at Runoffs 2019: 111.7% of EP's (Bryce Cornet)FM qualifying best at Runoffs 2015: 95.2% of EP's (Joseph Burton-Harris)FM qualifying best at Runoffs 2016: 91.7% of EP's (Jacob Loomis)FM qualifying best at Runoffs 2017: 92.4% of EP's (Jarret Voorhies)FM qualifying best at Runoffs 2018: 92.2% of EP's (Bryce Cornet)FM qualifying best at Runoffs 2019: 95.2% of EP's (Bryce Cornet)FV race best at Runoffs 2015: 112.8% of EP's (Andrew Whitston)FV race best at Runoffs 2016: 104.0% of EP's (Flinn Lazier)FV race best at Runoffs 2017: 105.0% of EP's (Michael Varacins)FV race best at Runoffs 2018: 106.7% of EP's (Alex Scaler)FV race best at Runoffs 2019: 113.7% of EP's (Zachary Whitston)FV race best at Runoffs 2020: 111.3% of EP's (Alex Scaler)FV race best at Runoffs 2021: 106.6% of EP's (Alex Scaler)FV race best at Runoffs 2022: 91.5% of EP's (Andrew Whitston)FV race best at Runoffs 2023: 110.1% of EP's (Andrew Abbott)FV race best at Runoffs 2024: 111.5% of EP's (Andrew Abbott)FV race best at Runoffs 2025: 112.1% of EP's (Zachary Whitston)FV race best at Runoffs 2026: 111.8% of EP's (Brian Farnham)FV qualifying best at Runoffs 2015: 114.0% of EP's (Roger Siebenaler)FV qualifying best at Runoffs 2016: 104.4% of EP's (Alex Scaler)FV qualifying best at Runoffs 2017: 105.6% of EP's (Michael Varacins)FV qualifying best at Runoffs 2018: 106.4% of EP's (Skip Streets)FV qualifying best at Runoffs 2019: 112.2% of EP's (Andrew Whitston)FV qualifying best at Runoffs 2020: 111.3% of EP's (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 108.6% of EP's (Andrew Whitston)FV qualifying best at Runoffs 2022: 110.5% of EP's (Brian Farnham)FV qualifying best at Runoffs 2023: 110.1% of EP's (Andrew Whitston)FV qualifying best at Runoffs 2024: 110.8% of EP's (Andrew Whitston)FV qualifying best at Runoffs 2025: 111.4% of EP's (Andrew Abbott)FV qualifying best at Runoffs 2026: 111.6% of EP's (Zachary Whitston)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
EPFFFMFVsolid race · dashed qualifying · each class's best lap as a share of EP's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventEPFFFMFV
Qual best Race best Trap Qual best Race best Trap vs EP % of EP Qual best Race best Trap vs EP % of EP Qual best Race best Trap vs EP % of EP 
Road America Runoffs 20262026-09-282:29.239Jon 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%)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%)-4.183squal -6.192s97.2%qual 95.9%2:46.536Zachary Whitston · fastest of 37 · top 5 within 1.7s+2.435s (+1.48%)2:45.272Brian Farnham · fastest of 34 · top 5 within 1.3s-1.464s (-0.88%)117.4Rick Shields+0.2 mph (+0.1%)+17.403squal +17.297s111.8%qual 111.6%
23 rule changes (EP: 21, FF: 2)6 weight · 5 engine · 5 induction · 2 tyres & wheels · 1 suspension & brakes · 3 wording · 1 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
  • EP Honda S2000 Hardtop #40138other
  • EP Miata track width - errors and omissions #39976wording
  • EP Triumph GT6 Spec Change. #40098induction
  • 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
Road America Runoffs 20252025-09-292:27.293Jon 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%)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%)-3.215squal -2.388s97.8%qual 98.4%2:44.101Andrew Abbott · fastest of 34 · top 5 within 1.3s+1.458s (+0.90%)2:46.736Zachary Whitston · fastest of 29 · top 5 within 0.6s+1.902s (+1.15%)117.2Zachary Whitston+0.7 mph (+0.6%)+17.980squal +16.808s112.1%qual 111.4%
18 rule changes (EP: 14, FF: 4)9 weight · 3 induction · 2 tyres & wheels · 1 cars added · 1 wording · 2 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
  • FF Page 228, FF tire rule 9.1.1.10.e #38251tyres & wheels
  • EP Request for Classification of Chevrolet Spark #37755cars added
  • EP Request to Lower Ford Festiva Minimum Weight to 1600 LBS #37939weight -100 lbs
  • 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
  • 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 20242024-10-012:26.803Tyler 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%)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%)-5.812squal -4.251s96.1%qual 97.1%2:42.643Andrew Whitston · fastest of 27 · top 5 within 2.3s-1.351s (-0.82%)2:44.834Andrew Abbott · fastest of 27 · top 5 within 0.9s-0.982s (-0.59%)116.5Brian Farnham-0.7 mph (-0.6%)+16.965squal +15.840s111.5%qual 110.8%
18 rule changes (EP: 14, FF: 2, FV: 2)7 weight · 3 engine · 2 cars added · 1 induction · 1 suspension & brakes · 1 tyres & wheels · 1 wording · 2 othershowhide
  • FF Update to FF EGR Blanking Plate Rule #36633engine
  • FV Disc Brakes #36822suspension & 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
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
Virginia International Raceway Runoffs 20232023-09-232:03.215John 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%)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%)-3.467squal -3.966s97.2%qual 96.8%2:15.639Andrew Whitston · fastest of 27 · top 5 within 1.4s+0.523s (+0.39%)2:16.611Andrew Abbott · fastest of 23 · top 5 within 1.6s-1.482s (-1.07%)115.6Brian Farnham-0.2 mph (-0.2%)+12.561squal +12.424s110.1%qual 110.1%
14 rule changes (EP: 13, FF: 1)4 engine · 3 induction · 2 suspension & brakes · 2 weight · 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
Virginia International Raceway Runoffs 20222022-09-242:02.326Jesse 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%)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%)-12.497squal -3.111s91.7%qual 97.5%2:15.116Brian Farnham · fastest of 29 · top 5 within 1.1s-0.596s (-0.44%)2:18.093Andrew Whitston · fastest of 28 · top 5 within 1.2s-0.196s (-0.14%)115.8Jonathan Weisheit+1.1 mph (+0.9%)-12.762squal +12.790s91.5%qual 110.5%
25 rule changes (EP: 21, FV: 4)7 weight · 6 induction · 4 engine · 3 cars added · 2 tyres & wheels · 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
  • EP EP Adjustments #31858induction
  • EP 1999 3.8L Ford Mustang to EP? #31635weight
  • EP Improved Touring Tires #32064tyres & wheels
  • FV Connecting Rod Update Request for 9.1.1.C Formula Vee (FV) 5.C.6 #32160weight
  • FV E&O clarification of connecting rod center-to-center length #32183weight
  • 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
  • FV Update direct replacement connecting rod information #31843weight
  • EP 944S2 Restrictor #31396induction
  • EP Classing Clarification for 1986 Toyota Corolla FX16 #31527cars added
  • FV Formula V Connecting Rod Replacement #31448weight
  • EP E&O; MR2 Track #31120wording
Indianapolis Motor Speedway Runoffs 20212021-09-251:48.181Jesse 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 Brakke1:44.359Jonathan 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+5.748squal -3.822s105.2%qual 96.5%1:57.479Andrew Whitston · fastest of 48 · top 5 within 0.8s+1.720s (+1.49%)1:57.234Alex Scaler · fastest of 47 · top 5 within 1.0s+1.311s (+1.13%)124.0Mark Edwards+7.306squal +9.298s106.6%qual 108.6%
17 rule changes (EP: 14, FF: 3)5 weight · 4 engine · 3 cars added · 2 suspension & brakes · 1 induction · 2 wordingshowhide
  • 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
  • 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 20202020-10-022:27.322Jesse Prather · fastest of 20 · top 5 within 2.5s2:29.047Jesse Prather · fastest of 20 · top 5 within 2.8s141.7Jesse Prather2:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s138.1Jeffrey Bartz-4.779squal -4.406s96.8%qual 97.0%2:43.994Hunter Phelps-Barron · fastest of 28 · top 5 within 0.6s2:45.816Alex Scaler · fastest of 24 · top 5 within 1.5s117.1Hunter Phelps-Barron+16.769squal +16.672s111.3%qual 111.3%
24 rule changes (EP: 14, FF: 4, FV: 6)8 tyres & wheels · 7 engine · 5 induction · 2 cars added · 1 suspension & brakes · 1 wordingshowhide
  • EP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O #29458tyres & wheels
  • EP EP BMW Z3 Rule Clarification #28998engine
  • FF Clarification regarding Honda LC1 ECU implementation #29135engine
  • EP Request to Classify Porsche 911 2.0L #28456cars added
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • 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
  • FV Update rain tire designation #28444tyres & wheels
  • EP Request for Help for Datsun 1200 #27934induction
  • EP Request to List Mazda Miata Throttle Body Size #27907induction
  • FV FV Allow non-spec tire in Regional competition #26284tyres & wheels
  • FV Request to Allow Rear Tires on the Front of Formula Vee #26537tyres & wheels
  • EP Re-organize Prep2 Cylinder Head Rules for Clarity & Consistency #27661engine
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
Virginia International Raceway Runoffs 20192019-10-052:00.987Jesse Prather · fastest of 29 · top 5 within 2.2s2:01.631Jesse Prather · fastest of 24 · top 5 within 1.4s147.5Kip Van Steenburg1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s136.2Derek Ketchie+18.843squal -1.424s115.5%qual 98.8%1:55.124Bryce Cornet · fastest of 8 · top 5 within 2.3s2:15.816Bryce Cornet · fastest of 8 · top 5 within 4.9s135.7Bryce Cornet+14.185squal -5.863s111.7%qual 95.2%2:15.712Andrew Whitston · fastest of 26 · top 5 within 1.5s2:18.289Zachary Whitston · fastest of 19 · top 5 within 0.4s114.8Roger Siebenaler+16.658squal +14.725s113.7%qual 112.2%
19 rule changes (EP: 10, FF: 3, FV: 6)4 induction · 3 engine · 2 suspension & brakes · 2 tyres & wheels · 1 cars added · 1 weight · 1 wording · 5 othershowhide
  • FV Allowed Modifications E&O #27398other
  • 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
  • FV E&O Wheels #27230tyres & wheels
  • EP Request Miata Eligibility - 2003 #27121other
  • FV Exhaust termination rule E&O #26702other
  • EP Allow Firewall Modification for Fitment of 13B into RX8 #26726engine
  • FV E&O Dimensions #26674other
  • EP Rollcenter Correction Clarification #25873tyres & wheels
  • EP Hardtops #26476wording
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • EP Request for Competition Adjustment for 2nd Generation RX7 #25935weight -50 lbs
  • FF Request for Oversize Honda Fit Pistons #25810engine
  • FF Heat Shield - Fit Intake #26102induction
  • FF Request catch cans/tanks clarification #26158engine
  • FV FV Intake Manifold Clarification #26008induction
Sonoma Raceway Runoffs 20182018-10-101:45.828Glen McCready · fastest of 18 · top 5 within 4.3s1:46.518Glen McCready · fastest of 16 · top 5 within 2.8s106.5Aaron Downey1:41.612Jonathon Kotyk · fastest of 22 · top 5 within 1.7s1:42.049Jonathon Kotyk · fastest of 22 · top 5 within 1.3s115.7Denny Renfrow-4.469squal -4.216s95.8%qual 96.0%1:37.598Bryce Cornet · fastest of 13 · top 5 within 0.9s1:37.909Bryce Cornet · fastest of 12 · top 5 within 1.3s124.1Melvin David Kemper Jr-8.609squal -8.230s91.9%qual 92.2%1:52.637Skip Streets · fastest of 29 · top 5 within 1.6s1:53.639Alex Scaler · fastest of 28 · top 5 within 0.4s106.3Skip Streets+7.121squal +6.809s106.7%qual 106.4%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:49.597Matt Reynolds · fastest of 44 · top 5 within 1.2s1:50.396Matt Reynolds · fastest of 45 · top 5 within 0.5s1:44.601Zach Holden · fastest of 36 · top 5 within 1.2s1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s-5.872squal -4.996s94.7%qual 95.4%1:41.231Jarret Voorhies · fastest of 16 · top 5 within 1.7s1:41.146Jarret Voorhies · fastest of 16 · top 5 within 1.2s-9.250squal -8.366s91.6%qual 92.4%1:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s+5.527squal +6.162s105.0%qual 105.6%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:33.847Michael Galati · fastest of 25 · top 5 within 0.8s1:34.266Michael Galati · fastest of 23 · top 5 within 1.3s1:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s-4.133squal -4.634s95.6%qual 95.1%1:26.043Jacob Loomis · fastest of 8 · top 5 within 3.1s1:27.922Jacob Loomis · fastest of 8 · top 5 within 2.7s-6.344squal -7.804s93.3%qual 91.7%1:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s+3.800squal +4.095s104.0%qual 104.4%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:03.794Kip Van Steenburg · fastest of 29 · top 5 within 3.2s2:05.109Kip Van Steenburg · fastest of 28 · top 5 within 3.3s2:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s-1.726squal -1.305s98.6%qual 98.9%1:57.804Joseph Burton-Harris · fastest of 10 · top 5 within 2.3s1:58.029Joseph Burton-Harris · fastest of 10 · top 5 within 1.7s-7.080squal -5.990s94.3%qual 95.2%2:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s+16.033squal +17.373s112.8%qual 114.0%

By track

TrackEvents Typical % of EP 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%100.0%Runoffs 2017100.0%Runoffs 2021
Daytona International Speedway1100.0%100.0%Runoffs 2015100.0%Runoffs 2015
Mid-Ohio Sports Car Course1100.0%100.0%Runoffs 2016100.0%Runoffs 2016
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 EP'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.