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BoP Lab / Classes / P2

P2 vs FC vs FB vs SRF3 pace at every track

Lap times across years say as much about the weather as the class. % of P2 is each class's best lap as a share of P2'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×vsFC×FE2FFFPFVFXGT1GT2GTXHPPP2×SMSMXvsSRF3×STLSTUT1T2T3T4Show 50 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: P2 100.0% of P2 Jeff Shafer, Daytona International Speedway Runoffs 2015 race · FC 94.1% of P2 Nolan Allaer, Virginia International Raceway Runoffs 2022 race · FB 99.0% of P2 J R Osborne, Daytona International Speedway Runoffs 2015 qualifying · SRF3 104.6% of P2 Franklin Futrelle, Virginia International Raceway Runoffs 2022 race

1:201:402:002:2014 rule changes between Runoffs 2018 and Runoffs 201914 ▾17 rule changes between Runoffs 2019 and Runoffs 202017 ▾15 rule changes between Runoffs 2020 and Runoffs 202115 ▾18 rule changes between Runoffs 2021 and Runoffs 202218 ▾15 rule changes between Runoffs 2022 and Runoffs 202315 ▾17 rule changes between Runoffs 2023 and Runoffs 202417 ▾6 rule changes between Runoffs 2024 and Runoffs 20256 ▾4 rule changes between Runoffs 2025 and Runoffs 20264 ▾P2 race best at Runoffs 2015: 1:52.355 (Jeff Shafer)P2 race best at Runoffs 2016: 1:20.904 (Jeff Shafer)P2 race best at Runoffs 2017: 1:32.481 (Jeff Shafer)P2 race best at Runoffs 2018: 1:32.071 (Chuck Bona)P2 race best at Runoffs 2019: 1:50.258 (Greg Gyann)P2 race best at Runoffs 2020: 2:09.793 (Robert Iversen)P2 race best at Runoffs 2021: 1:35.322 (Tim Day Jr)P2 race best at Runoffs 2022: 2:15.834 (Greg Gyann)P2 race best at Runoffs 2023: 1:48.829 (Lucian Pancea)P2 race best at Runoffs 2024: 2:08.322 (Bart Wolf)P2 race best at Runoffs 2026: 2:09.441 (Mike Reupert)P2 qualifying best at Runoffs 2015: 1:51.825 (Chris Farrell)P2 qualifying best at Runoffs 2016: 1:20.188 (Jeff Shafer)P2 qualifying best at Runoffs 2017: 1:31.826 (Jeff Shafer)P2 qualifying best at Runoffs 2018: 1:28.784 (Tim Day Jr)P2 qualifying best at Runoffs 2019: 1:49.111 (Robert Iversen)P2 qualifying best at Runoffs 2020: 2:08.514 (Robert Iversen)P2 qualifying best at Runoffs 2021: 1:33.235 (Tim Day Jr)P2 qualifying best at Runoffs 2022: 1:47.566 (Tim Day Jr)P2 qualifying best at Runoffs 2023: 1:48.590 (Greg Gyann)P2 qualifying best at Runoffs 2024: 2:07.405 (Bart Wolf)P2 qualifying best at Runoffs 2026: 2:10.606 (Greg Gyann)FC race best at Runoffs 2015: 1:55.135 (Yufeng Luo)FC race best at Runoffs 2016: 1:22.049 (Nigel Saurino)FC race best at Runoffs 2017: 1:36.890 (Tim Minor)FC race best at Runoffs 2018: 1:34.053 (Mitch Egner)FC race best at Runoffs 2019: 1:52.174 (Robert Allaer)FC race best at Runoffs 2020: 2:13.608 (Robert Allaer)FC race best at Runoffs 2021: 1:36.980 (Simon Sikes)FC race best at Runoffs 2022: 2:07.859 (Nolan Allaer)FC race best at Runoffs 2023: 1:51.169 (Nolan Allaer)FC race best at Runoffs 2024: 2:11.534 (Michael Varacins)FC race best at Runoffs 2025: 2:12.824 (Brandon Dixon)FC race best at Runoffs 2026: 2:11.389 (Brandon Dixon)FC qualifying best at Runoffs 2015: 1:54.477 (Yufeng Luo)FC qualifying best at Runoffs 2016: 1:21.962 (John LaRue)FC qualifying best at Runoffs 2017: 1:36.336 (Austin McCusker)FC qualifying best at Runoffs 2018: 1:32.571 (Timothy de Silva)FC qualifying best at Runoffs 2019: 1:51.200 (Robert Allaer)FC qualifying best at Runoffs 2020: 2:12.644 (Robert Allaer)FC qualifying best at Runoffs 2021: 1:36.787 (Trent Walko)FC qualifying best at Runoffs 2022: 1:49.895 (Nolan Allaer)FC qualifying best at Runoffs 2023: 1:50.281 (Nolan Allaer)FC qualifying best at Runoffs 2024: 2:11.626 (Timothy Minor)FC qualifying best at Runoffs 2025: 2:11.259 (Brandon Dixon)FC qualifying best at Runoffs 2026: 2:10.686 (Brandon Dixon)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)SRF3 race best at Runoffs 2015: 2:10.215 (Chad Galloway)SRF3 race best at Runoffs 2016: 1:34.947 (Cliff White)SRF3 race best at Runoffs 2017: 1:49.782 (Tray Ayres)SRF3 race best at Runoffs 2018: 1:47.053 (TJ Acker)SRF3 race best at Runoffs 2019: 2:04.755 (Bobby Sak)SRF3 race best at Runoffs 2020: 2:31.038 (Justin Hille)SRF3 race best at Runoffs 2021: 1:50.095 (John Black)SRF3 race best at Runoffs 2022: 2:22.066 (Franklin Futrelle)SRF3 race best at Runoffs 2023: 2:04.911 (David Ogburn)SRF3 race best at Runoffs 2024: 2:28.129 (S Sandy Satullo III)SRF3 race best at Runoffs 2025: 2:29.839 (Morgan Burkhard)SRF3 race best at Runoffs 2026: 2:29.257 (Peyton Long)SRF3 qualifying best at Runoffs 2015: 2:08.557 (Kerry Jacobsen)SRF3 qualifying best at Runoffs 2016: 1:34.363 (John Black)SRF3 qualifying best at Runoffs 2017: 1:49.824 (John Black)SRF3 qualifying best at Runoffs 2018: 1:46.117 (Robeson Clay Russell)SRF3 qualifying best at Runoffs 2019: 2:04.624 (Brian Schofield)SRF3 qualifying best at Runoffs 2020: 2:29.786 (TJ Acker)SRF3 qualifying best at Runoffs 2021: 1:49.520 (Franklin Futrelle)SRF3 qualifying best at Runoffs 2022: 2:03.716 (Franklin Futrelle)SRF3 qualifying best at Runoffs 2023: 2:03.842 (Morgan Burkhard)SRF3 qualifying best at Runoffs 2024: 2:27.773 (Denny Stripling)SRF3 qualifying best at Runoffs 2025: 2:28.226 (Bobby Sak)SRF3 qualifying best at Runoffs 2026: 2:27.443 (Tyler Stephens)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
P2FCFBSRF3solid race · dashed qualifying · slower is lower
100%105%110%115%120%14 rule changes between Runoffs 2018 and Runoffs 201914 ▾17 rule changes between Runoffs 2019 and Runoffs 202017 ▾15 rule changes between Runoffs 2020 and Runoffs 202115 ▾18 rule changes between Runoffs 2021 and Runoffs 202218 ▾15 rule changes between Runoffs 2022 and Runoffs 202315 ▾17 rule changes between Runoffs 2023 and Runoffs 202417 ▾6 rule changes between Runoffs 2024 and Runoffs 20256 ▾4 rule changes between Runoffs 2025 and Runoffs 20264 ▾P2 race best at Runoffs 2015: 100.0% of P2's (Jeff Shafer)P2 race best at Runoffs 2016: 100.0% of P2's (Jeff Shafer)P2 race best at Runoffs 2017: 100.0% of P2's (Jeff Shafer)P2 race best at Runoffs 2018: 100.0% of P2's (Chuck Bona)P2 race best at Runoffs 2019: 100.0% of P2's (Greg Gyann)P2 race best at Runoffs 2020: 100.0% of P2's (Robert Iversen)P2 race best at Runoffs 2021: 100.0% of P2's (Tim Day Jr)P2 race best at Runoffs 2022: 100.0% of P2's (Greg Gyann)P2 race best at Runoffs 2023: 100.0% of P2's (Lucian Pancea)P2 race best at Runoffs 2024: 100.0% of P2's (Bart Wolf)P2 race best at Runoffs 2026: 100.0% of P2's (Mike Reupert)P2 qualifying best at Runoffs 2015: 100.0% of P2's (Chris Farrell)P2 qualifying best at Runoffs 2016: 100.0% of P2's (Jeff Shafer)P2 qualifying best at Runoffs 2017: 100.0% of P2's (Jeff Shafer)P2 qualifying best at Runoffs 2018: 100.0% of P2's (Tim Day Jr)P2 qualifying best at Runoffs 2019: 100.0% of P2's (Robert Iversen)P2 qualifying best at Runoffs 2020: 100.0% of P2's (Robert Iversen)P2 qualifying best at Runoffs 2021: 100.0% of P2's (Tim Day Jr)P2 qualifying best at Runoffs 2022: 100.0% of P2's (Tim Day Jr)P2 qualifying best at Runoffs 2023: 100.0% of P2's (Greg Gyann)P2 qualifying best at Runoffs 2024: 100.0% of P2's (Bart Wolf)P2 qualifying best at Runoffs 2026: 100.0% of P2's (Greg Gyann)FC race best at Runoffs 2015: 102.5% of P2's (Yufeng Luo)FC race best at Runoffs 2016: 101.4% of P2's (Nigel Saurino)FC race best at Runoffs 2017: 104.8% of P2's (Tim Minor)FC race best at Runoffs 2018: 102.2% of P2's (Mitch Egner)FC race best at Runoffs 2019: 101.7% of P2's (Robert Allaer)FC race best at Runoffs 2020: 102.9% of P2's (Robert Allaer)FC race best at Runoffs 2021: 101.7% of P2's (Simon Sikes)Off the chart: FC race best at Runoffs 2022: 94.1% of P2's (Nolan Allaer)FC race best at Runoffs 2023: 102.2% of P2's (Nolan Allaer)FC race best at Runoffs 2024: 102.5% of P2's (Michael Varacins)FC race best at Runoffs 2026: 101.5% of P2's (Brandon Dixon)FC qualifying best at Runoffs 2015: 102.4% of P2's (Yufeng Luo)FC qualifying best at Runoffs 2016: 102.2% of P2's (John LaRue)FC qualifying best at Runoffs 2017: 104.9% of P2's (Austin McCusker)FC qualifying best at Runoffs 2018: 104.3% of P2's (Timothy de Silva)FC qualifying best at Runoffs 2019: 101.9% of P2's (Robert Allaer)FC qualifying best at Runoffs 2020: 103.2% of P2's (Robert Allaer)FC qualifying best at Runoffs 2021: 103.8% of P2's (Trent Walko)FC qualifying best at Runoffs 2022: 102.2% of P2's (Nolan Allaer)FC qualifying best at Runoffs 2023: 101.6% of P2's (Nolan Allaer)FC qualifying best at Runoffs 2024: 103.3% of P2's (Timothy Minor)FC qualifying best at Runoffs 2026: 100.1% of P2's (Brandon Dixon)FB race best at Runoffs 2015: 99.3% of P2's (J R Osborne)FB race best at Runoffs 2016: 100.1% of P2's (Jeremy Hill)FB race best at Runoffs 2017: 101.3% of P2's (Alex Mayer)FB race best at Runoffs 2018: 99.0% of P2's (J R Osborne)FB race best at Runoffs 2019: 106.7% of P2's (Pete Frost)FB qualifying best at Runoffs 2015: 99.0% of P2's (J R Osborne)FB qualifying best at Runoffs 2016: 99.6% of P2's (Alex Mayer)FB qualifying best at Runoffs 2017: 102.1% of P2's (Gary Hickman)FB qualifying best at Runoffs 2018: 99.8% of P2's (J R Osborne)FB qualifying best at Runoffs 2019: 104.9% of P2's (Pete Frost)SRF3 race best at Runoffs 2015: 115.9% of P2's (Chad Galloway)SRF3 race best at Runoffs 2016: 117.4% of P2's (Cliff White)SRF3 race best at Runoffs 2017: 118.7% of P2's (Tray Ayres)SRF3 race best at Runoffs 2018: 116.3% of P2's (TJ Acker)SRF3 race best at Runoffs 2019: 113.1% of P2's (Bobby Sak)SRF3 race best at Runoffs 2020: 116.4% of P2's (Justin Hille)SRF3 race best at Runoffs 2021: 115.5% of P2's (John Black)SRF3 race best at Runoffs 2022: 104.6% of P2's (Franklin Futrelle)SRF3 race best at Runoffs 2023: 114.8% of P2's (David Ogburn)SRF3 race best at Runoffs 2024: 115.4% of P2's (S Sandy Satullo III)SRF3 race best at Runoffs 2026: 115.3% of P2's (Peyton Long)SRF3 qualifying best at Runoffs 2015: 115.0% of P2's (Kerry Jacobsen)SRF3 qualifying best at Runoffs 2016: 117.7% of P2's (John Black)SRF3 qualifying best at Runoffs 2017: 119.6% of P2's (John Black)SRF3 qualifying best at Runoffs 2018: 119.5% of P2's (Robeson Clay Russell)SRF3 qualifying best at Runoffs 2019: 114.2% of P2's (Brian Schofield)SRF3 qualifying best at Runoffs 2020: 116.6% of P2's (TJ Acker)SRF3 qualifying best at Runoffs 2021: 117.5% of P2's (Franklin Futrelle)SRF3 qualifying best at Runoffs 2022: 115.0% of P2's (Franklin Futrelle)SRF3 qualifying best at Runoffs 2023: 114.0% of P2's (Morgan Burkhard)SRF3 qualifying best at Runoffs 2024: 116.0% of P2's (Denny Stripling)SRF3 qualifying best at Runoffs 2026: 112.9% of P2's (Tyler Stephens)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
P2FCFBSRF3solid race · dashed qualifying · each class's best lap as a share of P2's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventP2FCFBSRF3
Qual best Race best Trap Qual best Race best Trap vs P2 % of P2 Qual best Race best Trap vs P2 % of P2 Qual best Race best Trap vs P2 % of P2 
Road America Runoffs 20262026-09-282:10.606Greg Gyann · fastest of 11 · top 5 within 5.3s+3.201s (+2.51%)2:09.441Mike Reupert · fastest of 11 · top 5 within 4.2s+1.119s (+0.87%)155.0Matt Strand+2.4 mph (+1.6%)2:10.686Brandon Dixon · fastest of 10 · top 5 within 4.0s-0.573s (-0.44%)2:11.389Brandon Dixon · fastest of 10 · top 5 within 2.7s-1.435s (-1.08%)143.3Dean Kiriluk-1.8 mph (-1.2%)+1.948squal +0.080s101.5%qual 100.1%2:27.443Tyler Stephens · fastest of 44 · top 5 within 0.3s-0.783s (-0.53%)2:29.257Peyton Long · fastest of 42 · top 5 within 0.3s-0.582s (-0.39%)134.1Bobby Sak+0.4 mph (+0.3%)+19.816squal +16.837s115.3%qual 112.9%
4 rule changes (FC: 2, SRF3: 2)1 weight · 3 othershowhide
  • SRF3 SRF3 Spark Plugs #39899other
  • FC F2000 MZR Spec Line Clarity/Revision Requested #38927other
  • FC Adjust F2000 Metrik ZF2 weight #39612weight -20 lbs
  • SRF3 Add HD Oil Cooler #38979other
Road America Runoffs 20252025-09-292:11.259Brandon Dixon · fastest of 10 · top 5 within 2.7s-0.367s (-0.28%)2:12.824Brandon Dixon · fastest of 9 · top 5 within 2.3s+1.290s (+0.98%)145.1Brandon Dixon+0.9 mph (+0.6%)2:28.226Bobby Sak · fastest of 43 · top 5 within 0.6s+0.453s (+0.31%)2:29.839Morgan Burkhard · fastest of 42 · top 5 within 0.3s+1.710s (+1.15%)133.7Bobby Sak-1.5 mph (-1.1%)
6 rule changes (P2: 1, FC: 2, SRF3: 3)3 weight · 1 tyres & wheels · 2 othershowhide
  • SRF3 SRF Rule Updates #38853weight
  • SRF3 Driver Safety & Comfort #37966other
  • SRF3 Update SADEV transmission specs #37992other
  • P2 2000 cc Pinto Engine Car Weight #37187weight
  • FC 9.1.1.10.h. FC Tire Rule #36533tyres & wheels
  • FC Change FF/FC Weight with Sequential Gearbox #36651weight
Road America Runoffs 20242024-10-012:07.405Bart Wolf · fastest of 14 · top 5 within 3.0s-1.109s (-0.86%)2:08.322Bart Wolf · fastest of 13 · top 5 within 0.6s-1.471s (-1.13%)152.5Lucian Pancea-0.6 mph (-0.4%)2:11.626Timothy Minor · fastest of 10 · top 5 within 1.3s-1.018s (-0.77%)2:11.534Michael Varacins · fastest of 9 · top 5 within 1.8s-2.074s (-1.55%)144.2Michael Varacins+1.8 mph (+1.2%)+3.212squal +4.221s102.5%qual 103.3%2:27.773Denny Stripling · fastest of 57 · top 5 within 0.3s-2.013s (-1.34%)2:28.129S Sandy Satullo III · fastest of 52 · top 5 within 0.7s-2.909s (-1.93%)135.2Denny Stripling+3.4 mph (+2.6%)+19.807squal +20.368s115.4%qual 116.0%
17 rule changes (P2: 5, FC: 2, SRF3: 10)4 engine · 4 tyres & wheels · 4 weight · 3 suspension & brakes · 2 othershowhide
  • SRF3 Update SRF3 Air Filter Rule #36681other
  • SRF3 Update SRF Brake Rotor Thickness #36687suspension & brakes
  • SRF3 Hoosier Tire Decal Placement #36739tyres & wheels
  • SRF3 Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels
  • SRF3 Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels
  • SRF3 SRF3 Alternator Pulley Update In #36095weight
  • P2 CN Spec ECU #35835engine
  • P2 E&O - Correct FIA Group CN spec line notes #35900tyres & wheels
  • FC Four Pot Calipers #35481weight
  • FC Please correct omitted punctuation #34890weight
  • P2 E&O - Clarify B.1 modified engine range in AMAC spec lines #35225engine
  • P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines #35340engine
  • SRF3 Update SRF Rain / Brake Rule #34706suspension & brakes
  • SRF3 Update SRF Brake Light Rule v1 #34853suspension & brakes
  • SRF3 SRF / SRF3 Rule Updates #35268weight
  • P2 Correct Table 1 for Engine Date Range Specifications #35182engine
  • SRF3 SRF Radiator Rule Update #34805other
Virginia International Raceway Runoffs 20232023-09-231:48.590Greg Gyann · fastest of 12 · top 5 within 1.7s+1.024s (+0.95%)1:48.829Lucian Pancea · fastest of 11 · top 5 within 0.9s-27.005s (-19.88%)150.9Lucian Pancea-0.2 mph (-0.2%)1:50.281Nolan Allaer · fastest of 11 · top 5 within 2.3s+0.386s (+0.35%)1:51.169Nolan Allaer · fastest of 11 · top 5 within 2.5s-16.690s (-13.05%)143.5Robert Allaer+2.3 mph (+1.7%)+2.340squal +1.691s102.2%qual 101.6%2:03.842Morgan Burkhard · fastest of 40 · top 5 within 0.2s+0.126s (+0.10%)2:04.911David Ogburn · fastest of 39 · top 5 within 0.3s-17.155s (-12.08%)134.5Bobby Sak+0.1 mph (+0.0%)+16.082squal +15.252s114.8%qual 114.0%
15 rule changes (P2: 8, FC: 3, SRF3: 4)5 tyres & wheels · 4 weight · 3 engine · 1 cars added · 1 suspension & brakes · 1 wordingshowhide
  • FC Review FC Runoffs Tire Marking Rule #34274tyres & wheels
  • FC USF2000 Van Diemen with Mazda MZR LF-DE 2.0L in FC #34329weight
  • SRF3 Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels
  • P2 Clarify minimum side body height requirement #34143tyres & wheels
  • P2 Clarify closed cockpit single seat car allowance #34144wording
  • SRF3 Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
  • P2 Remove redundant effective date language and update engine table #34012engine
  • P2 E&O - Correct dimensional equivalents #34038weight
  • SRF3 Update SRF Brake Rule #33469suspension & brakes
  • SRF3 Update SRF Bodywork Fitment Rule #33765tyres & wheels
  • FC E&O 9.1.1.B.16.j #33634engine
  • P2 Request to Classify Sebeco NP01 #33378cars added
  • P2 Radical spec line clarifications #33485weight
  • P2 E&O original class intent #33519weight
  • P2 Update Engine Table Spec Line B.1 #33608engine
Virginia International Raceway Runoffs 20222022-09-241:47.566Tim Day Jr · fastest of 12 · top 5 within 3.0s-1.545s (-1.42%)2:15.834Greg Gyann · fastest of 12 · top 5 within 10.1s+25.576s (+23.20%)151.1Robert Iversen+1.8 mph (+1.2%)1:49.895Nolan Allaer · fastest of 12 · top 5 within 1.5s-1.305s (-1.17%)2:07.859Nolan Allaer · fastest of 13 · top 5 within 3.8s+15.685s (+13.98%)141.2Tim Minor-0.6 mph (-0.4%)-7.975squal +2.329s94.1%qual 102.2%2:03.716Franklin Futrelle · fastest of 44 · top 5 within 0.6s-0.908s (-0.73%)2:22.066Franklin Futrelle · fastest of 40 · top 5 within 1.2s+17.311s (+13.88%)134.5David Ogburn+2.1 mph (+1.6%)+6.232squal +16.150s104.6%qual 115.0%
18 rule changes (P2: 10, FC: 5, SRF3: 3)5 engine · 5 tyres & wheels · 2 weight · 1 aero · 1 suspension & brakes · 2 wording · 2 othershowhide
  • FC Add Specification to Performance Electronics ECU for Ford Zetec #32761engine
  • SRF3 SRF Tire Rule Update #32614tyres & wheels
  • SRF3 Brake, seal, and air filter clarifications #32670suspension & brakes
  • P2 E&O Clarification of Chassis Construction Requirements #32469tyres & wheels
  • P2 Clean up P2 wording #32525wording
  • P2 After Market to Aftermarket #32373other
  • P2 Add spec line for Beasley B2 #32147weight
  • P2 E&O Table 1 spec line wing terminology #32148aero
  • P2 E&O class name #32196other
  • P2 E&O Engine section #31969engine
  • FC Clean up Chassis/Frame section #31867engine
  • P2 E&O letter #31539 – Control Area definition #31783tyres & wheels
  • FC Clarify Zetec ECU requirements #31554engine
  • P2 BoP adjustment effective 1-1-22 #31538engine
  • P2 E&O clarification of "Control Area" definition #31539tyres & wheels
  • SRF3 Three Updates to SRF Rules #31523weight
  • FC Clarify composite anti-intrusion panel language #31426wording
  • FC Clarify tire marking requirements #31455tyres & wheels
Indianapolis Motor Speedway Runoffs 20212021-09-251:33.235Tim Day Jr · fastest of 16 · top 5 within 3.3s+1.409s (+1.53%)1:35.322Tim Day Jr · fastest of 10 · top 5 within 4.8s+2.841s (+3.07%)150.3Robert Iversen1:36.787Trent Walko · fastest of 31 · top 5 within 1.7s+0.451s (+0.47%)1:36.980Simon Sikes · fastest of 31 · top 5 within 2.0s+0.090s (+0.09%)141.6Tim Minor+1.658squal +3.552s101.7%qual 103.8%1:49.520Franklin Futrelle · fastest of 84 · top 5 within 0.5s-0.304s (-0.28%)1:50.095John Black · fastest of 82 · top 5 within 0.2s+0.313s (+0.29%)132.1Matthew Horst+14.773squal +16.285s115.5%qual 117.5%
15 rule changes (P2: 8, FC: 1, SRF3: 6)5 engine · 2 tyres & wheels · 2 weight · 1 induction · 1 suspension & brakes · 4 othershowhide
  • P2 P2 CN Engine Rebuild Clarification #31000engine
  • P2 F5 P2 Conversion #30856other
  • P2 Clarify minimum body width requirement #30859tyres & wheels
  • SRF3 SRF Wet Tires #30849tyres & wheels
  • SRF3 SADEV-SRF3 Transmission #30926other
  • SRF3 SRF Update Maintenance, Repairs and Seals #30961engine
  • SRF3 SRF3 Alternator Pulley #30684weight
  • P2 E&O tonneau cover provision in cockpit opening section #30459other
  • P2 Remove effective dates in Table 1 #30468other
  • P2 E&O Maximum Valves Per Cylinder #30560engine
  • FC Request for FC Weight Change #30171weight
  • P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc #30272engine
  • SRF3 Mandatory identification: #30223engine
  • P2 Balance of Performance adjustments effective 01-01-2021 #29822induction
  • SRF3 SRF Shocks, Springs and Ride Height. #29688suspension & brakes
Road America Runoffs 20202020-10-022:08.514Robert Iversen · fastest of 12 · top 5 within 3.0s2:09.793Robert Iversen · fastest of 12 · top 5 within 3.9s153.1Robert Iversen2:12.644Robert Allaer · fastest of 13 · top 5 within 2.1s2:13.608Robert Allaer · fastest of 11 · top 5 within 1.2s142.4Robert Allaer+3.815squal +4.130s102.9%qual 103.2%2:29.786TJ Acker · fastest of 59 · top 5 within 0.5s2:31.038Justin Hille · fastest of 55 · top 5 within 0.2s131.9Charles Russell Turner+21.245squal +21.272s116.4%qual 116.6%
17 rule changes (P2: 6, FC: 4, SRF3: 7)4 engine · 4 suspension & brakes · 3 induction · 2 weight · 1 aero · 1 cars added · 1 tyres & wheels · 1 othershowhide
  • FC Urgent: SCCA PE3 map unsuitable #29475induction
  • P2 E&O clarification of P2 rear wing requirements #29205aero
  • FC Request for weight adjustments to equalize FC competition. #28888weight
  • P2 Classify Elan NP01 in P2 Table 1 #28812cars added
  • SRF3 SRF Shocks #28791suspension & brakes
  • P2 SCCA Enterprises ESR / P2 engine restrictor testing #28669induction
  • SRF3 Update Bump Stop Rule #28712suspension & brakes
  • SRF3 SRF Bump Stop Correction #27019suspension & brakes
  • P2 Add ESR inlet restrictor #27869induction
  • P2 Request for Fly by Wire Rule Wording Change #28247engine
  • P2 Request for addition of BMW Engine in P2 Engine Table #27821engine
  • SRF3 SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • FC Request for Better Zetec Connecting Rods #27710engine
  • FC Add Alternate Piston #27795engine
  • SRF3 SRF Tire Warmer Rule #27622tyres & wheels
  • SRF3 SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF3 SRF / SRF3 Majors & Regional Class Updates #27723other
Virginia International Raceway Runoffs 20192019-10-051:49.111Robert Iversen · fastest of 14 · top 5 within 0.8s1:50.258Greg Gyann · fastest of 13 · top 5 within 0.4s149.4Robert Iversen1:51.200Robert Allaer · fastest of 10 · top 5 within 3.1s1:52.174Robert Allaer · fastest of 9 · top 5 within 2.7s141.8Robert Allaer+1.916squal +2.089s101.7%qual 101.9%1:54.469Pete Frost · only car1:57.688Pete Frost · only car145.9Pete Frost+7.430squal +5.358s106.7%qual 104.9%2:04.624Brian Schofield · fastest of 54 · top 5 within 0.6s2:04.755Bobby Sak · fastest of 53 · top 5 within 0.3s132.4Bobby Sak+14.497squal +15.513s113.1%qual 114.2%
14 rule changes (P2: 9, FC: 2, SRF3: 3)4 engine · 4 weight · 2 induction · 1 suspension & brakes · 1 tyres & wheels · 2 othershowhide
  • P2 Update Engine Table Line E notes #27414engine
  • P2 Update P2 Engine Table spec lines to reflect 3/1/2019 #27254engine
  • P2 E&O Transmissions #27006tyres & wheels
  • SRF3 SRF Dash Windscreen Kit #27028other
  • P2 Request to restrict all cars #26246weight
  • SRF3 New SRF Sectional Nose Rule Addition #26914other
  • FC E&O Wiseco piston and Crower connecting rod #26659weight
  • SRF3 SRF Brakes and Shock Rule Changes #26629suspension & brakes
  • P2 Change Engine Table Lines B.1 & B.5 #25777engine
  • P2 Change Line A.1 restrictor size #26429induction
  • FC Correct Wiseco piston and connecting rod #25809weight
  • P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595engine
  • P2 Change CN inlet restrictor implementation date #25816induction
  • P2 Clarify Honda K20A-FD2 parts requirement #25950weight
Sonoma Raceway Runoffs 20182018-10-101:28.784Tim Day Jr · fastest of 17 · top 5 within 5.0s1:32.071Chuck Bona · fastest of 18 · top 5 within 0.9s144.4Tim Day Jr1:32.571Timothy de Silva · fastest of 16 · top 5 within 1.8s1:34.053Mitch Egner · fastest of 12 · top 5 within 1.6s133.1Robert Armington+1.982squal +3.787s102.2%qual 104.3%1:28.612J 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-0.882squal -0.172s99.0%qual 99.8%1:46.117Robeson Clay Russell · fastest of 36 · top 5 within 0.5s1:47.053TJ Acker · fastest of 35 · top 5 within 0.2s110.2Steve Fogg+14.982squal +17.333s116.3%qual 119.5%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:31.826Jeff Shafer · fastest of 26 · top 5 within 4.9s1:32.481Jeff Shafer · fastest of 24 · top 5 within 3.8s1:36.336Austin McCusker · fastest of 14 · top 5 within 2.3s1:36.890Tim Minor · fastest of 14 · top 5 within 3.8s+4.409squal +4.510s104.8%qual 104.9%1:33.746Gary Hickman · fastest of 18 · top 5 within 3.3s1:33.702Alex Mayer · fastest of 17 · top 5 within 3.0s+1.221squal +1.920s101.3%qual 102.1%1:49.824John Black · fastest of 101 · top 5 within 0.5s1:49.782Tray Ayres · fastest of 94 · top 5 within 0.4s+17.301squal +17.998s118.7%qual 119.6%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:20.188Jeff Shafer · fastest of 18 · top 5 within 4.0s1:20.904Jeff Shafer · fastest of 16 · top 5 within 2.2s1:21.962John LaRue · fastest of 7 · top 5 within 2.6s1:22.049Nigel Saurino · fastest of 7 · top 5 within 3.0s+1.145squal +1.774s101.4%qual 102.2%1:19.886Alex Mayer · fastest of 10 · top 5 within 1.5s1:21.015Jeremy Hill · fastest of 10 · top 5 within 1.2s+0.111squal -0.302s100.1%qual 99.6%1:34.363John Black · fastest of 41 · top 5 within 0.5s1:34.947Cliff White · fastest of 39 · top 5 within 0.3s+14.043squal +14.175s117.4%qual 117.7%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-211:51.825Chris Farrell · fastest of 17 · top 5 within 3.6s1:52.355Jeff Shafer · fastest of 17 · top 5 within 2.8s1:54.477Yufeng Luo · fastest of 11 · top 5 within 2.5s1:55.135Yufeng Luo · fastest of 10 · top 5 within 2.1s+2.780squal +2.652s102.5%qual 102.4%1:50.711J R Osborne · fastest of 20 · top 5 within 1.1s1:51.616J R Osborne · fastest of 19 · top 5 within 2.1s-0.739squal -1.114s99.3%qual 99.0%2:08.557Kerry Jacobsen · fastest of 29 · top 5 within 1.1s2:10.215Chad Galloway · fastest of 29 · top 5 within 0.3s+17.860squal +16.732s115.9%qual 115.0%

By track

TrackEvents Typical % of P2 Best Latest 
Road America4100.0%3 of 4 with P2100.0%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 P2'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.