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BoP Lab / Classes / FV

FV vs SRF vs SM vs FC pace at every track

Lap times across years say as much about the weather as the class. % of FV is each class's best lap as a share of FV'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-SpecEPFAvsFC×FE2FFFPFV×FXGT1GT2GTXHPPP2vsSM×SMXvsSRF×SRF3STLSTUT1T2T3T4Show 50 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FV 100.0% of FV Andrew Whitston, Daytona International Speedway Runoffs 2015 race · SRF 95.1% of FV Cliff White, Daytona International Speedway Runoffs 2015 qualifying · SM 97.4% of FV Brett Kowalski, Road America Runoffs 2026 qualifying · FC 78.5% of FV Brandon Dixon, Road America Runoffs 2026 qualifying

1:402:002:202:4013 rule changes between Runoffs 2018 and Runoffs 201913 ▾17 rule changes between Runoffs 2019 and Runoffs 202017 ▾8 rule changes between Runoffs 2020 and Runoffs 20218 ▾13 rule changes between Runoffs 2021 and Runoffs 202213 ▾7 rule changes between Runoffs 2022 and Runoffs 20237 ▾18 rule changes between Runoffs 2023 and Runoffs 202418 ▾8 rule changes between Runoffs 2024 and Runoffs 20258 ▾7 rule changes between Runoffs 2025 and Runoffs 20267 ▾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)SRF race best at Runoffs 2015: 2:16.700 (Cliff White)SRF race best at Runoffs 2016: 1:37.621 (Todd Harris)SRF race best at Runoffs 2017: 1:53.769 (Todd Harris)SRF qualifying best at Runoffs 2015: 2:14.306 (Cliff White)SRF qualifying best at Runoffs 2016: 1:37.344 (Mike Miserendino)SRF qualifying best at Runoffs 2017: 1:51.573 (Thomas Kirchman)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)FC race best at Runoffs 2015: 1:55.135 (Yufeng Luo)Off the chart: FC race best at Runoffs 2016: 1:22.049 (Nigel Saurino)FC race best at Runoffs 2017: 1:36.890 (Tim Minor)FC race best at Runoffs 2018: 1:34.053 (Mitch Egner)FC race best at Runoffs 2019: 1:52.174 (Robert Allaer)FC race best at Runoffs 2020: 2:13.608 (Robert Allaer)FC race best at Runoffs 2021: 1:36.980 (Simon Sikes)FC race best at Runoffs 2022: 2:07.859 (Nolan Allaer)FC race best at Runoffs 2023: 1:51.169 (Nolan Allaer)FC race best at Runoffs 2024: 2:11.534 (Michael Varacins)FC race best at Runoffs 2025: 2:12.824 (Brandon Dixon)FC race best at Runoffs 2026: 2:11.389 (Brandon Dixon)FC qualifying best at Runoffs 2015: 1:54.477 (Yufeng Luo)Off the chart: FC qualifying best at Runoffs 2016: 1:21.962 (John LaRue)FC qualifying best at Runoffs 2017: 1:36.336 (Austin McCusker)FC qualifying best at Runoffs 2018: 1:32.571 (Timothy de Silva)FC qualifying best at Runoffs 2019: 1:51.200 (Robert Allaer)FC qualifying best at Runoffs 2020: 2:12.644 (Robert Allaer)FC qualifying best at Runoffs 2021: 1:36.787 (Trent Walko)FC qualifying best at Runoffs 2022: 1:49.895 (Nolan Allaer)FC qualifying best at Runoffs 2023: 1:50.281 (Nolan Allaer)FC qualifying best at Runoffs 2024: 2:11.626 (Timothy Minor)FC qualifying best at Runoffs 2025: 2:11.259 (Brandon Dixon)FC qualifying best at Runoffs 2026: 2:10.686 (Brandon Dixon)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
FVSRFSMFCsolid race · dashed qualifying · slower is lower
80%85%90%95%100%105%13 rule changes between Runoffs 2018 and Runoffs 201913 ▾17 rule changes between Runoffs 2019 and Runoffs 202017 ▾8 rule changes between Runoffs 2020 and Runoffs 20218 ▾13 rule changes between Runoffs 2021 and Runoffs 202213 ▾7 rule changes between Runoffs 2022 and Runoffs 20237 ▾18 rule changes between Runoffs 2023 and Runoffs 202418 ▾8 rule changes between Runoffs 2024 and Runoffs 20258 ▾7 rule changes between Runoffs 2025 and Runoffs 20267 ▾FV race best at Runoffs 2015: 100.0% of FV's (Andrew Whitston)FV race best at Runoffs 2016: 100.0% of FV's (Flinn Lazier)FV race best at Runoffs 2017: 100.0% of FV's (Michael Varacins)FV race best at Runoffs 2018: 100.0% of FV's (Alex Scaler)FV race best at Runoffs 2019: 100.0% of FV's (Zachary Whitston)FV race best at Runoffs 2020: 100.0% of FV's (Alex Scaler)FV race best at Runoffs 2021: 100.0% of FV's (Alex Scaler)FV race best at Runoffs 2022: 100.0% of FV's (Andrew Whitston)FV race best at Runoffs 2023: 100.0% of FV's (Andrew Abbott)FV race best at Runoffs 2024: 100.0% of FV's (Andrew Abbott)FV race best at Runoffs 2025: 100.0% of FV's (Zachary Whitston)FV race best at Runoffs 2026: 100.0% of FV's (Brian Farnham)FV qualifying best at Runoffs 2015: 100.0% of FV's (Roger Siebenaler)FV qualifying best at Runoffs 2016: 100.0% of FV's (Alex Scaler)FV qualifying best at Runoffs 2017: 100.0% of FV's (Michael Varacins)FV qualifying best at Runoffs 2018: 100.0% of FV's (Skip Streets)FV qualifying best at Runoffs 2019: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2020: 100.0% of FV's (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2022: 100.0% of FV's (Brian Farnham)FV qualifying best at Runoffs 2023: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2024: 100.0% of FV's (Andrew Whitston)FV qualifying best at Runoffs 2025: 100.0% of FV's (Andrew Abbott)FV qualifying best at Runoffs 2026: 100.0% of FV's (Zachary Whitston)SRF race best at Runoffs 2015: 96.9% of FV's (Cliff White)SRF race best at Runoffs 2016: 99.5% of FV's (Todd Harris)SRF race best at Runoffs 2017: 98.1% of FV's (Todd Harris)SRF qualifying best at Runoffs 2015: 95.1% of FV's (Cliff White)SRF qualifying best at Runoffs 2016: 99.4% of FV's (Mike Miserendino)SRF qualifying best at Runoffs 2017: 96.4% of FV's (Thomas Kirchman)SM race best at Runoffs 2015: 102.1% of FV's (Todd Lamb)SM race best at Runoffs 2016: 102.8% of FV's (Michael Carter)SM race best at Runoffs 2017: 102.7% of FV's (Michael Gagliardo)SM race best at Runoffs 2018: 101.4% of FV's (Michael Carter)SM race best at Runoffs 2019: 98.7% of FV's (Elivan Goulart)SM race best at Runoffs 2020: 98.8% of FV's (Preston Pardus)SM race best at Runoffs 2021: 101.4% of FV's (Brian Henderson)SM race best at Runoffs 2022: 100.7% of FV's (Travis Wiley)SM race best at Runoffs 2023: 99.7% of FV's (Julian DaCosta)SM race best at Runoffs 2024: 98.0% of FV's (Brett Kowalski)SM race best at Runoffs 2025: 98.6% of FV's (Kyle Greenhill)SM race best at Runoffs 2026: 98.5% of FV's (Francisco Barroso)SM qualifying best at Runoffs 2015: 98.2% of FV's (Andrew Carbonell)SM qualifying best at Runoffs 2016: 102.6% of FV's (Justin Hille)SM qualifying best at Runoffs 2017: 102.2% of FV's (Chris Haldeman)SM qualifying best at Runoffs 2018: 101.5% of FV's (Ken Sutherland)SM qualifying best at Runoffs 2019: 99.1% of FV's (Todd Buras)SM qualifying best at Runoffs 2020: 98.9% of FV's (Kyle Greenhill)SM qualifying best at Runoffs 2021: 100.2% of FV's (Brian Henderson)SM qualifying best at Runoffs 2022: 99.7% of FV's (Danny Steyn)SM qualifying best at Runoffs 2023: 99.5% of FV's (Danny Steyn)SM qualifying best at Runoffs 2024: 99.1% of FV's (Ethan Goulart)SM qualifying best at Runoffs 2025: 99.4% of FV's (Bobby Gossett)SM qualifying best at Runoffs 2026: 97.4% of FV's (Brett Kowalski)FC race best at Runoffs 2015: 81.6% of FV's (Yufeng Luo)FC race best at Runoffs 2016: 83.7% of FV's (Nigel Saurino)FC race best at Runoffs 2017: 83.6% of FV's (Tim Minor)FC race best at Runoffs 2018: 82.8% of FV's (Mitch Egner)FC race best at Runoffs 2019: 81.1% of FV's (Robert Allaer)FC race best at Runoffs 2020: 80.6% of FV's (Robert Allaer)FC race best at Runoffs 2021: 82.7% of FV's (Simon Sikes)FC race best at Runoffs 2022: 92.6% of FV's (Nolan Allaer)FC race best at Runoffs 2023: 81.4% of FV's (Nolan Allaer)FC race best at Runoffs 2024: 79.8% of FV's (Michael Varacins)FC race best at Runoffs 2025: 79.7% of FV's (Brandon Dixon)FC race best at Runoffs 2026: 79.5% of FV's (Brandon Dixon)FC qualifying best at Runoffs 2015: 81.1% of FV's (Yufeng Luo)FC qualifying best at Runoffs 2016: 83.7% of FV's (John LaRue)FC qualifying best at Runoffs 2017: 83.2% of FV's (Austin McCusker)FC qualifying best at Runoffs 2018: 82.2% of FV's (Timothy de Silva)FC qualifying best at Runoffs 2019: 81.9% of FV's (Robert Allaer)FC qualifying best at Runoffs 2020: 80.9% of FV's (Robert Allaer)FC qualifying best at Runoffs 2021: 82.4% of FV's (Trent Walko)FC qualifying best at Runoffs 2022: 81.3% of FV's (Nolan Allaer)FC qualifying best at Runoffs 2023: 81.3% of FV's (Nolan Allaer)FC qualifying best at Runoffs 2024: 80.9% of FV's (Timothy Minor)FC qualifying best at Runoffs 2025: 80.0% of FV's (Brandon Dixon)FC qualifying best at Runoffs 2026: 78.5% of FV's (Brandon Dixon)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
FVSRFSMFCsolid race · dashed qualifying · each class's best lap as a share of FV's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFVSRFSMFC
Qual best Race best Trap Qual best Race best Trap vs FV % of FV Qual best Race best Trap vs FV % of FV Qual best Race best Trap vs FV % of FV 
Road America Runoffs 20262026-09-282:46.536Zachary 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%)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%)-2.547squal -4.363s98.5%qual 97.4%2:10.686Brandon Dixon · fastest of 10 · top 5 within 4.0s-0.573s (-0.44%)2:11.389Brandon Dixon · fastest of 10 · top 5 within 2.7s-1.435s (-1.08%)143.3Dean Kiriluk-1.8 mph (-1.2%)-33.883squal -35.850s79.5%qual 78.5%
7 rule changes (SRF: 3, SM: 2, FC: 2)1 suspension & brakes · 1 weight · 1 wording · 4 othershowhide
  • SRF GCR Rain/Brake Light Correction #40579suspension & brakes
  • SM Rear Toe Link #40271other
  • SM Part Number Change Request #39914wording
  • SRF SRF3 Spark Plugs #39899other
  • FC F2000 MZR Spec Line Clarity/Revision Requested #38927other
  • FC Adjust F2000 Metrik ZF2 weight #39612weight -20 lbs
  • SRF Add HD Oil Cooler #38979other
Road America Runoffs 20252025-09-292:44.101Andrew 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%)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%)-2.306squal -0.990s98.6%qual 99.4%2:11.259Brandon Dixon · fastest of 10 · top 5 within 2.7s-0.367s (-0.28%)2:12.824Brandon Dixon · fastest of 9 · top 5 within 2.3s+1.290s (+0.98%)145.1Brandon Dixon+0.9 mph (+0.6%)-33.912squal -32.842s79.7%qual 80.0%
8 rule changes (SRF: 2, SM: 4, FC: 2)2 tyres & wheels · 1 weight · 1 wording · 4 othershowhide
  • SM SMX Data Submission - Penalties #38248other
  • SM SMX Penaly Clarification updated language #38337wording
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • SRF Driver Safety & Comfort #37966other
  • SRF Update SADEV transmission specs #37992other
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • FC 9.1.1.10.h. FC Tire Rule #36533tyres & wheels
  • FC Change FF/FC Weight with Sequential Gearbox #36651weight
Road America Runoffs 20242024-10-012:42.643Andrew 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%)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%)-3.348squal -1.537s98.0%qual 99.1%2:11.626Timothy Minor · fastest of 10 · top 5 within 1.3s-1.018s (-0.77%)2:11.534Michael Varacins · fastest of 9 · top 5 within 1.8s-2.074s (-1.55%)144.2Michael Varacins+1.8 mph (+1.2%)-33.300squal -31.017s79.8%qual 80.9%
18 rule changes (FV: 2, SRF: 10, SM: 4, FC: 2)5 suspension & brakes · 4 tyres & wheels · 3 weight · 1 engine · 2 wording · 3 othershowhide
  • FV Disc Brakes #36822suspension & brakes
  • SRF Update SRF3 Air Filter Rule #36681other
  • SRF Update SRF Brake Rotor Thickness #36687suspension & brakes
  • SRF Hoosier Tire Decal Placement #36739tyres & wheels
  • SM SMX Camera Rule Correction #36496wording
  • SM AIM ECU Protocol #36556engine
  • SM OE versus OEM Definitons #36608other
  • SM Shifter Bushing #36611suspension & brakes
  • SRF Protest Fee Clarification #36540wording
  • SRF Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels
  • SRF Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels
  • FC Four Pot Calipers #35481weight
  • FC Please correct omitted punctuation #34890weight
  • SRF Update SRF Rain / Brake Rule #34706suspension & brakes
  • SRF Update SRF Brake Light Rule v1 #34853suspension & brakes
  • SRF SRF / SRF3 Rule Updates #35268weight
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
  • SRF SRF Radiator Rule Update #34805other
Virginia International Raceway Runoffs 20232023-09-232:15.639Andrew 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%)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%)-0.382squal -0.653s99.7%qual 99.5%1:50.281Nolan Allaer · fastest of 11 · top 5 within 2.3s+0.386s (+0.35%)1:51.169Nolan Allaer · fastest of 11 · top 5 within 2.5s-16.690s (-13.05%)143.5Robert Allaer+2.3 mph (+1.7%)-25.442squal -25.358s81.4%qual 81.3%
7 rule changes (SRF: 3, SM: 1, FC: 3)3 tyres & wheels · 2 weight · 1 engine · 1 suspension & brakesshowhide
  • FC Review FC Runoffs Tire Marking Rule #34274tyres & wheels
  • FC USF2000 Van Diemen with Mazda MZR LF-DE 2.0L in FC #34329weight
  • SRF Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels
  • SRF Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
  • SRF Update SRF Brake Rule #33469suspension & brakes
  • FC E&O 9.1.1.B.16.j #33634engine
  • SM BOP for NB1 and NB2 #32309weight
Virginia International Raceway Runoffs 20222022-09-242:15.116Brian 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%)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%)+1.014squal -0.452s100.7%qual 99.7%1:49.895Nolan Allaer · fastest of 12 · top 5 within 1.5s-1.305s (-1.17%)2:07.859Nolan Allaer · fastest of 13 · top 5 within 3.8s+15.685s (+13.98%)141.2Tim Minor-0.6 mph (-0.4%)-10.234squal -25.221s92.6%qual 81.3%
13 rule changes (FV: 4, SRF: 3, SM: 1, FC: 5)5 weight · 3 engine · 2 suspension & brakes · 2 tyres & wheels · 1 wordingshowhide
  • FC Add Specification to Performance Electronics ECU for Ford Zetec #32761engine
  • SRF SRF Tire Rule Update #32614tyres & wheels
  • SRF Brake, seal, and air filter clarifications #32670suspension & brakes
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • 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
  • FC Clean up Chassis/Frame section #31867engine
  • FV Update direct replacement connecting rod information #31843weight
  • FC Clarify Zetec ECU requirements #31554engine
  • FV Formula V Connecting Rod Replacement #31448weight
  • SRF Three Updates to SRF Rules #31523weight
  • FC Clarify composite anti-intrusion panel language #31426wording
  • FC Clarify tire marking requirements #31455tyres & wheels
Indianapolis Motor Speedway Runoffs 20212021-09-251:57.479Andrew 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 Edwards1:57.695Brian 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+1.603squal +0.216s101.4%qual 100.2%1:36.787Trent Walko · fastest of 31 · top 5 within 1.7s+0.451s (+0.47%)1:36.980Simon Sikes · fastest of 31 · top 5 within 2.0s+0.090s (+0.09%)141.6Tim Minor-20.254squal -20.692s82.7%qual 82.4%
8 rule changes (SRF: 6, SM: 1, FC: 1)2 engine · 2 weight · 1 suspension & brakes · 1 tyres & wheels · 2 othershowhide
  • SRF SRF Wet Tires #30849tyres & wheels
  • SRF SADEV-SRF3 Transmission #30926other
  • SRF SRF Update Maintenance, Repairs and Seals #30961engine
  • SRF SRF3 Alternator Pulley #30684weight
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • FC Request for FC Weight Change #30171weight
  • SRF Mandatory identification: #30223engine
  • SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes
Road America Runoffs 20202020-10-022:43.994Hunter Phelps-Barron · fastest of 28 · top 5 within 0.6s2:45.816Alex Scaler · fastest of 24 · top 5 within 1.5s117.1Hunter Phelps-Barron2:42.209Kyle Greenhill · fastest of 77 · top 5 within 0.5s2:43.748Preston Pardus · fastest of 75 · top 5 within 1.0s121.3Kyle Greenhill-2.068squal -1.785s98.8%qual 98.9%2:12.644Robert Allaer · fastest of 13 · top 5 within 2.1s2:13.608Robert Allaer · fastest of 11 · top 5 within 1.2s142.4Robert Allaer-32.208squal -31.350s80.6%qual 80.9%
17 rule changes (FV: 6, SRF: 5, SM: 2, FC: 4)7 tyres & wheels · 3 engine · 3 suspension & brakes · 2 weight · 1 induction · 1 othershowhide
  • FC Urgent: SCCA PE3 map unsuitable #29475induction
  • SM Radiator E&O Clarifications #29294engine
  • FC Request for weight adjustments to equalize FC competition. #28888weight
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • SRF SRF Bump Stop Correction #27019suspension & brakes
  • FV Update rain tire designation #28444tyres & wheels
  • 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
  • SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • FC Request for Better Zetec Connecting Rods #27710engine
  • FC Add Alternate Piston #27795engine
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
  • SRF SRF Tire Warmer Rule #27622tyres & wheels
  • SRF SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF SRF / SRF3 Majors & Regional Class Updates #27723other
Virginia International Raceway Runoffs 20192019-10-052:15.712Andrew Whitston · fastest of 26 · top 5 within 1.5s2:18.289Zachary Whitston · fastest of 19 · top 5 within 0.4s114.8Roger Siebenaler2:14.552Todd Buras · fastest of 60 · top 5 within 0.2s2:16.459Elivan Goulart · fastest of 56 · top 5 within 0.4s119.8Jim Drago-1.830squal -1.160s98.7%qual 99.1%1:51.200Robert Allaer · fastest of 10 · top 5 within 3.1s1:52.174Robert Allaer · fastest of 9 · top 5 within 2.7s141.8Robert Allaer-26.115squal -24.512s81.1%qual 81.9%
13 rule changes (FV: 6, SRF: 1, SM: 4, FC: 2)3 weight · 2 tyres & wheels · 1 engine · 1 induction · 1 suspension & brakes · 1 wording · 4 othershowhide
  • FV Allowed Modifications E&O #27398other
  • FV E&O Wheels #27230tyres & wheels
  • SRF SRF Dash Windscreen Kit #27028other
  • FV Exhaust termination rule E&O #26702other
  • FC E&O Wiseco piston and Crower connecting rod #26659weight
  • FV E&O Dimensions #26674other
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • SM Request to allow aftermarket fuel filters. #26370wording
  • FV FV Intake Manifold Clarification #26008induction
  • 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
  • FC Correct Wiseco piston and connecting rod #25809weight
Sonoma Raceway Runoffs 20182018-10-101:52.637Skip Streets · fastest of 29 · top 5 within 1.6s1:53.639Alex Scaler · fastest of 28 · top 5 within 0.4s106.3Skip Streets1:54.355Ken Sutherland · fastest of 48 · top 5 within 0.7s1:55.278Michael Carter · fastest of 48 · top 5 within 0.3s102.2Danny Steyn+1.639squal +1.718s101.4%qual 101.5%1:32.571Timothy de Silva · fastest of 16 · top 5 within 1.8s1:34.053Mitch Egner · fastest of 12 · top 5 within 1.6s133.1Robert Armington-19.586squal -20.066s82.8%qual 82.2%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s1:51.573Thomas Kirchman · fastest of 50 · top 5 within 2.8s1:53.769Todd Harris · fastest of 45 · top 5 within 0.2s-2.154squal -4.186s98.1%qual 96.4%1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s+3.177squal +2.547s102.7%qual 102.2%1:36.336Austin McCusker · fastest of 14 · top 5 within 2.3s1:36.890Tim Minor · fastest of 14 · top 5 within 3.8s-19.033squal -19.423s83.6%qual 83.2%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s1:37.344Mike Miserendino · fastest of 27 · top 5 within 0.8s1:37.621Todd Harris · fastest of 27 · top 5 within 0.6s-0.445squal -0.598s99.5%qual 99.4%1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s+2.698squal +2.572s102.8%qual 102.6%1:21.962John LaRue · fastest of 7 · top 5 within 2.6s1:22.049Nigel Saurino · fastest of 7 · top 5 within 3.0s-16.017squal -15.980s83.7%qual 83.7%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s2:14.306Cliff White · fastest of 39 · top 5 within 1.2s2:16.700Cliff White · fastest of 38 · top 5 within 0.5s-4.442squal -6.861s96.9%qual 95.1%2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s+2.925squal -2.506s102.1%qual 98.2%1:54.477Yufeng Luo · fastest of 11 · top 5 within 2.5s1:55.135Yufeng Luo · fastest of 10 · top 5 within 2.1s-26.007squal -26.690s81.6%qual 81.1%

By track

TrackEvents Typical % of FV 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 FV'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.