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BoP Lab / Classes / FP

FP vs FB vs GTL vs FV pace at every track

Lap times across years say as much about the weather as the class. % of FP is each class's best lap as a share of FP's on the same day, so the conditions drop out: 100% is level, less is quicker, and a move in it is the class getting faster or slower against the field.

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB-SpecEPFAvsFB×FCFE2FFFP×vsFV×FXGT1GT2vsGTL×GTXHPPP2SMSMXSRF3STLSTUT1T2T3T4Show 49 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FP 100.0% of FP Kevin Ruck, Daytona International Speedway Runoffs 2015 race · FB 82.4% of FP J R Osborne, Sonoma Raceway Runoffs 2018 qualifying · GTL 93.3% of FP Scott Twomey, Indianapolis Motor Speedway Runoffs 2021 race · FV 97.7% of FP Alex Scaler, Indianapolis Motor Speedway Runoffs 2021 race

1:201:402:002:202:4028 rule changes between Runoffs 2018 and Runoffs 201928 ▾42 rule changes between Runoffs 2019 and Runoffs 202042 ▾29 rule changes between Runoffs 2020 and Runoffs 202129 ▾32 rule changes between Runoffs 2021 and Runoffs 202232 ▾13 rule changes between Runoffs 2022 and Runoffs 202313 ▾39 rule changes between Runoffs 2023 and Runoffs 202439 ▾20 rule changes between Runoffs 2024 and Runoffs 202520 ▾35 rule changes between Runoffs 2025 and Runoffs 202635 ▾FP race best at Runoffs 2015: 2:12.419 (Kevin Ruck)FP race best at Runoffs 2016: 1:36.399 (John Walker)FP race best at Runoffs 2017: 1:53.007 (Eric Prill)FP race best at Runoffs 2018: 1:48.481 (Joe Huffaker)FP race best at Runoffs 2019: 2:08.076 (Eric Prill)FP race best at Runoffs 2020: 2:34.033 (Kevin Ruck)FP race best at Runoffs 2021: 1:59.933 (Cliff Ira)FP race best at Runoffs 2022: 2:17.641 (Mason Workman)FP race best at Runoffs 2023: 2:07.787 (Cliff Ira)FP race best at Runoffs 2024: 2:33.246 (Kevin Ruck)FP race best at Runoffs 2025: 2:34.271 (Chris Bovis)FP race best at Runoffs 2026: 2:33.240 (David Strittmatter)FP qualifying best at Runoffs 2015: 2:11.009 (Kevin Ruck)FP qualifying best at Runoffs 2016: 1:35.938 (John Walker)FP qualifying best at Runoffs 2017: 1:52.091 (Eric Prill)FP qualifying best at Runoffs 2018: 1:47.588 (Joe Huffaker)FP qualifying best at Runoffs 2019: 2:07.436 (Eric Prill)FP qualifying best at Runoffs 2020: 2:31.414 (Ethan Shippert)FP qualifying best at Runoffs 2021: 1:51.082 (Craig Chima)FP qualifying best at Runoffs 2022: 2:06.217 (Eric Prill)FP qualifying best at Runoffs 2023: 2:08.248 (Cliff Ira)FP qualifying best at Runoffs 2024: 2:32.327 (Cliff Ira)FP qualifying best at Runoffs 2025: 2:32.395 (David Strittmatter)FP qualifying best at Runoffs 2026: 2:33.275 (Stephen Simonds)FB race best at Runoffs 2015: 1:51.616 (J R Osborne)FB race best at Runoffs 2016: 1:21.015 (Jeremy Hill)FB race best at Runoffs 2017: 1:33.702 (Alex Mayer)FB race best at Runoffs 2018: 1:31.189 (J R Osborne)FB race best at Runoffs 2019: 1:57.688 (Pete Frost)FB qualifying best at Runoffs 2015: 1:50.711 (J R Osborne)FB qualifying best at Runoffs 2016: 1:19.886 (Alex Mayer)FB qualifying best at Runoffs 2017: 1:33.746 (Gary Hickman)FB qualifying best at Runoffs 2018: 1:28.612 (J R Osborne)FB qualifying best at Runoffs 2019: 1:54.469 (Pete Frost)GTL race best at Runoffs 2015: 2:13.564 (Jim Dentici)GTL race best at Runoffs 2016: 1:35.912 (Kyle Disque)GTL race best at Runoffs 2017: 1:52.068 (Christopher Bovis)GTL race best at Runoffs 2018: 1:49.458 (Troy Ermish)GTL race best at Runoffs 2019: 2:07.837 (Bill Ball)GTL race best at Runoffs 2020: 2:31.601 (Peter Shadowen)GTL race best at Runoffs 2021: 1:51.952 (Scott Twomey)GTL race best at Runoffs 2022: 2:21.180 (Michael Lewis)GTL race best at Runoffs 2023: 2:11.277 (Graham Fuller)GTL race best at Runoffs 2024: 2:30.844 (Chris Bovis)GTL qualifying best at Runoffs 2015: 2:11.387 (Jim Dentici)GTL qualifying best at Runoffs 2016: 1:35.377 (Wilson Wright)GTL qualifying best at Runoffs 2017: 1:50.331 (Christopher Bovis)GTL qualifying best at Runoffs 2018: 1:47.885 (Troy Ermish)GTL qualifying best at Runoffs 2019: 2:06.997 (Peter Shadowen)GTL qualifying best at Runoffs 2020: 2:31.943 (Chris Bovis)GTL qualifying best at Runoffs 2021: 1:51.819 (Christopher Bovis)GTL qualifying best at Runoffs 2022: 2:07.789 (Peter Shadowen)GTL qualifying best at Runoffs 2023: 2:09.564 (Peter Shadowen)GTL qualifying best at Runoffs 2024: 2:30.858 (Peter Shadowen)FV race best at Runoffs 2015: 2:21.142 (Andrew Whitston)FV race best at Runoffs 2016: 1:38.066 (Flinn Lazier)FV race best at Runoffs 2017: 1:55.923 (Michael Varacins)FV race best at Runoffs 2018: 1:53.639 (Alex Scaler)FV race best at Runoffs 2019: 2:18.289 (Zachary Whitston)FV race best at Runoffs 2020: 2:45.816 (Alex Scaler)FV race best at Runoffs 2021: 1:57.234 (Alex Scaler)FV race best at Runoffs 2022: 2:18.093 (Andrew Whitston)FV race best at Runoffs 2023: 2:16.611 (Andrew Abbott)FV race best at Runoffs 2024: 2:44.834 (Andrew Abbott)FV race best at Runoffs 2025: 2:46.736 (Zachary Whitston)FV race best at Runoffs 2026: 2:45.272 (Brian Farnham)FV qualifying best at Runoffs 2015: 2:21.167 (Roger Siebenaler)FV qualifying best at Runoffs 2016: 1:37.942 (Alex Scaler)FV qualifying best at Runoffs 2017: 1:55.759 (Michael Varacins)FV qualifying best at Runoffs 2018: 1:52.637 (Skip Streets)FV qualifying best at Runoffs 2019: 2:15.712 (Andrew Whitston)FV qualifying best at Runoffs 2020: 2:43.994 (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 1:57.479 (Andrew Whitston)FV qualifying best at Runoffs 2022: 2:15.116 (Brian Farnham)FV qualifying best at Runoffs 2023: 2:15.639 (Andrew Whitston)FV qualifying best at Runoffs 2024: 2:42.643 (Andrew Whitston)FV qualifying best at Runoffs 2025: 2:44.101 (Andrew Abbott)FV qualifying best at Runoffs 2026: 2:46.536 (Zachary Whitston)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
FPFBGTLFVsolid race · dashed qualifying · slower is lower
90%100%110%28 rule changes between Runoffs 2018 and Runoffs 201928 ▾42 rule changes between Runoffs 2019 and Runoffs 202042 ▾29 rule changes between Runoffs 2020 and Runoffs 202129 ▾32 rule changes between Runoffs 2021 and Runoffs 202232 ▾13 rule changes between Runoffs 2022 and Runoffs 202313 ▾39 rule changes between Runoffs 2023 and Runoffs 202439 ▾20 rule changes between Runoffs 2024 and Runoffs 202520 ▾35 rule changes between Runoffs 2025 and Runoffs 202635 ▾FP race best at Runoffs 2015: 100.0% of FP's (Kevin Ruck)FP race best at Runoffs 2016: 100.0% of FP's (John Walker)FP race best at Runoffs 2017: 100.0% of FP's (Eric Prill)FP race best at Runoffs 2018: 100.0% of FP's (Joe Huffaker)FP race best at Runoffs 2019: 100.0% of FP's (Eric Prill)FP race best at Runoffs 2020: 100.0% of FP's (Kevin Ruck)FP race best at Runoffs 2021: 100.0% of FP's (Cliff Ira)FP race best at Runoffs 2022: 100.0% of FP's (Mason Workman)FP race best at Runoffs 2023: 100.0% of FP's (Cliff Ira)FP race best at Runoffs 2024: 100.0% of FP's (Kevin Ruck)FP race best at Runoffs 2025: 100.0% of FP's (Chris Bovis)FP race best at Runoffs 2026: 100.0% of FP's (David Strittmatter)FP qualifying best at Runoffs 2015: 100.0% of FP's (Kevin Ruck)FP qualifying best at Runoffs 2016: 100.0% of FP's (John Walker)FP qualifying best at Runoffs 2017: 100.0% of FP's (Eric Prill)FP qualifying best at Runoffs 2018: 100.0% of FP's (Joe Huffaker)FP qualifying best at Runoffs 2019: 100.0% of FP's (Eric Prill)FP qualifying best at Runoffs 2020: 100.0% of FP's (Ethan Shippert)FP qualifying best at Runoffs 2021: 100.0% of FP's (Craig Chima)FP qualifying best at Runoffs 2022: 100.0% of FP's (Eric Prill)FP qualifying best at Runoffs 2023: 100.0% of FP's (Cliff Ira)FP qualifying best at Runoffs 2024: 100.0% of FP's (Cliff Ira)FP qualifying best at Runoffs 2025: 100.0% of FP's (David Strittmatter)FP qualifying best at Runoffs 2026: 100.0% of FP's (Stephen Simonds)FB race best at Runoffs 2015: 84.3% of FP's (J R Osborne)FB race best at Runoffs 2016: 84.0% of FP's (Jeremy Hill)FB race best at Runoffs 2017: 82.9% of FP's (Alex Mayer)FB race best at Runoffs 2018: 84.1% of FP's (J R Osborne)FB race best at Runoffs 2019: 91.9% of FP's (Pete Frost)FB qualifying best at Runoffs 2015: 84.5% of FP's (J R Osborne)FB qualifying best at Runoffs 2016: 83.3% of FP's (Alex Mayer)FB qualifying best at Runoffs 2017: 83.6% of FP's (Gary Hickman)FB qualifying best at Runoffs 2018: 82.4% of FP's (J R Osborne)FB qualifying best at Runoffs 2019: 89.8% of FP's (Pete Frost)GTL race best at Runoffs 2015: 100.9% of FP's (Jim Dentici)GTL race best at Runoffs 2016: 99.5% of FP's (Kyle Disque)GTL race best at Runoffs 2017: 99.2% of FP's (Christopher Bovis)GTL race best at Runoffs 2018: 100.9% of FP's (Troy Ermish)GTL race best at Runoffs 2019: 99.8% of FP's (Bill Ball)GTL race best at Runoffs 2020: 98.4% of FP's (Peter Shadowen)GTL race best at Runoffs 2021: 93.3% of FP's (Scott Twomey)GTL race best at Runoffs 2022: 102.6% of FP's (Michael Lewis)GTL race best at Runoffs 2023: 102.7% of FP's (Graham Fuller)GTL race best at Runoffs 2024: 98.4% of FP's (Chris Bovis)GTL qualifying best at Runoffs 2015: 100.3% of FP's (Jim Dentici)GTL qualifying best at Runoffs 2016: 99.4% of FP's (Wilson Wright)GTL qualifying best at Runoffs 2017: 98.4% of FP's (Christopher Bovis)GTL qualifying best at Runoffs 2018: 100.3% of FP's (Troy Ermish)GTL qualifying best at Runoffs 2019: 99.7% of FP's (Peter Shadowen)GTL qualifying best at Runoffs 2020: 100.3% of FP's (Chris Bovis)GTL qualifying best at Runoffs 2021: 100.7% of FP's (Christopher Bovis)GTL qualifying best at Runoffs 2022: 101.2% of FP's (Peter Shadowen)GTL qualifying best at Runoffs 2023: 101.0% of FP's (Peter Shadowen)GTL qualifying best at Runoffs 2024: 99.0% of FP's (Peter Shadowen)FV race best at Runoffs 2015: 106.6% of FP's (Andrew Whitston)FV race best at Runoffs 2016: 101.7% of FP's (Flinn Lazier)FV race best at Runoffs 2017: 102.6% of FP's (Michael Varacins)FV race best at Runoffs 2018: 104.8% of FP's (Alex Scaler)FV race best at Runoffs 2019: 108.0% of FP's (Zachary Whitston)FV race best at Runoffs 2020: 107.6% of FP's (Alex Scaler)FV race best at Runoffs 2021: 97.7% of FP's (Alex Scaler)FV race best at Runoffs 2022: 100.3% of FP's (Andrew Whitston)FV race best at Runoffs 2023: 106.9% of FP's (Andrew Abbott)FV race best at Runoffs 2024: 107.6% of FP's (Andrew Abbott)FV race best at Runoffs 2025: 108.1% of FP's (Zachary Whitston)FV race best at Runoffs 2026: 107.9% of FP's (Brian Farnham)FV qualifying best at Runoffs 2015: 107.8% of FP's (Roger Siebenaler)FV qualifying best at Runoffs 2016: 102.1% of FP's (Alex Scaler)FV qualifying best at Runoffs 2017: 103.3% of FP's (Michael Varacins)FV qualifying best at Runoffs 2018: 104.7% of FP's (Skip Streets)FV qualifying best at Runoffs 2019: 106.5% of FP's (Andrew Whitston)FV qualifying best at Runoffs 2020: 108.3% of FP's (Hunter Phelps-Barron)FV qualifying best at Runoffs 2021: 105.8% of FP's (Andrew Whitston)FV qualifying best at Runoffs 2022: 107.1% of FP's (Brian Farnham)FV qualifying best at Runoffs 2023: 105.8% of FP's (Andrew Whitston)FV qualifying best at Runoffs 2024: 106.8% of FP's (Andrew Whitston)FV qualifying best at Runoffs 2025: 107.7% of FP's (Andrew Abbott)FV qualifying best at Runoffs 2026: 108.7% of FP's (Zachary Whitston)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
FPFBGTLFVsolid race · dashed qualifying · each class's best lap as a share of FP's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFPFBGTLFV
Qual best Race best Trap Qual best Race best Trap vs FP % of FP Qual best Race best Trap vs FP % of FP Qual best Race best Trap vs FP % of FP 
Road America Runoffs 20262026-09-282:33.275Stephen Simonds · fastest of 26 · top 5 within 1.0s+0.880s (+0.58%)2:33.240David Strittmatter · fastest of 25 · top 5 within 1.7s-1.031s (-0.67%)132.4David Strittmatter±0.0 mph (±0.0%)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%)+12.032squal +13.261s107.9%qual 108.7%
35 rule changes (FP: 34, GTL: 1)10 weight · 9 engine · 7 induction · 2 cars added · 1 removed · 1 suspension & brakes · 1 tyres & wheels · 4 wordingshowhide
  • FP Mini Cooper Compression Ratio #40517engine
  • FP 1996-2000 Honda Civic (CX, DX, VP, LX) with Engine Code D16Y7 #40322engine
  • FP 1275 Midget/Sprit Alternate intake manifold E/O #40370induction
  • FP HP Honda Civic (92-95) #40464weight -70 lbs
  • FP Miata track width - errors and omissions #39976wording
  • FP GCR Spec Line Correction #39977induction
  • FP CGR Spec Line Weight Correction #39978weight
  • FP Triumph GT6 Spec Change. #40098induction
  • FP Request to Classify BMW E21 320i #40110cars added
  • FP BMW 318is 84-85 engine displacement correction #40116engine
  • FP Correct Valve Sizes on FP Fiat x19 1300 and 1500 #39850engine
  • FP Dual Carburetor Adjustments #39851induction
  • GTL Remove GT3U from GCR as it is now in STU #39862removed
  • FP Request Toyota 5E Series Engines #38208engine
  • FP Request for Toyota 4E Series Engines #38209engine
  • FP Dual Carbs for the Fiat X1/9 #39593induction
  • FP TR2 Notes E&O #39180weight
  • FP Balance of Power #39187weight +50 lbs
  • FP Competition Adjustment Request #39259weight -80 lbs
  • FP Factory Roll Bar Removal on VW Convertible #39268wording
  • FP FP Parity Request #39325weight +50 lbs
  • FP Adjust former-GTL Honda's with B/D-Series Engines #39374engine
  • FP Please Lower Weight of 280Z #38871weight -160 lbs
  • FP Miata Weight Adjustment Follow Up #38949weight -25 lbs
  • FP Weight Break for 1098 Midget / Sprite #38970weight -80 lbs
  • FP HP Volvo 142 spec omission #38994engine
  • FP HP Mini DOHC 1.6 #38996engine
  • FP 83-88 FP Scirocco Spec Line Creation #38997cars added
  • FP Add to Rabbit description #39019wording
  • FP Clean-up 9.1.5.E.7e #39025suspension & brakes
  • FP Add TB size to Ford Mustang (94-98) Spec Line #39130induction
  • FP Correct Existing VW Scirocco Spec Line #39140weight
  • FP HP Plymouth Arrow spec omission #38995wording
  • FP Add Wheel Diameter to Appendix G #39008tyres & wheels
  • FP Add TB ID tolerance to general Prod rules #39009induction
Road America Runoffs 20252025-09-292:32.395David Strittmatter · fastest of 20 · top 5 within 2.9s+0.068s (+0.04%)2:34.271Chris Bovis · fastest of 19 · top 5 within 1.8s+1.025s (+0.67%)132.4David Strittmatter-1.1 mph (-0.8%)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%)+12.465squal +11.706s108.1%qual 107.7%
20 rule changes (FP: 17, GTL: 3)8 weight · 4 induction · 2 cars added · 2 engine · 1 aero · 3 othershowhide
  • FP BMW Z4 update #38490induction
  • FP EP Fiat 124 Spider Competition Adjustment Request #38498weight -50 lbs
  • FP Base Weight Adjustment for H-Production X1/9 Spec Lines #38255weight -50 lbs
  • FP Request for Classification of Chevrolet Spark #37755cars added
  • FP Request to Lower Ford Festiva Minimum Weight to 1600 LBS #37939weight -100 lbs
  • FP Request Competition Adjustment to BMW Z3 2.5L #37120induction
  • FP FP Class Adjustments #37458weight
  • FP Interpretation of Production Rules on Mirrors #37235other
  • FP Weight Reduction for Honda S2000 #37466weight
  • FP Mazda 1999 Miata 1.8L #37488weight -50 lbs
  • FP Errors & Omissions #37648cars added
  • FP GTL/FP consolidation 2025 Rules #37659induction
  • FP Effective date for Jan 2025 GCR updates #37654induction
  • FP Request to Reduce Weight of BMW 325i/is E30 (84-91) Spec Line #37119weight -50 lbs
  • FP Fix Error in Spridget Spec Line #37437engine
  • FP Create ruleset that allows GTL cars to run in FP #37485other
  • GTL Correct language regarding OEM Areo Devices #37137aero
  • FP 1275 HP Spridget Level 2 Only #36518other
  • GTL G16E-GTS Fuel Injection Spec Line Change #36588engine
  • GTL GTL Alternate Weight and Choke Option for L16 engine #36653weight
Road America Runoffs 20242024-10-012:32.327Cliff Ira · fastest of 26 · top 5 within 2.1s+0.913s (+0.60%)2:33.246Kevin Ruck · fastest of 24 · top 5 within 1.4s-0.787s (-0.51%)133.5David Strittmatter+0.3 mph (+0.2%)2:30.858Peter Shadowen · fastest of 14 · top 5 within 4.4s-1.085s (-0.71%)2:30.844Chris Bovis · fastest of 13 · top 5 within 3.7s-0.757s (-0.50%)133.3Peter Shadowen+1.8 mph (+1.4%)-2.402squal -1.469s98.4%qual 99.0%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%)+11.588squal +10.316s107.6%qual 106.8%
39 rule changes (FP: 21, GTL: 16, FV: 2)12 weight · 7 cars added · 7 engine · 5 induction · 1 aero · 1 suspension & brakes · 1 tyres & wheels · 3 wording · 2 othershowhide
  • FP Errors/emissions Honda Civic/CRX #36700wording
  • FV Disc Brakes #36822suspension & brakes
  • GTL Request to Include Toyota GR86 in GTL #36324cars added
  • GTL Inclusion of Modified Spec Miata for GTL competition #36325cars added
  • GTL Include Mazda MX5 RF 2017- in GTL #36428cars added
  • FP Errant entry in HP production line item #36231other
  • GTL Add GTL to GT3 choke option line. #36236induction
  • FP NIssan 300ZX Z31 to EP #35830cars added
  • FP RX7 1993 and Up Request In EP Spec Lines, classify #36031cars added
  • FP Clean-up Multiple EP RX-8 Spec Lines In EP #36156wording
  • FP Request to Replace CRX Plastic Panels #35876wording
  • FP FP data and parity #35896induction
  • GTL Request for Spec Line 1010 Reconsideration #35009weight +300 lbs
  • GTL Allow 34 mm chokes for the Datsun 510 #35661induction +50 lbs
  • FP GCR Correction - Redundant HP Spec Lines #35623engine
  • FP Update FP Protege (01-03) Model Info #35715other
  • FP Update 1988-1991 Civic to Match 1988-1991 CRX #35399weight
  • GTL Rear Blade Spoiler Clarification #35261aero
  • GTL GT Direct Injection allowance and rules #35437engine
  • GTL GT2/3 remove Direction Injection not allowed in Spec line notes #35439engine
  • FP FP data #35060weight +25 lbs
  • FP Request to Review Z3 2.5 Spec Line #35073weight +50 lbs
  • FP Corrections to Honda Spec Lines in FP #35250induction
  • FP Miata Alternate Head #35253weight -50 lbs
  • FP Triumph GT6 Adjustments #35255weight
  • FP Honda S2000 throttle body #35272induction
  • FP Correction within Triumph TR8 Spec Line #35315engine
  • FP Correction to EP 924S/944 Spec Line #35317weight
  • GTL Rotary Engine 12A Rotor Housings #35131engine
  • GTL Request to Include Toyota GR86 in GTL #35198cars added
  • GTL Errors and Omissions, GTL engines & Cars #35226engine
  • FP Porsche 944/924S Rule Change Request #35002weight
  • FP FP and HP Toyota Corolla #35030weight -43 lbs
  • FP Triumph GT6 Adjustments #35054weight -30 lbs
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
  • GTL Small Engines in GT Lite #34842engine
  • GTL Request to Classify Honda Fit body in GTL #35020cars added
  • GTL Errors in GTCS Headings and Use of the Terms Category and ClassChange existing GTL and GTA Rules #34453weight
  • GTL Weight for Nissan Sentra/200SX A 1400's #34918weight -50 lbs
Virginia International Raceway Runoffs 20232023-09-232:08.248Cliff Ira · fastest of 21 · top 5 within 1.0s+2.031s (+1.61%)2:07.787Cliff Ira · fastest of 20 · top 5 within 0.8s-9.854s (-7.16%)133.7Cliff Ira+1.1 mph (+0.9%)2:09.564Peter Shadowen · fastest of 11 · top 5 within 4.9s+1.775s (+1.39%)2:11.277Graham Fuller · fastest of 10 · top 5 within 2.4s-9.903s (-7.01%)142.7Peter Shadowen+6.7 mph (+4.9%)+3.490squal +1.316s102.7%qual 101.0%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%)+8.824squal +7.391s106.9%qual 105.8%
13 rule changes (FP: 6, GTL: 7)3 cars added · 3 engine · 3 induction · 2 weight · 2 othershowhide
  • FP Correct Intake Valve Size on 1500cc Midget/Spitfire #34419induction
  • FP ITC to FP? #34286other
  • FP Request to Classify Sonic and Fiesta in HP #34264cars added
  • FP Classification Request for 1978 Toyota Celica #34097cars added
  • GTL Please classify Fields Cardinal V8 #33784cars added
  • FP Request to Add Mazda Protege P5 to FP #33664other
  • GTL Toyota 4Y Engine Classification Request #33562engine
  • FP Review Limited Prep Port Matching Rules #33600induction
  • GTL Toyota 4A-F and 4A-FE 1.6L DOHC 16V Engine Request #33415engine
  • GTL Fiat HP Limited Prep X1/9 Weight in GTL #33297weight
  • GTL GT2 (TA2)/GTA Part Number Update #33315induction
  • GTL Request to add Ford Festiva to GTL #33335weight
  • GTL Engine Request #33064engine
Virginia International Raceway Runoffs 20222022-09-242:06.217Eric Prill · fastest of 18 · top 5 within 1.5s-1.219s (-0.96%)2:17.641Mason Workman · fastest of 15 · top 5 within 3.2s+9.565s (+7.47%)132.5Cliff Ira+1.2 mph (+0.9%)2:07.789Peter Shadowen · fastest of 14 · top 5 within 2.2s+0.792s (+0.62%)2:21.180Michael Lewis · fastest of 13 · top 5 within 2.1s+13.343s (+10.44%)136.0Peter Shadowen+4.9 mph (+3.7%)+3.539squal +1.572s102.6%qual 101.2%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%)+0.452squal +8.899s100.3%qual 107.1%
32 rule changes (FP: 25, GTL: 3, FV: 4)9 induction · 7 weight · 6 cars added · 4 engine · 2 tyres & wheels · 1 suspension & brakes · 1 wording · 2 othershowhide
  • FP Request to classify VW New Beetle 2.5L in EP #32725cars added
  • FP Request Rotary Injection on Dual Y manifold #32775engine
  • FP Request for Corrado Stroke & Displacement Correction #32985engine
  • GTL Tail lights on all GT category race cars. #32799suspension & brakes
  • FP Subaru BRZ Model Years #32500other
  • FP Weight Adjustment of Lotus 7 #32213weight +50 lbs
  • FP EP MX-5 Global Cup Car #32218weight
  • FP Please Class BMW 128i in EP #32370cars added
  • FP Inconsistency in Body Work Descriptions #32396other
  • FP Request to classify the 1999-2000 Mazda Protege in FP #32398cars added
  • FP Mazda RX8 with 13b Rotary #32170induction
  • FP Request Idle control valve clarification #32178engine
  • FP Correct FP BMW 325e/es Displacement #32394engine
  • FP EP Adjustments #31858induction
  • FP 1999 3.8L Ford Mustang to EP? #31635weight
  • FP Improved Touring Tires #32064tyres & wheels
  • FP VW Golf Jetta 2.0L intake and exhaust size correction. #32173induction
  • 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
  • GTL Request to Classify Ginetta G40 in GTL #31599cars added
  • FP Throttle Body and Idle Air #31800induction
  • FP Porsche 968 Engine Questions #31478induction
  • FP PCS E. 2. n. 4. Add Axle Shaft to Allow FWD the Same Freedom #31592tyres & wheels
  • FP BMW Z3 2.5L Spec Line #31724induction
  • FP FP Del Sol VTEC #31859induction
  • FP Standardize Level 2 Classifications in FP #31868induction
  • FV Update direct replacement connecting rod information #31843weight
  • FP 944S2 Restrictor #31396induction
  • FP Classing Clarification for 1986 Toyota Corolla FX16 #31527cars added
  • FV Formula V Connecting Rod Replacement #31448weight
  • FP E&O; MR2 Track #31120wording
  • GTL Request car classification #31032cars added
Indianapolis Motor Speedway Runoffs 20212021-09-251:51.082Craig Chima · fastest of 39 · top 5 within 1.2s-1.009s (-0.90%)1:59.933Cliff Ira · fastest of 33 · top 5 within 5.4s+6.926s (+6.13%)131.8Cliff Ira1:51.819Christopher Bovis · fastest of 22 · top 5 within 1.8s+1.488s (+1.35%)1:51.952Scott Twomey · fastest of 19 · top 5 within 1.7s-0.116s (-0.10%)129.5Brian Linn-7.981squal +0.737s93.3%qual 100.7%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-2.699squal +6.397s97.7%qual 105.8%
29 rule changes (FP: 21, GTL: 8)9 weight · 8 cars added · 4 engine · 2 induction · 2 suspension & brakes · 1 tyres & wheels · 1 wording · 2 othershowhide
  • FP Request to Allow F22c Engine for 2000-2003 Honda S2000 #30548engine
  • FP Request a review of the S14 240SX in EP. #30873weight -200 lbs
  • GTL Request to Update GTA Obsolete Part Numbers #30615wording
  • FP Lotus/Caterham 7 America Request #30392engine
  • FP Request to classify ITC Plymouth Arrow #30588cars added
  • FP Reclassification of the 1984/85 BMW 318i from FP to HP #30661cars added
  • FP Fiat x1/9 Competition Adjustments #30711weight -50 lbs
  • FP Reclassify Daimler SP 250 #30721cars added
  • GTL Request clarification for the Honda B18a,bVS B18c #30482weight
  • GTL Request to Allow Hood Bulge on Nissan B13 Sentra #30504other
  • GTL Request BMW E21 Classing #30582tyres & wheels
  • FP Move Porsche 924 in Level 1 Prep From EP to FP #30135cars added
  • FP Clarify Application of Percentage Based Weight Penalties #30669weight
  • FP Change Classification of 84-87 Mazda 626 from FP to HP #30350cars added
  • FP Fiat X1/9 brake rotors #30423suspension & brakes
  • FP Please Classify Mazda3 in FP #30165cars added
  • FP Golf MkIII Valve Size Request #30268engine
  • GTL Request for Help for Mazda 12A #29754weight +50 lbs
  • GTL Request LP HP Fiat X1/9 & Bertone 1500 to GTL #30058cars added
  • FP Alternate Front Brake Rotors and Calipers for EP AH 3000 #29893suspension & brakes
  • FP Request VW weight break #29963weight -50 lbs
  • GTL Please Add GTL Nissan 1.8L Engine MRA8DE #29805engine
  • GTL Increase 13b SIR size #29867induction
  • FP Mk2 VW Consistency and Cleanup of FP and HP Spec Lines #29195weight -50 lbs
  • FP Correct Wording for Level 1 and Level 2 Induction Systems #29406induction
  • FP Weight Reduction for Datsun Roadster #29409weight -75 lbs
  • FP EP TR8 Adjustment #29512weight -100 lbs
  • FP Request to Classify 1996-2000 Honda Civic EX #29515cars added
  • FP FAJS Carburetor #29576other
Road America Runoffs 20202020-10-022:31.414Ethan Shippert · fastest of 23 · top 5 within 2.2s2:34.033Kevin Ruck · fastest of 21 · top 5 within 2.3s133.2Sam Henry2:31.943Chris Bovis · fastest of 14 · top 5 within 6.3s2:31.601Peter Shadowen · fastest of 14 · top 5 within 7.2s131.4Peter Shadowen-2.432squal +0.529s98.4%qual 100.3%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+11.783squal +12.580s107.6%qual 108.3%
42 rule changes (FP: 19, GTL: 17, FV: 6)8 cars added · 8 induction · 7 aero · 7 tyres & wheels · 5 weight · 4 engine · 2 wording · 1 othershowhide
  • FP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O #29458tyres & wheels
  • GTL GT Category Wording #29193induction
  • FP EP BMW Z3 Rule Clarification #28998engine
  • GTL Request to change the Mazda 13b restrictor size #28518induction +175 lbs
  • FP Request to Classify Porsche 911 2.0L #28456cars added
  • FP Request to change to Carburetor Spec Line 84-87 Mazda 626 #28926induction
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • GTL Request to classify 1999-2007 Toyota MR2 Spyder body #28870cars added
  • GTL TA2 Gurney flap wicker clarification #28874aero
  • GTL STO Gurney flap wicker clarification #28883aero
  • GTL GT Gurney flap wicker clarification #28909aero
  • GTL Mazda 13b Restrictor Size Follow up to Letter 28518 #29015induction
  • FP BMW Cylinder Head Casting and Part Numbers #28708engine
  • FP Correct Scirocco Spec line E&O #28892weight
  • GTL Stall Test #28709induction
  • FP Request to Classify 1990-1994 Mazda Protege #28381cars added
  • FP Error in Mini Cooper Spec Line #28713wording
  • GTL GTL Wing Rule #28754aero
  • FP Caterham 7 Spec Line #28498engine
  • FP Request to classify SOHC 1989-90 240SX in F prod L2 #28553cars added
  • FP VW Weight and Valve Size Request #27886weight
  • FP Request to allow 40 DCOE carb for the Datsun 510 #28195induction
  • FP Request to classify Porsche 914 2L in LPrep FProd #28231cars added
  • FP Request Ford Fiesta Weight Adjustment #28336weight
  • FV Update rain tire designation #28444tyres & wheels
  • GTL Wing Mounting Upright Size #27641aero
  • GTL Wing Mounting Upright Size #27641aero
  • GTL GTL wing end plates addition #28243aero
  • GTL Clarification to letter #27406 #28309weight -50 lbs
  • FP Request for Help for Datsun 1200 #27934induction
  • GTL Windshield Clips #27323other
  • FP Request to List Mazda Miata Throttle Body Size #27907induction
  • FP Request to Classify 2001-2003 Mazda Protege ES in FP #27922cars added
  • 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
  • GTL Request Factory Five Daytona coupe classification #26308cars added
  • GTL Request to Classify the MK1 two door Jetta #27648cars added
  • FP Request to Correct Track of 1988-91 Honda Civic #27487wording
  • FP Re-organize Prep2 Cylinder Head Rules for Clarity & Consistency #27661engine
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
  • GTL 88-91 Honda CRX Spec Line Correction #27233weight
Virginia International Raceway Runoffs 20192019-10-052:07.436Eric Prill · fastest of 19 · top 5 within 0.6s2:08.076Eric Prill · fastest of 18 · top 5 within 0.8s131.4Ken Kannard1:54.469Pete Frost · only car1:57.688Pete Frost · only car145.9Pete Frost-10.388squal -12.967s91.9%qual 89.8%2:06.997Peter Shadowen · fastest of 19 · top 5 within 4.0s2:07.837Bill Ball · fastest of 18 · top 5 within 4.2s131.1Peter Shadowen-0.239squal -0.439s99.8%qual 99.7%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+10.213squal +8.276s108.0%qual 106.5%
28 rule changes (FP: 9, GTL: 13, FV: 6)5 cars added · 5 weight · 4 induction · 3 suspension & brakes · 3 tyres & wheels · 2 engine · 1 wording · 5 othershowhide
  • FV Allowed Modifications E&O #27398other
  • FP Request bodywork for Austin Healey Bugeye Sprite MK1 #27106other
  • FP Request to classify the GMX5 2019 #27263cars added
  • FP level one susp. component rule #27270suspension & brakes
  • FP Clarification of Carb Rules - Prep 1 #27300induction
  • FP Clarification of Carb Rules - Prep 2 #27301induction
  • FV E&O Wheels #27230tyres & wheels
  • GTL Fun Cup Beetle #27334weight
  • FP Request Miata Eligibility - 2003 #27121other
  • GTL GTL #26960weight
  • GTL Request CRZ wheelbase change #26896tyres & wheels
  • FV Exhaust termination rule E&O #26702other
  • FV E&O Dimensions #26674other
  • GTL Request to Classify VW Fun Cup Beetle #25986cars added
  • GTL Request GTX Fuel injection for previous GT-1 tube frame cars #26141engine
  • GTL Request to Classify Ligier JS2 R #26535cars added
  • GTL Request for GTL Mazda 13B SIR Increase with Penalty #26572engine
  • FP Rollcenter Correction Clarification #25873tyres & wheels
  • FP Hardtops #26476wording
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • GTL Request Ride Height Clarification #26600suspension & brakes
  • FP Request Classification of Dodge Daytona in F Production #26259weight -150 lbs
  • GTL Request Mazda 12a Rotary SIR Increase #26081induction
  • GTL Request to Classify Mustang 2 Body in GTL #26222cars added
  • FV FV Intake Manifold Clarification #26008induction
  • GTL Request for GTL Mini Adjustments #25754weight
  • GTL BMC thru Rover Group remove long inactive mini #25771weight
  • GTL GTX Homologation table update #26034cars added
Sonoma Raceway Runoffs 20182018-10-101:47.588Joe Huffaker · fastest of 15 · top 5 within 3.0s1:48.481Joe Huffaker · fastest of 14 · top 5 within 2.2s109.1Joe Huffaker1:28.612J R Osborne · fastest of 7 · top 5 within 3.3s1:31.189J R Osborne · fastest of 7 · top 5 within 3.7s140.5J R Osborne-17.292squal -18.976s84.1%qual 82.4%1:47.885Troy Ermish · fastest of 20 · top 5 within 4.5s1:49.458Troy Ermish · fastest of 19 · top 5 within 3.6s109.3Charles Leonard+0.977squal +0.297s100.9%qual 100.3%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+5.158squal +5.049s104.8%qual 104.7%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:52.091Eric Prill · fastest of 42 · top 5 within 1.2s1:53.007Eric Prill · fastest of 40 · top 5 within 0.7s1:33.746Gary Hickman · fastest of 18 · top 5 within 3.3s1:33.702Alex Mayer · fastest of 17 · top 5 within 3.0s-19.305squal -18.345s82.9%qual 83.6%1:50.331Christopher Bovis · fastest of 26 · top 5 within 1.5s1:52.068Christopher Bovis · fastest of 20 · top 5 within 1.0s-0.939squal -1.760s99.2%qual 98.4%1:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s+2.916squal +3.668s102.6%qual 103.3%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:35.938John Walker · fastest of 33 · top 5 within 0.4s1:36.399John Walker · fastest of 27 · top 5 within 0.3s1:19.886Alex Mayer · fastest of 10 · top 5 within 1.5s1:21.015Jeremy Hill · fastest of 10 · top 5 within 1.2s-15.384squal -16.052s84.0%qual 83.3%1:35.377Wilson Wright · fastest of 28 · top 5 within 1.2s1:35.912Kyle Disque · fastest of 28 · top 5 within 1.1s-0.487squal -0.561s99.5%qual 99.4%1:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s+1.667squal +2.004s101.7%qual 102.1%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:11.009Kevin Ruck · fastest of 20 · top 5 within 1.6s2:12.419Kevin Ruck · fastest of 18 · top 5 within 1.1s1:50.711J R Osborne · fastest of 20 · top 5 within 1.1s1:51.616J R Osborne · fastest of 19 · top 5 within 2.1s-20.803squal -20.298s84.3%qual 84.5%2:11.387Jim Dentici · fastest of 10 · top 5 within 2.2s2:13.564Jim Dentici · fastest of 9 · top 5 within 2.0s+1.145squal +0.378s100.9%qual 100.3%2:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s+8.723squal +10.158s106.6%qual 107.8%

By track

TrackEvents Typical % of FP Best Latest 
Road America4100.0%100.0%Runoffs 2020100.0%Runoffs 2026
Virginia International Raceway3100.0%100.0%Runoffs 2019100.0%Runoffs 2023
Indianapolis Motor Speedway2100.0%100.0%Runoffs 2017100.0%Runoffs 2021
Daytona International Speedway1100.0%100.0%Runoffs 2015100.0%Runoffs 2015
Mid-Ohio Sports Car Course1100.0%100.0%Runoffs 2016100.0%Runoffs 2016
Sonoma Raceway1100.0%100.0%Runoffs 2018100.0%Runoffs 2018
About this data
Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of FP'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.