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BoP Lab / Classes / FA

FA vs AS vs FV vs SMX pace at every track

Lap times across years say as much about the weather as the class. % of FA is each class's best lap as a share of FA'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)
vsAS×B-SpecEPFA×FCFE2FFFPvsFV×FXGT1GT2GTXHPPP2SMvsSMX×SRF3STLSTUT1T2T3T4Show 51 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FA 100.0% of FA Tyler Hunter, Daytona International Speedway Runoffs 2015 race · AS 113.0% of FA Tom Sloe, Daytona International Speedway Runoffs 2015 qualifying · FV 124.1% of FA Flinn Lazier, Mid-Ohio Sports Car Course Runoffs 2016 race · SMX 126.8% of FA Cam Ebben, Road America Runoffs 2026 race

1:201:402:002:202:4017 rule changes between Runoffs 2018 and Runoffs 201917 ▾37 rule changes between Runoffs 2019 and Runoffs 202037 ▾36 rule changes between Runoffs 2020 and Runoffs 202136 ▾20 rule changes between Runoffs 2021 and Runoffs 202220 ▾11 rule changes between Runoffs 2022 and Runoffs 202311 ▾17 rule changes between Runoffs 2023 and Runoffs 202417 ▾19 rule changes between Runoffs 2024 and Runoffs 202519 ▾22 rule changes between Runoffs 2025 and Runoffs 202622 ▾FA race best at Runoffs 2015: 1:48.162 (Tyler Hunter)FA race best at Runoffs 2016: 1:19.009 (Ryan Norman)FA race best at Runoffs 2017: 1:31.365 (Keith Grant)FA race best at Runoffs 2018: 1:29.924 (Mirl Swan)FA race best at Runoffs 2019: 1:43.107 (Dario Cangialosi)FA race best at Runoffs 2020: 2:04.746 (Spencer Brockman)FA race best at Runoffs 2021: 1:30.650 (James French)FA race best at Runoffs 2022: 1:48.507 (Alex Mayer)FA race best at Runoffs 2024: 2:01.790 (Dudley Fleck)FA race best at Runoffs 2025: 2:02.654 (Hans Peter)FA race best at Runoffs 2026: 2:03.334 (James French)FA qualifying best at Runoffs 2015: 1:47.758 (Tyler Hunter)Off the chart: FA qualifying best at Runoffs 2016: 1:14.920 (Ryan Norman)FA qualifying best at Runoffs 2017: 1:29.957 (Sedat Yelkin)FA qualifying best at Runoffs 2018: 1:28.176 (Mirl Swan)FA qualifying best at Runoffs 2019: 1:41.545 (Dario Cangialosi)FA qualifying best at Runoffs 2020: 2:04.274 (Spencer Brockman)FA qualifying best at Runoffs 2021: 1:29.701 (James French)FA qualifying best at Runoffs 2022: 1:44.703 (Chip Romer)FA qualifying best at Runoffs 2024: 2:01.560 (Hans Peter)FA qualifying best at Runoffs 2025: 2:00.923 (Hans Peter)FA qualifying best at Runoffs 2026: 2:02.513 (Dudley Fleck)AS race best at Runoffs 2015: 2:02.922 (Andy McDermid)AS race best at Runoffs 2016: 1:33.424 (Edward Hosni)AS race best at Runoffs 2017: 1:51.507 (Bryan Long)AS race best at Runoffs 2018: 1:50.345 (John Heinricy)AS race best at Runoffs 2019: 2:03.900 (James Jost)AS race best at Runoffs 2020: 2:27.668 (Gregory Eaton)AS race best at Runoffs 2021: 1:50.606 (Gregory Eaton)AS race best at Runoffs 2022: 2:04.578 (Gregory Eaton)AS race best at Runoffs 2023: 2:04.120 (Gregory Eaton)AS race best at Runoffs 2024: 2:26.429 (Gregory Eaton)AS race best at Runoffs 2025: 2:29.232 (Gregory Eaton)AS race best at Runoffs 2026: 2:28.471 (Andrew McDermid)AS qualifying best at Runoffs 2015: 2:01.746 (Tom Sloe)AS qualifying best at Runoffs 2016: 1:30.651 (Tom Sloe)AS qualifying best at Runoffs 2017: 1:45.220 (James Jost)AS qualifying best at Runoffs 2018: 1:47.782 (Andrew McDermid)AS qualifying best at Runoffs 2019: 2:02.938 (Gregory Eaton)AS qualifying best at Runoffs 2020: 2:27.045 (Gregory Eaton)AS qualifying best at Runoffs 2021: 1:50.427 (Drew Cattell)AS qualifying best at Runoffs 2022: 2:02.162 (Kurt Rezzetano)AS qualifying best at Runoffs 2023: 2:03.082 (Daniel Richardson)AS qualifying best at Runoffs 2024: 2:26.578 (Gregory Eaton)AS qualifying best at Runoffs 2025: 2:26.792 (Andrew McDermid)AS qualifying best at Runoffs 2026: 2:26.911 (Andrew McDermid)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)SMX race best at Runoffs 2023: 2:12.616 (Noah Harmon)SMX race best at Runoffs 2024: 2:36.278 (Ethan Jacobs)SMX race best at Runoffs 2025: 2:37.091 (Michael Tinis)SMX race best at Runoffs 2026: 2:36.414 (Cam Ebben)SMX qualifying best at Runoffs 2023: 2:11.435 (Nathan Nicholson)SMX qualifying best at Runoffs 2024: 2:35.651 (Ethan Lampe)SMX qualifying best at Runoffs 2025: 2:36.232 (Cam Ebben)SMX qualifying best at Runoffs 2026: 2:36.472 (Skyler Cottrell)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
FAASFVSMXsolid race · dashed qualifying · slower is lower
100%110%120%130%17 rule changes between Runoffs 2018 and Runoffs 201917 ▾37 rule changes between Runoffs 2019 and Runoffs 202037 ▾36 rule changes between Runoffs 2020 and Runoffs 202136 ▾20 rule changes between Runoffs 2021 and Runoffs 202220 ▾11 rule changes between Runoffs 2022 and Runoffs 202311 ▾17 rule changes between Runoffs 2023 and Runoffs 202417 ▾19 rule changes between Runoffs 2024 and Runoffs 202519 ▾22 rule changes between Runoffs 2025 and Runoffs 202622 ▾FA race best at Runoffs 2015: 100.0% of FA's (Tyler Hunter)FA race best at Runoffs 2016: 100.0% of FA's (Ryan Norman)FA race best at Runoffs 2017: 100.0% of FA's (Keith Grant)FA race best at Runoffs 2018: 100.0% of FA's (Mirl Swan)FA race best at Runoffs 2019: 100.0% of FA's (Dario Cangialosi)FA race best at Runoffs 2020: 100.0% of FA's (Spencer Brockman)FA race best at Runoffs 2021: 100.0% of FA's (James French)FA race best at Runoffs 2022: 100.0% of FA's (Alex Mayer)FA race best at Runoffs 2024: 100.0% of FA's (Dudley Fleck)FA race best at Runoffs 2025: 100.0% of FA's (Hans Peter)FA race best at Runoffs 2026: 100.0% of FA's (James French)FA qualifying best at Runoffs 2015: 100.0% of FA's (Tyler Hunter)FA qualifying best at Runoffs 2016: 100.0% of FA's (Ryan Norman)FA qualifying best at Runoffs 2017: 100.0% of FA's (Sedat Yelkin)FA qualifying best at Runoffs 2018: 100.0% of FA's (Mirl Swan)FA qualifying best at Runoffs 2019: 100.0% of FA's (Dario Cangialosi)FA qualifying best at Runoffs 2020: 100.0% of FA's (Spencer Brockman)FA qualifying best at Runoffs 2021: 100.0% of FA's (James French)FA qualifying best at Runoffs 2022: 100.0% of FA's (Chip Romer)FA qualifying best at Runoffs 2024: 100.0% of FA's (Hans Peter)FA qualifying best at Runoffs 2025: 100.0% of FA's (Hans Peter)FA qualifying best at Runoffs 2026: 100.0% of FA's (Dudley Fleck)AS race best at Runoffs 2015: 113.6% of FA's (Andy McDermid)AS race best at Runoffs 2016: 118.2% of FA's (Edward Hosni)AS race best at Runoffs 2017: 122.0% of FA's (Bryan Long)AS race best at Runoffs 2018: 122.7% of FA's (John Heinricy)AS race best at Runoffs 2019: 120.2% of FA's (James Jost)AS race best at Runoffs 2020: 118.4% of FA's (Gregory Eaton)AS race best at Runoffs 2021: 122.0% of FA's (Gregory Eaton)AS race best at Runoffs 2022: 114.8% of FA's (Gregory Eaton)AS race best at Runoffs 2024: 120.2% of FA's (Gregory Eaton)AS race best at Runoffs 2025: 121.7% of FA's (Gregory Eaton)AS race best at Runoffs 2026: 120.4% of FA's (Andrew McDermid)AS qualifying best at Runoffs 2015: 113.0% of FA's (Tom Sloe)AS qualifying best at Runoffs 2016: 121.0% of FA's (Tom Sloe)AS qualifying best at Runoffs 2017: 117.0% of FA's (James Jost)AS qualifying best at Runoffs 2018: 122.2% of FA's (Andrew McDermid)AS qualifying best at Runoffs 2019: 121.1% of FA's (Gregory Eaton)AS qualifying best at Runoffs 2020: 118.3% of FA's (Gregory Eaton)AS qualifying best at Runoffs 2021: 123.1% of FA's (Drew Cattell)AS qualifying best at Runoffs 2022: 116.7% of FA's (Kurt Rezzetano)AS qualifying best at Runoffs 2024: 120.6% of FA's (Gregory Eaton)AS qualifying best at Runoffs 2025: 121.4% of FA's (Andrew McDermid)AS qualifying best at Runoffs 2026: 119.9% of FA's (Andrew McDermid)FV race best at Runoffs 2015: 130.5% of FA's (Andrew Whitston)FV race best at Runoffs 2016: 124.1% of FA's (Flinn Lazier)FV race best at Runoffs 2017: 126.9% of FA's (Michael Varacins)FV race best at Runoffs 2018: 126.4% of FA's (Alex Scaler)FV race best at Runoffs 2019: 134.1% of FA's (Zachary Whitston)FV race best at Runoffs 2020: 132.9% of FA's (Alex Scaler)FV race best at Runoffs 2021: 129.3% of FA's (Alex Scaler)FV race best at Runoffs 2022: 127.3% of FA's (Andrew Whitston)FV race best at Runoffs 2024: 135.3% of FA's (Andrew Abbott)FV race best at Runoffs 2025: 135.9% of FA's (Zachary Whitston)FV race best at Runoffs 2026: 134.0% of FA's (Brian Farnham)FV qualifying best at Runoffs 2015: 131.0% of FA's (Roger Siebenaler)FV qualifying best at Runoffs 2016: 130.7% of FA's (Alex Scaler)FV qualifying best at Runoffs 2017: 128.7% of FA's (Michael Varacins)FV qualifying best at Runoffs 2018: 127.7% of FA's (Skip Streets)FV qualifying best at Runoffs 2019: 133.6% of FA's (Andrew Whitston)FV qualifying best at Runoffs 2020: 132.0% of FA's (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 131.0% of FA's (Andrew Whitston)FV qualifying best at Runoffs 2022: 129.0% of FA's (Brian Farnham)FV qualifying best at Runoffs 2024: 133.8% of FA's (Andrew Whitston)FV qualifying best at Runoffs 2025: 135.7% of FA's (Andrew Abbott)FV qualifying best at Runoffs 2026: 135.9% of FA's (Zachary Whitston)SMX race best at Runoffs 2024: 128.3% of FA's (Ethan Jacobs)SMX race best at Runoffs 2025: 128.1% of FA's (Michael Tinis)SMX race best at Runoffs 2026: 126.8% of FA's (Cam Ebben)SMX qualifying best at Runoffs 2024: 128.0% of FA's (Ethan Lampe)SMX qualifying best at Runoffs 2025: 129.2% of FA's (Cam Ebben)SMX qualifying best at Runoffs 2026: 127.7% of FA's (Skyler Cottrell)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
FAASFVSMXsolid race · dashed qualifying · each class's best lap as a share of FA's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFAASFVSMX
Qual best Race best Trap Qual best Race best Trap vs FA % of FA Qual best Race best Trap vs FA % of FA Qual best Race best Trap vs FA % of FA 
Road America Runoffs 20262026-09-282:02.513Dudley Fleck · fastest of 9 · top 5 within 6.9s+1.590s (+1.31%)2:03.334James French · fastest of 10 · top 5 within 1.4s+0.680s (+0.55%)158.6John McAleer+1.5 mph (+1.0%)2:26.911Andrew McDermid · fastest of 8 · top 5 within 3.4s+0.119s (+0.08%)2:28.471Andrew McDermid · fastest of 8 · top 5 within 2.4s-0.761s (-0.51%)151.0Andrew McDermid-0.6 mph (-0.4%)+25.137squal +24.398s120.4%qual 119.9%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%)+41.938squal +44.023s134.0%qual 135.9%2:36.472Skyler Cottrell · fastest of 21 · top 5 within 0.4s+0.240s (+0.15%)2:36.414Cam Ebben · fastest of 21 · top 5 within 1.1s-0.677s (-0.43%)128.4Christian Hoagland-0.6 mph (-0.5%)+33.080squal +33.959s126.8%qual 127.7%
22 rule changes (FA: 7, AS: 13, SMX: 2)6 weight · 5 engine · 4 induction · 2 tyres & wheels · 1 removed · 1 wording · 3 othershowhide
  • AS 2016+ Camaro Spec Line Full Prep #39646tyres & wheels
  • AS Consideration of Pirelli P Zero Trofeo Track for AS Competition #40495tyres & wheels
  • AS Change in 9.1.6.D.4.d.5 in Suspension Mounting Points #40094other
  • AS Re-Add 4.6L 4v 96-04 Mustang Cobra #40239weight
  • AS Errors and Omissions #40532weight
  • FA Update sealed engine teardown section #40621engine
  • SMX Rear Toe Link #40271other
  • AS Clarification for LM7 Holley Carburetor #40167engine
  • FA Motor Classification #40175weight
  • AS Header Information Update for EFI Engine Build Sheets #39886engine
  • AS Errors and Omissions #39933weight
  • SMX Part Number Change Request #39914wording
  • AS Re-Organization of AS Spec lines for 2026 #39887removed
  • AS Edelbrock manifold (& timing kit) to Chevy LS Spec Lines Request #39055weight
  • FA Pro Mazda Classification and Performance Enhancement Proposal #39411induction
  • AS Restrictor Plate Change for Gen 2 Ford Coyote Engine #39501induction
  • FA Alternate Intake Manifold for MZR #38223induction
  • FA Engine Compression Rule Change Request #39302engine
  • FA Change Formula 1000 allowances #39608induction
  • AS 1994 Mustang Spec Line Request #39104engine
  • AS Cadillac CTS-V BOP Weight Change #38640weight -50 lbs
  • FA Re-Consider USF Pro 2000 Car for Formula Atlantic Class #38783other
Road America Runoffs 20252025-09-292:00.923Hans Peter · fastest of 12 · top 5 within 2.4s-0.637s (-0.52%)2:02.654Hans Peter · fastest of 11 · top 5 within 3.1s+0.864s (+0.71%)157.0Shane Kennett-3.0 mph (-1.9%)2:26.792Andrew McDermid · fastest of 11 · top 5 within 3.9s+0.214s (+0.15%)2:29.232Gregory Eaton · fastest of 10 · top 5 within 4.0s+2.803s (+1.91%)151.5Andrew McDermid+1.9 mph (+1.3%)+26.578squal +25.869s121.7%qual 121.4%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%)+44.082squal +43.178s135.9%qual 135.7%2:36.232Cam Ebben · fastest of 20 · top 5 within 0.2s+0.581s (+0.37%)2:37.091Michael Tinis · fastest of 19 · top 5 within 0.3s+0.813s (+0.52%)129.1Camden Gruber-0.4 mph (-0.3%)+34.437squal +35.309s128.1%qual 129.2%
19 rule changes (FA: 3, AS: 11, SMX: 5)5 engine · 3 tyres & wheels · 3 weight · 2 induction · 1 cars added · 1 wording · 4 othershowhide
  • AS RE: Previous Letter 37695 Update #38245weight -75 lbs
  • FA Ligier JS F3 Tire Choice #38434tyres & wheels
  • AS Errors and Omissions #38234engine
  • SMX SMX Data Submission - Penalties #38248other
  • SMX SMX Penaly Clarification updated language #38337wording
  • AS Errors and Omission #38055induction
  • AS Request to Add LS1/LS6 Intakes for 5.3L Truck Engine EnO #38197engine
  • SMX Clarify Tire Marking Regs #38004tyres & wheels
  • SMX SMX Data Submission Timeframe #38039other
  • AS Flotek Head Plunge Cut Inconsistencies #37502other
  • AS Notes clean up #37693weight
  • AS Race memo #37902engine
  • FA Update Formula Renault 2.0 spec line notes #37853tyres & wheels
  • FA Classify FR European Championship car as spec line car in Table 2 #37658cars added
  • AS Increase Coyote Engine Restrictor to 80mm #36177induction
  • AS Performance Pack for 2015+ Mustang #36867weight
  • AS Gear Ratios #37131engine
  • AS ECU specs for LS engine #37208engine
  • SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
Road America Runoffs 20242024-10-012:01.560Hans Peter · fastest of 13 · top 5 within 2.0s-2.714s (-2.18%)2:01.790Dudley Fleck · fastest of 12 · top 5 within 3.3s-2.956s (-2.37%)160.0Brandon Schwarz+9.4 mph (+6.3%)2:26.578Gregory Eaton · fastest of 18 · top 5 within 2.6s-0.467s (-0.32%)2:26.429Gregory Eaton · fastest of 18 · top 5 within 2.5s-1.239s (-0.84%)149.6Gregory Eaton+0.4 mph (+0.3%)+24.639squal +25.018s120.2%qual 120.6%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%)+43.044squal +41.083s135.3%qual 133.8%2:35.651Ethan Lampe · fastest of 23 · top 5 within 0.7s2:36.278Ethan Jacobs · fastest of 22 · top 5 within 0.7s129.5Michael Borden+34.488squal +34.091s128.3%qual 128.0%
17 rule changes (AS: 11, FV: 2, SMX: 4)6 cars added · 2 engine · 2 suspension & brakes · 2 tyres & wheels · 1 wording · 4 othershowhide
  • FV Disc Brakes #36822suspension & brakes
  • AS Mustang transmission ratios #36662engine
  • SMX SMX Camera Rule Correction #36496wording
  • SMX AIM ECU Protocol #36556engine
  • SMX OE versus OEM Definitons #36608other
  • SMX Shifter Bushing #36611suspension & brakes
  • AS Request for Classification of 2018-2023 mustang In #35764cars added
  • AS 6th gen Camaro limited prep #35733cars added
  • AS Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V8 LS1 Alum BLK #35825cars added
  • AS Full Prep Head #35891other
  • AS Restricted Prep Aftermarket Parts Request #35682other
  • AS Allowance of 11 #35824tyres & wheels
  • AS Request to Classify 1970-1981 Camaro and Firebird in AS #33659cars added
  • AS Fuel Cell 12 #34194other
  • AS Please Classify the 6th Gen Into AS. #35448cars added
  • AS spec lines #35713cars added
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
Virginia International Raceway Runoffs 20232023-09-232:03.082Daniel Richardson · fastest of 11 · top 5 within 2.2s+0.920s (+0.75%)2:04.120Gregory Eaton · fastest of 9 · top 5 within 3.0s-0.458s (-0.37%)154.6James Jost+3.7 mph (+2.5%)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%)2:11.435Nathan Nicholson · fastest of 18 · top 5 within 0.6s2:12.616Noah Harmon · fastest of 16 · top 5 within 0.1s127.8Noah Harmon
11 rule changes (FA: 7, AS: 4)3 engine · 3 tyres & wheels · 2 induction · 1 suspension & brakes · 1 weight · 1 othershowhide
  • AS Crate Motor Part Numbers #32944engine
  • AS Request wheel size change #33007tyres & wheels
  • AS Alternative Upper Front Control Arms for Dodge Challenger #33352engine
  • AS Front Brake Caliper Adapters for Dodge Challenger #33353suspension & brakes
  • FA Simplify Pro Formula Mazda wheel allowance #34190tyres & wheels
  • FA E&O - Correct Pro Formula Mazda spec line dimensional equivalent #34085tyres & wheels
  • FA Add new spec line for MSR Formula Mazda FMzR to Table 2 #34139other
  • FA BDA Displacement #33431engine
  • FA Reclassify 2010-2017 Formula Renault 2.0 as a spec line car in FA #33395weight
  • FA Change Swift 016 2.3L restrictor size and minimum weight #33472induction -30 lbs
  • FA Pro Formula Mazda Dimension E&O #33160induction
Virginia International Raceway Runoffs 20222022-09-241:44.703Chip Romer · fastest of 7 · top 5 within 4.0s+3.158s (+3.11%)1:48.507Alex Mayer · fastest of 4 · top 4 within 4.2s+5.400s (+5.24%)154.6Austin Hill-1.4 mph (-0.9%)2:02.162Kurt Rezzetano · fastest of 13 · top 5 within 2.3s-0.776s (-0.63%)2:04.578Gregory Eaton · fastest of 11 · top 5 within 2.9s+0.678s (+0.55%)150.9James Jost-3.0 mph (-2.0%)+16.071squal +17.459s114.8%qual 116.7%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%)+29.586squal +30.413s127.3%qual 129.0%
20 rule changes (FA: 7, AS: 9, FV: 4)7 weight · 4 engine · 1 aero · 1 suspension & brakes · 1 tyres & wheels · 2 wording · 4 othershowhide
  • AS Request to add Hoosier W2 #33031other
  • AS correction of Dodge Challenger specification line #33151wording
  • AS Request CTS-V Spec Line Error Correction #30242weight
  • FA Update FR Americas rulebook requirement #32491engine
  • FA Clarify verification of sealed engine compliance #32522engine
  • FA Clarify Formula Lites and FR Americas sealed engine requirement #32523engine
  • FA E&O FA Transmission section #32251tyres & wheels
  • FA E&O Swift 016 2.5 liter Aero column #32363aero
  • FA Closing the Gap #31934other
  • 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
  • FA Reorganize Tables 1 and 2 #31985weight
  • AS Proposed Revisions to SCCA GCR 2021 Appendix M, Part 3 #30295other
  • AS specification line consolidation and correction #31846wording
  • AS correction of SMG specification line #31847suspension & brakes
  • AS Alternate cylinder heads for full prep engine builds - Evaluation #31851engine
  • FV Update direct replacement connecting rod information #31843weight
  • FV Formula V Connecting Rod Replacement #31448weight
  • AS Request for adjustable Front Upper Control Arms on 4th Gen F-Body #30457other
  • AS Request Pontiac GTO tire size change #30881weight
Indianapolis Motor Speedway Runoffs 20212021-09-251:29.701James French · fastest of 18 · top 5 within 2.7s-0.256s (-0.28%)1:30.650James French · fastest of 17 · top 5 within 6.1s-0.715s (-0.78%)155.5James French1:50.427Drew Cattell · fastest of 31 · top 5 within 1.9s+5.207s (+4.95%)1:50.606Gregory Eaton · fastest of 28 · top 5 within 1.7s-0.901s (-0.81%)153.8James Jost+19.956squal +20.726s122.0%qual 123.1%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+26.584squal +27.778s129.3%qual 131.0%
36 rule changes (FA: 22, AS: 14)12 weight · 9 engine · 4 cars added · 2 induction · 2 removed · 1 tyres & wheels · 3 wording · 3 othershowhide
  • FA E&O Table 2 engine names #31085engine
  • FA Move Toyota 1800 to Table 2 #30822removed
  • FA E&O Swift 016 wheel width reference #30939tyres & wheels
  • FA Update FA rules package #30717engine
  • FA Move Mazda MZR/Ford Duratec 2296cc and 2500cc to Table 2 #30718removed
  • FA Clean up Table 2 Mazda MZR 2.0L and Honda Civic K20Z3 spec lines #30719other
  • AS Request CTS-V Spec Line Error Correction #30242weight
  • AS Request to consolidate SN95 Mustang '94-'04 Mustang spec lines #30428cars added
  • AS American Sedan Transmission Rule Change Request #30595weight
  • AS Correction to specifications inadvertently deleted #30691wording
  • AS weight adjustments #30700weight +50 lbs
  • FA E&O Mazda MZR 2.0 and Honda Civic K20Z3 chassis eligibility #30632other
  • FA Correct engine name in Swift 016 2.3 liter spec line #30447engine
  • FA Correct engine name in Swift 016 2.5 liter spec line #30448engine
  • FA Revise Table 1 Spec Lines and clarify application of Engine Notes #30456engine
  • FA Update Table 1 Weights for Spec Lines C, I, and K #30355weight -25 lbs
  • FA Remove redundant reference in Table 2 spec line #30366weight
  • FA Correct the name of the FR Americas car #30369wording
  • FA Clean up Spec Line D in Table 1 #30372weight
  • FA Table 2 Honda K20Z3 request #30386induction
  • AS AS Mustang LP 4.6 3V Classification Transmission Request #29886weight
  • AS Request CF driveshaft on CTS-V for durability improvement #30117engine
  • AS Adjustment to model years of 5th generation RP Camaro #30348engine
  • FA E&O FA Intake Restrictors #30273induction
  • FA Clean up Spec Lines A and B in Table 1 #30274weight
  • FA Clean up Spec Line C in Table 1 #30275weight
  • FA Clean up Spec Lines J and L in Table 1 #30276weight
  • FA Move engine specifications to Pro Formula Mazda spec line notes #30278engine
  • FA Update F3 Americas spec line #30280other
  • AS Request for 2015 -2017 Ford Mustang Spec Line #29514cars added
  • AS Request Trunk lid / Rear Hatch clarification #29591wording
  • AS Common Weight for CTS-V Tire #29759weight
  • AS Correction to specifications inadvertently deleted #30041cars added
  • FA Request to classify Formula Lites Crawford FL15 #29702cars added
  • AS Request Additional Engine Options for Dodge Challenger Spec Line #29543engine
  • AS Rule simplification spec line communization #29824weight
Road America Runoffs 20202020-10-022:04.274Spencer Brockman · fastest of 11 · top 5 within 2.7s2:04.746Spencer Brockman · fastest of 10 · top 5 within 2.4s150.6Hans Peter2:27.045Gregory Eaton · fastest of 18 · top 5 within 0.6s2:27.668Gregory Eaton · fastest of 15 · top 5 within 1.5s149.2Gregory Eaton+22.922squal +22.771s118.4%qual 118.3%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+41.070squal +39.720s132.9%qual 132.0%
37 rule changes (FA: 15, AS: 16, FV: 6)10 tyres & wheels · 7 engine · 4 induction · 4 weight · 2 aero · 2 cars added · 2 suspension & brakes · 1 removed · 5 othershowhide
  • AS Dodge Challenger AS Spec Line Clarification #28698induction
  • AS Dodge Challenger AS Spec Line Clarification #2 #28699aero
  • AS Support for R-Type Specification Tires #27450tyres & wheels
  • AS Spec Tire Request #27519tyres & wheels
  • AS Restrictor Plate Change for RP 2011+ Mustang with Coyote Engine #27675induction
  • AS 2005-2009 Restricted Prep 4.6 3V #27908engine
  • AS Request for 2005-2009 Restricted Prep 4.6 3V Parts #27909engine
  • AS Request for Full Preparation Classification for 2010-2014 Camaro #28030other
  • AS Cylinder Heads #28696engine
  • AS Request for Max Rotor Diameter Change #28748suspension & brakes
  • AS Request increase rotor diameter #28797other
  • FA Request to Adjust FB Weight for Stock Engines #29005weight
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • FA E&O permitted engine modifications #28831engine
  • FA E&O Transmissions #28832other
  • FA Swift 016 Gurney flap wicker clarification #28884aero
  • AS weight adjustments for 2020 season #28785weight -50 lbs
  • FA Remove redundant spec line in Table 1 #28720removed
  • FA E&O general engine rules #28772engine
  • FA Request higher compression ratio and prior weights for F1000 cars #28162engine
  • FA Remove redundant wheel dimension provisions #28554tyres & wheels
  • FA E&O Formula 3 spec line #28596induction
  • FA FA weight correction/clarification #28430engine
  • FV Update rain tire designation #28444tyres & wheels
  • AS Rear Trailing Arms #28007suspension & brakes
  • AS Weight reduction for cars running iron heads #28010weight
  • AS 05-10 Mustang with HR cam classification #28226cars added
  • AS 10-15 Camaro Full Prep classification #28227cars added
  • FA Request to merge FB into FA #25611weight
  • FA Suggestions for FB/F1000 into FA #27319other
  • FA Change Swift 016 - 2.3 liter Mazda Duratec restrictor size #27880induction
  • 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
  • FA Move wheel dimensions from Bodywork subsection to #27493tyres & wheels
  • FA Table 2 Mazda MZR 2.0 E&O #27640other
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
Virginia International Raceway Runoffs 20192019-10-051:41.545Dario Cangialosi · fastest of 8 · top 5 within 2.8s1:43.107Dario Cangialosi · fastest of 8 · top 5 within 1.8s155.9Kent Vaccaro2:02.938Gregory Eaton · fastest of 17 · top 5 within 0.8s2:03.900James Jost · fastest of 16 · top 5 within 2.1s153.9James Jost+20.793squal +21.393s120.2%qual 121.1%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+35.182squal +34.167s134.1%qual 133.6%
17 rule changes (FA: 7, AS: 4, FV: 6)4 weight · 2 engine · 2 suspension & brakes · 1 cars added · 1 induction · 1 removed · 1 tyres & wheels · 5 othershowhide
  • AS Request to add SMG to 9.1.6.B.1 AS Intent #27140other
  • FA Follow up to Letter #27344 on Honda Powered FA Rules #27363removed
  • FV Allowed Modifications E&O #27398other
  • FA Swift 014 Mazda MZR 2.0 E&O #27305weight
  • FV E&O Wheels #27230tyres & wheels
  • AS Request Ride Height Clarification #26598suspension & brakes
  • AS Request to Revert to 2017 Weights #25885weight
  • FA Adjust Line N restrictor size and minimum weight #26691weight +30 lbs
  • FV Exhaust termination rule E&O #26702other
  • FA Add data plate requirement #26707other
  • FV E&O Dimensions #26674other
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • FA Request to add FA engine spec lines #26183engine
  • AS SMG Mustang eligibility in American sedan #26224cars added
  • FA FA MZR 2.0 Engine Specification #25814engine
  • FA FA 016 weight increase #26063weight
  • FV FV Intake Manifold Clarification #26008induction
Sonoma Raceway Runoffs 20182018-10-101:28.176Mirl Swan · fastest of 7 · top 5 within 4.0s1:29.924Mirl Swan · fastest of 7 · top 5 within 2.6s144.8Antony Opheim1:47.782Andrew McDermid · fastest of 12 · top 5 within 1.9s1:50.345John Heinricy · fastest of 10 · top 5 within 2.3s105.0Kevin Fandozzi+20.421squal +19.606s122.7%qual 122.2%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+23.715squal +24.461s126.4%qual 127.7%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:29.957Sedat Yelkin · fastest of 12 · top 5 within 2.3s1:31.365Keith Grant · fastest of 12 · top 5 within 1.0s1:45.220James Jost · fastest of 29 · top 5 within 6.7s1:51.507Bryan Long · fastest of 28 · top 5 within 0.9s+20.142squal +15.263s122.0%qual 117.0%1:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s+24.558squal +25.802s126.9%qual 128.7%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:14.920Ryan Norman · fastest of 5 · top 5 within 7.0s1:19.009Ryan Norman · fastest of 5 · top 5 within 4.7s1:30.651Tom Sloe · fastest of 22 · top 5 within 3.6s1:33.424Edward Hosni · fastest of 20 · top 5 within 1.0s+14.415squal +15.731s118.2%qual 121.0%1:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s+19.057squal +23.022s124.1%qual 130.7%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-211:47.758Tyler Hunter · fastest of 10 · top 5 within 3.7s1:48.162Tyler Hunter · fastest of 8 · top 5 within 5.3s2:01.746Tom Sloe · fastest of 22 · top 5 within 2.6s2:02.922Andy McDermid · fastest of 19 · top 5 within 2.2s+14.760squal +13.988s113.6%qual 113.0%2:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s+32.980squal +33.409s130.5%qual 131.0%

By track

TrackEvents Typical % of FA Best Latest 
Road America4100.0%100.0%Runoffs 2020100.0%Runoffs 2026
Virginia International Raceway3100.0%2 of 3 with FA100.0%Runoffs 2019100.0%Runoffs 2022
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 FA'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.