BoP Labbeta

BoP Lab / Classes / FA

FA vs FE2 vs SM vs AS 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×FCvsFE2×FFFPFVFXGT1GT2GTXHPPP2vsSM×SMXSRF3STLSTUT1T2T3T4Show 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 · FE2 105.9% of FA Charles Russell Turner, Virginia International Raceway Runoffs 2022 qualifying · SM 127.5% of FA Michael Carter, Mid-Ohio Sports Car Course Runoffs 2016 race · AS 113.0% of FA Tom Sloe, Daytona International Speedway Runoffs 2015 qualifying

1:402:002:202:4015 rule changes between Runoffs 2018 and Runoffs 201915 ▾35 rule changes between Runoffs 2019 and Runoffs 202035 ▾37 rule changes between Runoffs 2020 and Runoffs 202137 ▾17 rule changes between Runoffs 2021 and Runoffs 202217 ▾12 rule changes between Runoffs 2022 and Runoffs 202312 ▾15 rule changes between Runoffs 2023 and Runoffs 202415 ▾19 rule changes between Runoffs 2024 and Runoffs 202519 ▾23 rule changes between Runoffs 2025 and Runoffs 202623 ▾FA race best at Runoffs 2015: 1:48.162 (Tyler Hunter)Off the chart: 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)FE2 race best at Runoffs 2018: 1:35.563 (Flinn Lazier)FE2 race best at Runoffs 2019: 1:52.154 (Liam Snyder)FE2 race best at Runoffs 2020: 2:13.271 (Owen McAllister)FE2 race best at Runoffs 2021: 1:36.655 (Max Grau)FE2 race best at Runoffs 2022: 2:12.045 (Jason Conzo)FE2 race best at Runoffs 2023: 1:51.098 (Franklin Futrelle)FE2 race best at Runoffs 2024: 2:12.748 (Porter Aiken)FE2 race best at Runoffs 2025: 2:13.339 (Franklin Futrelle)FE2 race best at Runoffs 2026: 2:11.881 (Franklin Futrelle)FE2 qualifying best at Runoffs 2018: 1:35.040 (Flinn Lazier)FE2 qualifying best at Runoffs 2019: 1:51.062 (Liam Snyder)FE2 qualifying best at Runoffs 2020: 2:12.806 (Scott Rettich)FE2 qualifying best at Runoffs 2021: 1:36.395 (Max Grau)FE2 qualifying best at Runoffs 2022: 1:50.853 (Charles Russell Turner)FE2 qualifying best at Runoffs 2023: 1:50.665 (Charles Russell Turner)FE2 qualifying best at Runoffs 2024: 2:11.506 (Porter Aiken)FE2 qualifying best at Runoffs 2025: 2:12.475 (Franklin Futrelle)FE2 qualifying best at Runoffs 2026: 2:12.326 (Franklin Futrelle)SM race best at Runoffs 2015: 2:24.067 (Todd Lamb)SM race best at Runoffs 2016: 1:40.764 (Michael Carter)SM race best at Runoffs 2017: 1:59.100 (Michael Gagliardo)SM race best at Runoffs 2018: 1:55.278 (Michael Carter)SM race best at Runoffs 2019: 2:16.459 (Elivan Goulart)SM race best at Runoffs 2020: 2:43.748 (Preston Pardus)SM race best at Runoffs 2021: 1:58.837 (Brian Henderson)SM race best at Runoffs 2022: 2:19.107 (Travis Wiley)SM race best at Runoffs 2023: 2:16.229 (Julian DaCosta)SM race best at Runoffs 2024: 2:41.486 (Brett Kowalski)SM race best at Runoffs 2025: 2:44.430 (Kyle Greenhill)SM race best at Runoffs 2026: 2:42.725 (Francisco Barroso)SM qualifying best at Runoffs 2015: 2:18.661 (Andrew Carbonell)SM qualifying best at Runoffs 2016: 1:40.514 (Justin Hille)SM qualifying best at Runoffs 2017: 1:58.306 (Chris Haldeman)SM qualifying best at Runoffs 2018: 1:54.355 (Ken Sutherland)SM qualifying best at Runoffs 2019: 2:14.552 (Todd Buras)SM qualifying best at Runoffs 2020: 2:42.209 (Kyle Greenhill)SM qualifying best at Runoffs 2021: 1:57.695 (Brian Henderson)SM qualifying best at Runoffs 2022: 2:14.664 (Danny Steyn)SM qualifying best at Runoffs 2023: 2:14.986 (Danny Steyn)SM qualifying best at Runoffs 2024: 2:41.106 (Ethan Goulart)SM qualifying best at Runoffs 2025: 2:43.111 (Bobby Gossett)SM qualifying best at Runoffs 2026: 2:42.173 (Brett Kowalski)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)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
FAFE2SMASsolid race · dashed qualifying · slower is lower
100%110%120%130%15 rule changes between Runoffs 2018 and Runoffs 201915 ▾35 rule changes between Runoffs 2019 and Runoffs 202035 ▾37 rule changes between Runoffs 2020 and Runoffs 202137 ▾17 rule changes between Runoffs 2021 and Runoffs 202217 ▾12 rule changes between Runoffs 2022 and Runoffs 202312 ▾15 rule changes between Runoffs 2023 and Runoffs 202415 ▾19 rule changes between Runoffs 2024 and Runoffs 202519 ▾23 rule changes between Runoffs 2025 and Runoffs 202623 ▾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)FE2 race best at Runoffs 2018: 106.3% of FA's (Flinn Lazier)FE2 race best at Runoffs 2019: 108.8% of FA's (Liam Snyder)FE2 race best at Runoffs 2020: 106.8% of FA's (Owen McAllister)FE2 race best at Runoffs 2021: 106.6% of FA's (Max Grau)FE2 race best at Runoffs 2022: 121.7% of FA's (Jason Conzo)FE2 race best at Runoffs 2024: 109.0% of FA's (Porter Aiken)FE2 race best at Runoffs 2025: 108.7% of FA's (Franklin Futrelle)FE2 race best at Runoffs 2026: 106.9% of FA's (Franklin Futrelle)FE2 qualifying best at Runoffs 2018: 107.8% of FA's (Flinn Lazier)FE2 qualifying best at Runoffs 2019: 109.4% of FA's (Liam Snyder)FE2 qualifying best at Runoffs 2020: 106.9% of FA's (Scott Rettich)FE2 qualifying best at Runoffs 2021: 107.5% of FA's (Max Grau)FE2 qualifying best at Runoffs 2022: 105.9% of FA's (Charles Russell Turner)FE2 qualifying best at Runoffs 2024: 108.2% of FA's (Porter Aiken)FE2 qualifying best at Runoffs 2025: 109.6% of FA's (Franklin Futrelle)FE2 qualifying best at Runoffs 2026: 108.0% of FA's (Franklin Futrelle)SM race best at Runoffs 2015: 133.2% of FA's (Todd Lamb)SM race best at Runoffs 2016: 127.5% of FA's (Michael Carter)SM race best at Runoffs 2017: 130.4% of FA's (Michael Gagliardo)SM race best at Runoffs 2018: 128.2% of FA's (Michael Carter)SM race best at Runoffs 2019: 132.3% of FA's (Elivan Goulart)SM race best at Runoffs 2020: 131.3% of FA's (Preston Pardus)SM race best at Runoffs 2021: 131.1% of FA's (Brian Henderson)SM race best at Runoffs 2022: 128.2% of FA's (Travis Wiley)SM race best at Runoffs 2024: 132.6% of FA's (Brett Kowalski)SM race best at Runoffs 2025: 134.1% of FA's (Kyle Greenhill)SM race best at Runoffs 2026: 131.9% of FA's (Francisco Barroso)SM qualifying best at Runoffs 2015: 128.7% of FA's (Andrew Carbonell)SM qualifying best at Runoffs 2016: 134.2% of FA's (Justin Hille)SM qualifying best at Runoffs 2017: 131.5% of FA's (Chris Haldeman)SM qualifying best at Runoffs 2018: 129.7% of FA's (Ken Sutherland)SM qualifying best at Runoffs 2019: 132.5% of FA's (Todd Buras)SM qualifying best at Runoffs 2020: 130.5% of FA's (Kyle Greenhill)SM qualifying best at Runoffs 2021: 131.2% of FA's (Brian Henderson)SM qualifying best at Runoffs 2022: 128.6% of FA's (Danny Steyn)SM qualifying best at Runoffs 2024: 132.5% of FA's (Ethan Goulart)SM qualifying best at Runoffs 2025: 134.9% of FA's (Bobby Gossett)SM qualifying best at Runoffs 2026: 132.4% of FA's (Brett Kowalski)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)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
FAFE2SMASsolid 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
EventFAFE2SMAS
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%)2:12.326Franklin Futrelle · fastest of 8 · top 5 within 1.9s-0.149s (-0.11%)2:11.881Franklin Futrelle · fastest of 8 · top 5 within 1.6s-1.458s (-1.09%)143.5Steve Whitston-5.5 mph (-3.7%)+8.547squal +9.813s106.9%qual 108.0%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%)+39.391squal +39.660s131.9%qual 132.4%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%
23 rule changes (FA: 7, FE2: 1, SM: 2, AS: 13)6 weight · 5 engine · 4 induction · 2 tyres & wheels · 1 removed · 1 wording · 4 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
  • SM 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
  • SM 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
  • FE2 FE & FE2 Bubble Tail #38978other
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%)2:12.475Franklin Futrelle · fastest of 11 · top 5 within 1.4s+0.969s (+0.74%)2:13.339Franklin Futrelle · fastest of 10 · top 5 within 0.6s+0.591s (+0.45%)149.0Steve Whitston+3.7 mph (+2.6%)+10.685squal +11.552s108.7%qual 109.6%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%)+41.776squal +42.188s134.1%qual 134.9%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%
19 rule changes (FA: 3, FE2: 1, SM: 4, AS: 11)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
  • SM SMX Data Submission - Penalties #38248other
  • SM 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
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • AS Flotek Head Plunge Cut Inconsistencies #37502other
  • AS Notes clean up #37693weight
  • FE2 Driver Safety & Comfort #37965other
  • 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
  • SM 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%)2:11.506Porter Aiken · fastest of 18 · top 5 within 0.5s-1.300s (-0.98%)2:12.748Porter Aiken · fastest of 17 · top 5 within 2.0s-0.523s (-0.39%)145.3Porter Aiken+1.9 mph (+1.3%)+10.958squal +9.946s109.0%qual 108.2%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%)+39.696squal +39.546s132.6%qual 132.5%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%
15 rule changes (SM: 4, AS: 11)6 cars added · 2 engine · 1 suspension & brakes · 1 tyres & wheels · 1 wording · 4 othershowhide
  • AS Mustang transmission ratios #36662engine
  • SM SMX Camera Rule Correction #36496wording
  • SM AIM ECU Protocol #36556engine
  • SM OE versus OEM Definitons #36608other
  • SM 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
Virginia International Raceway Runoffs 20232023-09-231:50.665Charles Russell Turner · fastest of 26 · top 5 within 2.3s-0.188s (-0.17%)1:51.098Franklin Futrelle · fastest of 19 · top 5 within 1.4s-20.947s (-15.86%)141.3Franklin Futrelle-0.6 mph (-0.4%)2:14.986Danny Steyn · fastest of 52 · top 5 within 0.1s+0.322s (+0.24%)2:16.229Julian DaCosta · fastest of 46 · top 5 within 0.3s-2.878s (-2.07%)120.3Jim Drago+1.1 mph (+0.9%)2:03.082Daniel 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%)
12 rule changes (FA: 7, SM: 1, AS: 4)3 engine · 3 tyres & wheels · 2 induction · 2 weight · 1 suspension & brakes · 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
  • SM BOP for NB1 and NB2 #32309weight
  • 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%)1:50.853Charles Russell Turner · fastest of 25 · top 5 within 1.1s-0.209s (-0.19%)2:12.045Jason Conzo · fastest of 22 · top 5 within 1.8s+19.891s (+17.74%)141.9Eric Cruz-0.6 mph (-0.5%)+23.538squal +6.150s121.7%qual 105.9%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%)+30.600squal +29.961s128.2%qual 128.6%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%
17 rule changes (FA: 7, SM: 1, AS: 9)4 engine · 3 weight · 2 suspension & brakes · 1 aero · 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
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • FA Closing the Gap #31934other
  • 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
  • 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 French1:36.395Max Grau · fastest of 28 · top 5 within 0.7s1:36.655Max Grau · fastest of 28 · top 5 within 0.7s146.2Gray Fowler+6.005squal +6.694s106.6%qual 107.5%1:57.695Brian Henderson · fastest of 90 · top 5 within 0.5s-0.611s (-0.52%)1:58.837Brian Henderson · fastest of 88 · top 5 within 0.3s-0.263s (-0.22%)119.8Kyle Greenhill+28.187squal +27.994s131.1%qual 131.2%1:50.427Drew 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%
37 rule changes (FA: 22, SM: 1, AS: 14)12 weight · 9 engine · 4 cars added · 2 induction · 2 removed · 1 tyres & wheels · 3 wording · 4 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
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • 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 Peter2:12.806Scott Rettich · fastest of 25 · top 5 within 0.6s2:13.271Owen McAllister · fastest of 23 · top 5 within 0.7s143.4Owen McAllister+8.525squal +8.532s106.8%qual 106.9%2:42.209Kyle Greenhill · fastest of 77 · top 5 within 0.5s2:43.748Preston Pardus · fastest of 75 · top 5 within 1.0s121.3Kyle Greenhill+39.002squal +37.935s131.3%qual 130.5%2:27.045Gregory 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%
35 rule changes (FA: 15, FE2: 2, SM: 2, AS: 16)8 engine · 5 weight · 4 induction · 4 tyres & wheels · 3 suspension & brakes · 2 aero · 2 cars added · 1 removed · 1 wording · 5 othershowhide
  • SM Radiator E&O Clarifications #29294engine
  • FE2 FE/FE2 Oil Cooler #29293wording
  • AS Dodge Challenger AS Spec Line Clarification #28698induction
  • AS Dodge Challenger AS Spec Line Clarification #2 #28699aero
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • 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
  • 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
  • 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
  • FA Move wheel dimensions from Bodywork subsection to #27493tyres & wheels
  • FA Table 2 Mazda MZR 2.0 E&O #27640other
  • FE2 FE / FE2 Update Rules #27624weight
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 Vaccaro1:51.062Liam Snyder · fastest of 20 · top 5 within 1.3s1:52.154Liam Snyder · fastest of 19 · top 5 within 0.7s142.6Robert Vanman+9.047squal +9.517s108.8%qual 109.4%2:14.552Todd Buras · fastest of 60 · top 5 within 0.2s2:16.459Elivan Goulart · fastest of 56 · top 5 within 0.4s119.8Jim Drago+33.352squal +33.007s132.3%qual 132.5%2:02.938Gregory 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%
15 rule changes (FA: 7, SM: 4, AS: 4)5 weight · 3 engine · 1 cars added · 1 removed · 1 suspension & brakes · 1 tyres & wheels · 1 wording · 2 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
  • FA Swift 014 Mazda MZR 2.0 E&O #27305weight
  • 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
  • FA Add data plate requirement #26707other
  • FA Request to add FA engine spec lines #26183engine
  • SM Request to allow aftermarket fuel filters. #26370wording
  • AS SMG Mustang eligibility in American sedan #26224cars added
  • FA FA MZR 2.0 Engine Specification #25814engine
  • FA FA 016 weight increase #26063weight
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
Sonoma Raceway Runoffs 20182018-10-101:28.176Mirl Swan · fastest of 7 · top 5 within 4.0s1:29.924Mirl Swan · fastest of 7 · top 5 within 2.6s144.8Antony Opheim1:35.040Flinn Lazier · fastest of 9 · top 5 within 1.5s1:35.563Flinn Lazier · fastest of 9 · top 5 within 1.7s126.8Scott Rettich+5.639squal +6.864s106.3%qual 107.8%1:54.355Ken Sutherland · fastest of 48 · top 5 within 0.7s1:55.278Michael Carter · fastest of 48 · top 5 within 0.3s102.2Danny Steyn+25.354squal +26.179s128.2%qual 129.7%1:47.782Andrew 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%
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 1.0s1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s+27.735squal +28.349s130.4%qual 131.5%1:45.220James 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%
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 4.7s1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s+21.755squal +25.594s127.5%qual 134.2%1:30.651Tom 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%
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 5.3s2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s+35.905squal +30.903s133.2%qual 128.7%2:01.746Tom 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%

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.