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BoP Lab / Classes / P1

P1 vs F5 vs AS vs FF pace at every track

Lap times across years say as much about the weather as the class. % of P1 is each class's best lap as a share of P1'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-SpecEPvsF5×FAFCFE2vsFF×FPFVFXGT1GT2GTXHPPP1×P2SMSMXSRF3STLSTUT1T2T3T4Show 49 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: P1 100.0% of P1 Gianpaolo Ciancimino, Daytona International Speedway Runoffs 2015 race · F5 111.5% of P1 W. Clint McMahan, Daytona International Speedway Runoffs 2015 qualifying · AS 109.2% of P1 Gregory Eaton, Virginia International Raceway Runoffs 2022 race · FF 112.1% of P1 Tim Kautz, Daytona International Speedway Runoffs 2015 qualifying

1:402:002:2022 rule changes between Runoffs 2018 and Runoffs 201922 ▾30 rule changes between Runoffs 2019 and Runoffs 202030 ▾31 rule changes between Runoffs 2020 and Runoffs 202131 ▾18 rule changes between Runoffs 2021 and Runoffs 202218 ▾12 rule changes between Runoffs 2022 and Runoffs 202312 ▾19 rule changes between Runoffs 2023 and Runoffs 202419 ▾15 rule changes between Runoffs 2024 and Runoffs 202515 ▾15 rule changes between Runoffs 2025 and Runoffs 202615 ▾P1 race best at Runoffs 2015: 1:49.792 (Gianpaolo Ciancimino)Off the chart: P1 race best at Runoffs 2016: 1:19.407 (Gianpaolo Ciancimino)P1 race best at Runoffs 2017: 1:31.499 (Jim Devenport)P1 race best at Runoffs 2018: 1:28.786 (Perry Richardson)P1 race best at Runoffs 2019: 1:43.498 (Todd Slusher)P1 race best at Runoffs 2020: 2:01.870 (James French)P1 race best at Runoffs 2021: 1:29.225 (Lee Alexander)P1 race best at Runoffs 2022: 1:54.095 (John Mcaleer)P1 race best at Runoffs 2023: 1:44.329 (Todd Vanacore)P1 race best at Runoffs 2024: 2:00.418 (Matt Romer)P1 qualifying best at Runoffs 2015: 1:49.219 (Jim Downing)Off the chart: P1 qualifying best at Runoffs 2016: 1:17.308 (James Devenport)P1 qualifying best at Runoffs 2017: 1:30.794 (Jim Devenport)P1 qualifying best at Runoffs 2018: 1:27.714 (Todd Slusher)P1 qualifying best at Runoffs 2019: 1:42.674 (Todd Slusher)P1 qualifying best at Runoffs 2020: 2:01.101 (James French)P1 qualifying best at Runoffs 2021: 1:29.011 (Lee Alexander)P1 qualifying best at Runoffs 2022: 1:41.601 (Todd Slusher)P1 qualifying best at Runoffs 2023: 1:42.602 (Todd Vanacore)P1 qualifying best at Runoffs 2024: 2:00.476 (Chip Romer)F5 race best at Runoffs 2015: 2:03.298 (Matthew Strand)F5 race best at Runoffs 2016: 1:29.853 (Steven Thompson)F5 race best at Runoffs 2017: 1:42.860 (Wiley Clinton McMahan)F5 race best at Runoffs 2018: 1:42.491 (David Lapham)F5 race best at Runoffs 2019: 1:57.572 (Wiley Mcmahan)F5 race best at Runoffs 2020: 2:21.391 (James Weida)F5 race best at Runoffs 2021: 1:43.140 (Sven de Vries)F5 race best at Runoffs 2022: 2:21.862 (Sven de Vries)F5 qualifying best at Runoffs 2015: 2:01.824 (W. Clint McMahan)F5 qualifying best at Runoffs 2016: 1:28.528 (Calvin Stewart)F5 qualifying best at Runoffs 2017: 1:43.136 (Wiley Clinton McMahan)F5 qualifying best at Runoffs 2018: 1:41.807 (Jeff Jorgenson)F5 qualifying best at Runoffs 2019: 1:57.361 (Wiley Mcmahan)F5 qualifying best at Runoffs 2020: 2:20.954 (Calvin Stewart)F5 qualifying best at Runoffs 2021: 1:42.619 (Ryan Mayfield)F5 qualifying best at Runoffs 2022: 1:57.689 (James Weida)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)FF race best at Runoffs 2015: 2:03.383 (Rick Payne)FF race best at Runoffs 2016: 1:30.133 (Neil Verhagen)FF race best at Runoffs 2017: 1:44.524 (Jonathon Kotyk)FF race best at Runoffs 2018: 1:42.049 (Jonathon Kotyk)FF race best at Runoffs 2019: 2:20.474 (Jonathan Kotyk)FF race best at Runoffs 2020: 2:24.268 (Jeffrey Bartz)FF race best at Runoffs 2021: 1:55.676 (Jonathan Kotyk)FF race best at Runoffs 2022: 2:18.358 (Jonathan Kotyk)FF race best at Runoffs 2023: 2:00.583 (Jonathan Kotyk)FF race best at Runoffs 2024: 2:22.057 (Sebastian Mateo Naranjo)FF race best at Runoffs 2025: 2:25.541 (Calvin Kautz)FF race best at Runoffs 2026: 2:23.686 (Nathan Down)FF qualifying best at Runoffs 2015: 2:02.489 (Tim Kautz)FF qualifying best at Runoffs 2016: 1:29.213 (Neil Verhagen)FF qualifying best at Runoffs 2017: 1:44.601 (Zach Holden)FF qualifying best at Runoffs 2018: 1:41.612 (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 1:59.563 (Tyler O'Connor)FF qualifying best at Runoffs 2020: 2:22.916 (Simon Sikes)FF qualifying best at Runoffs 2021: 1:44.359 (Jonathan Kotyk)FF qualifying best at Runoffs 2022: 1:59.215 (Jonathan Kotyk)FF qualifying best at Runoffs 2023: 1:59.249 (Nolan Allaer)FF qualifying best at Runoffs 2024: 2:22.552 (Calvin Kautz)FF qualifying best at Runoffs 2025: 2:24.905 (Jonathan Kotyk)FF qualifying best at Runoffs 2026: 2:23.047 (David Ybarra)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
P1F5ASFFsolid race · dashed qualifying · slower is lower
100%110%120%22 rule changes between Runoffs 2018 and Runoffs 201922 ▾30 rule changes between Runoffs 2019 and Runoffs 202030 ▾31 rule changes between Runoffs 2020 and Runoffs 202131 ▾18 rule changes between Runoffs 2021 and Runoffs 202218 ▾12 rule changes between Runoffs 2022 and Runoffs 202312 ▾19 rule changes between Runoffs 2023 and Runoffs 202419 ▾15 rule changes between Runoffs 2024 and Runoffs 202515 ▾15 rule changes between Runoffs 2025 and Runoffs 202615 ▾P1 race best at Runoffs 2015: 100.0% of P1's (Gianpaolo Ciancimino)P1 race best at Runoffs 2016: 100.0% of P1's (Gianpaolo Ciancimino)P1 race best at Runoffs 2017: 100.0% of P1's (Jim Devenport)P1 race best at Runoffs 2018: 100.0% of P1's (Perry Richardson)P1 race best at Runoffs 2019: 100.0% of P1's (Todd Slusher)P1 race best at Runoffs 2020: 100.0% of P1's (James French)P1 race best at Runoffs 2021: 100.0% of P1's (Lee Alexander)P1 race best at Runoffs 2022: 100.0% of P1's (John Mcaleer)P1 race best at Runoffs 2023: 100.0% of P1's (Todd Vanacore)P1 race best at Runoffs 2024: 100.0% of P1's (Matt Romer)P1 qualifying best at Runoffs 2015: 100.0% of P1's (Jim Downing)P1 qualifying best at Runoffs 2016: 100.0% of P1's (James Devenport)P1 qualifying best at Runoffs 2017: 100.0% of P1's (Jim Devenport)P1 qualifying best at Runoffs 2018: 100.0% of P1's (Todd Slusher)P1 qualifying best at Runoffs 2019: 100.0% of P1's (Todd Slusher)P1 qualifying best at Runoffs 2020: 100.0% of P1's (James French)P1 qualifying best at Runoffs 2021: 100.0% of P1's (Lee Alexander)P1 qualifying best at Runoffs 2022: 100.0% of P1's (Todd Slusher)P1 qualifying best at Runoffs 2023: 100.0% of P1's (Todd Vanacore)P1 qualifying best at Runoffs 2024: 100.0% of P1's (Chip Romer)F5 race best at Runoffs 2015: 112.3% of P1's (Matthew Strand)F5 race best at Runoffs 2016: 113.2% of P1's (Steven Thompson)F5 race best at Runoffs 2017: 112.4% of P1's (Wiley Clinton McMahan)F5 race best at Runoffs 2018: 115.4% of P1's (David Lapham)F5 race best at Runoffs 2019: 113.6% of P1's (Wiley Mcmahan)F5 race best at Runoffs 2020: 116.0% of P1's (James Weida)F5 race best at Runoffs 2021: 115.6% of P1's (Sven de Vries)F5 race best at Runoffs 2022: 124.3% of P1's (Sven de Vries)F5 qualifying best at Runoffs 2015: 111.5% of P1's (W. Clint McMahan)F5 qualifying best at Runoffs 2016: 114.5% of P1's (Calvin Stewart)F5 qualifying best at Runoffs 2017: 113.6% of P1's (Wiley Clinton McMahan)F5 qualifying best at Runoffs 2018: 116.1% of P1's (Jeff Jorgenson)F5 qualifying best at Runoffs 2019: 114.3% of P1's (Wiley Mcmahan)F5 qualifying best at Runoffs 2020: 116.4% of P1's (Calvin Stewart)F5 qualifying best at Runoffs 2021: 115.3% of P1's (Ryan Mayfield)F5 qualifying best at Runoffs 2022: 115.8% of P1's (James Weida)AS race best at Runoffs 2015: 112.0% of P1's (Andy McDermid)AS race best at Runoffs 2016: 117.7% of P1's (Edward Hosni)AS race best at Runoffs 2017: 121.9% of P1's (Bryan Long)AS race best at Runoffs 2018: 124.3% of P1's (John Heinricy)AS race best at Runoffs 2019: 119.7% of P1's (James Jost)AS race best at Runoffs 2020: 121.2% of P1's (Gregory Eaton)AS race best at Runoffs 2021: 124.0% of P1's (Gregory Eaton)AS race best at Runoffs 2022: 109.2% of P1's (Gregory Eaton)AS race best at Runoffs 2023: 119.0% of P1's (Gregory Eaton)AS race best at Runoffs 2024: 121.6% of P1's (Gregory Eaton)AS qualifying best at Runoffs 2015: 111.5% of P1's (Tom Sloe)AS qualifying best at Runoffs 2016: 117.3% of P1's (Tom Sloe)AS qualifying best at Runoffs 2017: 115.9% of P1's (James Jost)AS qualifying best at Runoffs 2018: 122.9% of P1's (Andrew McDermid)AS qualifying best at Runoffs 2019: 119.7% of P1's (Gregory Eaton)AS qualifying best at Runoffs 2020: 121.4% of P1's (Gregory Eaton)AS qualifying best at Runoffs 2021: 124.1% of P1's (Drew Cattell)AS qualifying best at Runoffs 2022: 120.2% of P1's (Kurt Rezzetano)AS qualifying best at Runoffs 2023: 120.0% of P1's (Daniel Richardson)AS qualifying best at Runoffs 2024: 121.7% of P1's (Gregory Eaton)FF race best at Runoffs 2015: 112.4% of P1's (Rick Payne)FF race best at Runoffs 2016: 113.5% of P1's (Neil Verhagen)FF race best at Runoffs 2017: 114.2% of P1's (Jonathon Kotyk)FF race best at Runoffs 2018: 114.9% of P1's (Jonathon Kotyk)Off the chart: FF race best at Runoffs 2019: 135.7% of P1's (Jonathan Kotyk)FF race best at Runoffs 2020: 118.4% of P1's (Jeffrey Bartz)Off the chart: FF race best at Runoffs 2021: 129.6% of P1's (Jonathan Kotyk)FF race best at Runoffs 2022: 121.3% of P1's (Jonathan Kotyk)FF race best at Runoffs 2023: 115.6% of P1's (Jonathan Kotyk)FF race best at Runoffs 2024: 118.0% of P1's (Sebastian Mateo Naranjo)FF qualifying best at Runoffs 2015: 112.1% of P1's (Tim Kautz)FF qualifying best at Runoffs 2016: 115.4% of P1's (Neil Verhagen)FF qualifying best at Runoffs 2017: 115.2% of P1's (Zach Holden)FF qualifying best at Runoffs 2018: 115.8% of P1's (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 116.4% of P1's (Tyler O'Connor)FF qualifying best at Runoffs 2020: 118.0% of P1's (Simon Sikes)FF qualifying best at Runoffs 2021: 117.2% of P1's (Jonathan Kotyk)FF qualifying best at Runoffs 2022: 117.3% of P1's (Jonathan Kotyk)FF qualifying best at Runoffs 2023: 116.2% of P1's (Nolan Allaer)FF qualifying best at Runoffs 2024: 118.3% of P1's (Calvin Kautz)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
P1F5ASFFsolid race · dashed qualifying · each class's best lap as a share of P1's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventP1F5ASFF
Qual best Race best Trap Qual best Race best Trap vs P1 % of P1 Qual best Race best Trap vs P1 % of P1 Qual best Race best Trap vs P1 % of P1 
Road America Runoffs 20262026-09-282:26.911Andrew 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%)2:23.047David Ybarra · fastest of 20 · top 5 within 1.4s-1.858s (-1.28%)2:23.686Nathan Down · fastest of 20 · top 5 within 1.6s-1.855s (-1.27%)138.9Tazio Stefanelli+0.5 mph (+0.3%)
15 rule changes (AS: 13, FF: 2)5 weight · 4 engine · 3 tyres & wheels · 1 induction · 1 removed · 1 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
  • FF Clarification in FF Kent 1600 Compression Ratio Paragraph #40293engine
  • AS Clarification for LM7 Holley Carburetor #40167engine
  • AS Header Information Update for EFI Engine Build Sheets #39886engine
  • AS Errors and Omissions #39933weight
  • AS Re-Organization of AS Spec lines for 2026 #39887removed
  • AS Edelbrock manifold (& timing kit) to Chevy LS Spec Lines Request #39055weight
  • AS Restrictor Plate Change for Gen 2 Ford Coyote Engine #39501induction
  • FF Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheels
  • AS 1994 Mustang Spec Line Request #39104engine
  • AS Cadillac CTS-V BOP Weight Change #38640weight -50 lbs
Road America Runoffs 20252025-09-292:26.792Andrew 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%)2:24.905Jonathan Kotyk · fastest of 17 · top 5 within 1.1s+2.353s (+1.65%)2:25.541Calvin Kautz · fastest of 16 · top 5 within 0.5s+3.484s (+2.45%)138.4Tazio Stefanelli-2.3 mph (-1.6%)
15 rule changes (AS: 11, FF: 4)5 engine · 5 weight · 2 induction · 2 tyres & wheels · 1 othershowhide
  • AS RE: Previous Letter 37695 Update #38245weight -75 lbs
  • AS Errors and Omissions #38234engine
  • AS Errors and Omission #38055induction
  • AS Request to Add LS1/LS6 Intakes for 5.3L Truck Engine EnO #38197engine
  • FF Page 228, FF tire rule 9.1.1.10.e #38251tyres & wheels
  • AS Flotek Head Plunge Cut Inconsistencies #37502other
  • AS Notes clean up #37693weight
  • AS Race memo #37902engine
  • FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheels
  • 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
  • FF Change FF/FC Weight with Sequential Gearbox #36651weight
  • FF Alternative Oversize Honda Fit Pistons #37064weight
Road America Runoffs 20242024-10-012:00.476Chip Romer · fastest of 12 · top 5 within 1.5s-0.625s (-0.52%)2:00.418Matt Romer · fastest of 9 · top 5 within 2.1s-1.452s (-1.19%)168.3Jason Miller+8.7 mph (+5.4%)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%)+26.011squal +26.102s121.6%qual 121.7%2:22.552Calvin Kautz · fastest of 13 · top 5 within 1.1s-0.364s (-0.25%)2:22.057Sebastian Mateo Naranjo · fastest of 13 · top 5 within 0.6s-2.211s (-1.53%)140.7Calvin Kautz+2.6 mph (+1.9%)+21.639squal +22.076s118.0%qual 118.3%
19 rule changes (P1: 6, AS: 11, FF: 2)6 cars added · 4 engine · 2 induction · 2 weight · 1 tyres & wheels · 4 othershowhide
  • FF Update to FF EGR Blanking Plate Rule #36633engine
  • AS Mustang transmission ratios #36662engine
  • 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
  • P1 Update GCR section 9.1.8.B.J.7 #35907engine
  • 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
  • P1 Remove redundant effective date language in GCR 9.1.8.B.J.4 #35693induction
  • P1 Correct engine series terminology #35694engine
  • FF Honda Fit Oversize Piston Rings #35305other
  • P1 Please correct omitted punctuation #34890weight
  • P1 Adjust restrictors and weights for Engine Table lines H and I #35229induction
  • P1 Revise Group CN Honda K20A-FD2 Spec Line #35337weight
Virginia International Raceway Runoffs 20232023-09-231:42.602Todd Vanacore · fastest of 10 · top 5 within 0.9s+1.001s (+0.99%)1:44.329Todd Vanacore · fastest of 9 · top 5 within 0.7s-9.766s (-8.56%)158.5Jason Miller+1.2 mph (+0.8%)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%)+19.791squal +20.480s119.0%qual 120.0%1:59.249Nolan Allaer · fastest of 8 · top 5 within 2.8s+0.034s (+0.03%)2:00.583Jonathan Kotyk · fastest of 8 · top 5 within 0.4s-17.775s (-12.85%)138.4Calvin Kautz+0.1 mph (+0.1%)+16.254squal +16.647s115.6%qual 116.2%
12 rule changes (P1: 7, AS: 4, FF: 1)3 engine · 3 induction · 3 tyres & wheels · 2 aero · 1 suspension & brakesshowhide
  • 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
  • P1 SIR Testing #34354induction
  • P1 E&O Single Inlet Restrictor abbreviation, etc. #34369induction
  • P1 E&O Clean up ducted air provision #34410tyres & wheels
  • P1 E&O - Correct dimensional equivalents #34018tyres & wheels
  • FF Add Fast Forward Part Numbers for Honda Fit Engine #33752engine
  • P1 November 2022 Rules Clarification for Suspension Covers #33615aero
  • P1 Clarify body panel coverage of suspension components #33318aero
  • P1 E&O clarification regarding forced induction #33123induction
Virginia International Raceway Runoffs 20222022-09-241:41.601Todd Slusher · fastest of 9 · top 5 within 2.3s-1.073s (-1.05%)1:54.095John Mcaleer · fastest of 9 · top 5 within 1.4s+10.597s (+10.24%)157.2Jason Miller+1.3 mph (+0.8%)1:57.689James Weida · fastest of 11 · top 5 within 3.9s+0.328s (+0.28%)2:21.862Sven de Vries · fastest of 10 · top 5 within 14.3s+24.290s (+20.66%)142.9Calvin Stewart+0.1 mph (+0.1%)+27.767squal +16.088s124.3%qual 115.8%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%)+10.483squal +20.561s109.2%qual 120.2%1:59.215Jonathan Kotyk · fastest of 13 · top 5 within 1.2s-0.348s (-0.29%)2:18.358Jonathan Kotyk · fastest of 12 · top 5 within 2.4s-2.116s (-1.51%)138.3Tim Kautz+2.2 mph (+1.6%)+24.263squal +17.614s121.3%qual 117.3%
18 rule changes (P1: 3, F5: 6, AS: 9)3 engine · 3 induction · 3 weight · 1 suspension & brakes · 1 tyres & wheels · 2 wording · 5 othershowhide
  • AS Request to add Hoosier W2 #33031other
  • AS correction of Dodge Challenger specification line #33151wording
  • F5 Intake Boots Correction #33028induction
  • F5 Ensure availability of ECU for Rotax engines #32695engine
  • P1 Clarify authorization to use flat plate intake restrictor #32964induction
  • AS Request CTS-V Spec Line Error Correction #30242weight
  • F5 Clarify stepped exhaust header references #32743engine
  • F5 593 carb boot availability and oil pump clarification #32527induction
  • P1 E&O Clarification of Bodywork Rules #32468tyres & wheels
  • F5 E&O class name #32194other
  • 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
  • F5 Data Box Mounting Plate #31638other
  • P1 Displacement & Weight Change Request for 2-Cycle 6 Cylinder #31609weight
  • 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 20212021-09-251:29.011Lee Alexander · fastest of 13 · top 5 within 2.5s-1.783s (-1.96%)1:29.225Lee Alexander · fastest of 12 · top 5 within 3.5s-2.274s (-2.49%)160.1Jason Miller1:42.619Ryan Mayfield · fastest of 22 · top 5 within 1.6s-0.517s (-0.50%)1:43.140Sven de Vries · fastest of 20 · top 5 within 1.7s+0.280s (+0.27%)144.4James Weida+13.915squal +13.608s115.6%qual 115.3%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+21.381squal +21.416s124.0%qual 124.1%1:44.359Jonathan Kotyk · fastest of 24 · top 5 within 1.1s-0.242s (-0.23%)1:55.676Jonathan Kotyk · fastest of 23 · top 5 within 1.8s+11.152s (+10.67%)141.6Nicholas Sheppard+26.451squal +15.348s129.6%qual 117.2%
31 rule changes (P1: 11, F5: 3, AS: 14, FF: 3)11 engine · 10 weight · 3 cars added · 1 induction · 1 tyres & wheels · 4 wording · 1 othershowhide
  • P1 Move 2000cc and 2300cc engine options to individual spec lines #31012engine
  • P1 E&O Spec Line B notes #31095weight
  • F5 Clarify allowable assisted shifting systems #30871wording
  • F5 Request to correct terminology #30976tyres & wheels
  • P1 Add 1355cc spec line #30890weight
  • 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
  • F5 Request to Allow Rotax 593 HO Engine #30712engine
  • P1 E&O tonneau cover provision in cockpit opening section #30458other
  • P1 Update Spec Line B Notes #30498weight
  • P1 Update Spec Lines C and G notes #30499weight
  • P1 E&O Maximum Valves Per Cylinder #30559engine
  • FF Kent crankshaft clarification #30426wording
  • P1 Clean up Spec Line A notes section #30424engine
  • P1 Clean up Spec Line H notes section #30425engine
  • 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
  • P1 DP02 Sealed 2ltr Engine Option #30038engine
  • P1 E&O restrictor terminology #30285induction
  • 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
  • AS Request Additional Engine Options for Dodge Challenger Spec Line #29543engine
  • AS Rule simplification spec line communization #29824weight
  • FF Allow Optional Coolant Bleed Line to Correct a Known Problem #29673engine
  • FF Clarification regarding Honda LC1 ECU implementation date #29684engine
Road America Runoffs 20202020-10-022:01.101James French · fastest of 18 · top 5 within 1.1s2:01.870James French · fastest of 17 · top 5 within 1.8s159.7David Locke2:20.954Calvin Stewart · fastest of 16 · top 5 within 1.8s2:21.391James Weida · fastest of 14 · top 5 within 1.5s143.2Aaron Ellis+19.521squal +19.853s116.0%qual 116.4%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+25.798squal +25.944s121.2%qual 121.4%2:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s138.1Jeffrey Bartz+22.398squal +21.815s118.4%qual 118.0%
30 rule changes (P1: 4, F5: 6, AS: 16, FF: 4)8 engine · 5 induction · 4 weight · 3 tyres & wheels · 2 cars added · 2 suspension & brakes · 1 aero · 5 othershowhide
  • F5 Request to Update Suzuki Engine Years for F500 #29453engine
  • AS Dodge Challenger AS Spec Line Clarification #28698induction
  • AS Dodge Challenger AS Spec Line Clarification #2 #28699aero
  • FF Clarification regarding Honda LC1 ECU implementation #29135engine
  • 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
  • F5 Request for Cockpit Adjustment of External Jetting Devices #28359other
  • F5 Two Stroke Motors (reply to #28359 WDYT) #28816engine
  • F5 Re letter requesting driver adjustable carb mixture #28840other
  • F5 #28359 WDYT Request for Cockpit Adjustment #28875other
  • AS weight adjustments for 2020 season #28785weight -50 lbs
  • P1 E&O minimum weights and intake manifolds #28731induction
  • FF E&O FF Kent Engine alternator language #28204engine
  • FF Honda Racing HPD low cost ECU proposal #27563engine
  • FF Update rain tire designation #28443tyres & 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
  • P1 Extend date for removing sealed DP02-spec 2.0L option #28046weight
  • F5 Change 600cc restrictor size #27883induction
  • P1 Remove sealed DP02-spec 2.0 MZR spec #26753induction
  • P1 Update Revised Spec Line F #27745weight
Virginia International Raceway Runoffs 20192019-10-051:42.674Todd Slusher · fastest of 14 · top 5 within 1.5s1:43.498Todd Slusher · fastest of 13 · top 5 within 1.0s155.9Jim Devenport1:57.361Wiley Mcmahan · fastest of 15 · top 5 within 3.8s1:57.572Wiley Mcmahan · fastest of 15 · top 5 within 4.0s142.8Eric McRee+14.074squal +14.687s113.6%qual 114.3%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+20.402squal +20.264s119.7%qual 119.7%1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s136.2Derek Ketchie+36.976squal +16.889s135.7%qual 116.4%
22 rule changes (P1: 14, F5: 1, AS: 4, FF: 3)7 engine · 4 induction · 2 weight · 1 cars added · 1 removed · 1 suspension & brakes · 1 tyres & wheels · 2 wording · 3 othershowhide
  • AS Request to add SMG to 9.1.6.B.1 AS Intent #27140other
  • F5 Request for Weight Increase for Motorcycle Powered Cars #27214weight +25 lbs
  • AS Request Ride Height Clarification #26598suspension & brakes
  • P1 E&O Transmissions #27098other
  • P1 E&O Transmissions #27005tyres & wheels
  • P1 Move minimum height provision to #27031removed
  • P1 Remove duplicative fender louver provision #27033induction
  • AS Request to Revert to 2017 Weights #25885weight
  • P1 Missing word E&O #26919other
  • P1 E&O correction to GCR 9.1.8.C.C. #26927wording
  • P1 Clean up reference to engine table #26648engine
  • P1 Remove redundant spec line #26692engine
  • P1 Clean Up Engine Table Language #26590engine
  • P1 Move single-seat closed cockpit provision to #26376wording
  • AS SMG Mustang eligibility in American sedan #26224cars added
  • FF Request for Oversize Honda Fit Pistons #25810engine
  • FF Heat Shield - Fit Intake #26102induction
  • FF Request catch cans/tanks clarification #26158engine
  • P1 Correct errors in GCR section 9.1.8.C.J #26144engine
  • P1 Remove redundant inlet restrictor provisions #25877induction
  • P1 Clarify Honda K20A-FD2 parts requirement #25949engine
  • P1 Correct GCR section 9.1.8.C.J errors #25966induction
Sonoma Raceway Runoffs 20182018-10-101:27.714Todd Slusher · fastest of 19 · top 5 within 2.1s1:28.786Perry Richardson · fastest of 19 · top 5 within 0.9s144.0Johnnie Crean1:41.807Jeff Jorgenson · fastest of 5 · top 5 within 6.6s1:42.491David Lapham · fastest of 5 · top 5 within 9.5s113.3David Lapham+13.705squal +14.093s115.4%qual 116.1%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+21.559squal +20.068s124.3%qual 122.9%1:41.612Jonathon Kotyk · fastest of 22 · top 5 within 1.7s1:42.049Jonathon Kotyk · fastest of 22 · top 5 within 1.3s115.7Denny Renfrow+13.263squal +13.898s114.9%qual 115.8%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:30.794Jim Devenport · fastest of 19 · top 5 within 2.8s1:31.499Jim Devenport · fastest of 16 · top 5 within 2.2s1:43.136Wiley Clinton McMahan · fastest of 38 · top 5 within 1.4s1:42.860Wiley Clinton McMahan · fastest of 37 · top 5 within 1.6s+11.361squal +12.342s112.4%qual 113.6%1:45.220James Jost · fastest of 29 · top 5 within 6.7s1:51.507Bryan Long · fastest of 28 · top 5 within 0.9s+20.008squal +14.426s121.9%qual 115.9%1:44.601Zach Holden · fastest of 36 · top 5 within 1.2s1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s+13.025squal +13.807s114.2%qual 115.2%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:17.308James Devenport · fastest of 14 · top 5 within 2.7s1:19.407Gianpaolo Ciancimino · fastest of 13 · top 5 within 1.8s1:28.528Calvin Stewart · fastest of 14 · top 5 within 3.9s1:29.853Steven Thompson · fastest of 12 · top 5 within 4.5s+10.446squal +11.220s113.2%qual 114.5%1:30.651Tom Sloe · fastest of 22 · top 5 within 3.6s1:33.424Edward Hosni · fastest of 20 · top 5 within 1.0s+14.017squal +13.343s117.7%qual 117.3%1:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s+10.726squal +11.905s113.5%qual 115.4%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-211:49.219Jim Downing · fastest of 9 · top 5 within 2.2s1:49.792Gianpaolo Ciancimino · fastest of 10 · top 5 within 1.7s2:01.824W. Clint McMahan · fastest of 16 · top 5 within 3.0s2:03.298Matthew Strand · fastest of 15 · top 5 within 4.9s+13.506squal +12.605s112.3%qual 111.5%2:01.746Tom Sloe · fastest of 22 · top 5 within 2.6s2:02.922Andy McDermid · fastest of 19 · top 5 within 2.2s+13.130squal +12.527s112.0%qual 111.5%2:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s+13.591squal +13.270s112.4%qual 112.1%

By track

TrackEvents Typical % of P1 Best Latest 
Road America4100.0%2 of 4 with P1100.0%Runoffs 2020100.0%Runoffs 2024
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 P1'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.