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BoP Lab / Classes / T3

T3 vs FF vs SM vs SMX pace at every track

Lap times across years say as much about the weather as the class. % of T3 is each class's best lap as a share of T3'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-SpecEPFAFCFE2vsFF×FPFVFXGT1GT2GTXHPPP2vsSM×vsSMX×SRF3STLSTUT1T2T3×T4Show 51 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: T3 100.0% of T3 Tom Wickersham, Daytona International Speedway Runoffs 2015 race · FF 92.2% of T3 Neil Verhagen, Mid-Ohio Sports Car Course Runoffs 2016 qualifying · SM 94.2% of T3 Travis Wiley, Virginia International Raceway Runoffs 2022 race · SMX 104.8% of T3 Ethan Jacobs, Road America Runoffs 2024 race

1:402:002:202:4036 rule changes between Runoffs 2018 and Runoffs 201936 ▾32 rule changes between Runoffs 2019 and Runoffs 202032 ▾23 rule changes between Runoffs 2020 and Runoffs 202123 ▾32 rule changes between Runoffs 2021 and Runoffs 202232 ▾30 rule changes between Runoffs 2022 and Runoffs 202330 ▾51 rule changes between Runoffs 2023 and Runoffs 202451 ▾37 rule changes between Runoffs 2024 and Runoffs 202537 ▾38 rule changes between Runoffs 2025 and Runoffs 202638 ▾T3 race best at Runoffs 2015: 2:08.363 (Tom Wickersham)T3 race best at Runoffs 2016: 1:37.371 (Robert Schader)T3 race best at Runoffs 2017: 1:53.286 (Charles Hurley)T3 race best at Runoffs 2018: 1:49.610 (Mark Drennan)T3 race best at Runoffs 2019: 2:05.354 (Broderick Bauguess)T3 race best at Runoffs 2020: 2:31.688 (Marshall Mast)T3 race best at Runoffs 2021: 1:52.701 (Breton Williams)T3 race best at Runoffs 2022: 2:27.626 (Marshall Mast)T3 race best at Runoffs 2023: 2:05.854 (Chris Hart)T3 race best at Runoffs 2024: 2:29.191 (Marshall Mast)T3 race best at Runoffs 2025: 2:29.898 (Marshall Mast)T3 race best at Runoffs 2026: 2:27.540 (Scotty B White)T3 qualifying best at Runoffs 2015: 2:08.573 (Scotty B White)T3 qualifying best at Runoffs 2016: 1:36.741 (Charles Hurley)T3 qualifying best at Runoffs 2017: 1:52.214 (Rob Hines)Off the chart: T3 qualifying best at Runoffs 2018: 1:10.656 (Mark Drennan)T3 qualifying best at Runoffs 2019: 2:04.918 (Marshall Mast)T3 qualifying best at Runoffs 2020: 2:29.757 (Marshall Mast)T3 qualifying best at Runoffs 2021: 1:51.591 (Marshall Mast)T3 qualifying best at Runoffs 2022: 2:04.223 (Jason Ott)T3 qualifying best at Runoffs 2023: 2:04.520 (Steve Ott)T3 qualifying best at Runoffs 2024: 2:25.450 (Scotty B White)T3 qualifying best at Runoffs 2025: 2:28.676 (Nic Hammann)T3 qualifying best at Runoffs 2026: 2:27.890 (Nic Hammann)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)SM race best at Runoffs 2015: 2:24.067 (Todd Lamb)SM race best at Runoffs 2016: 1:40.764 (Michael Carter)SM race best at Runoffs 2017: 1:59.100 (Michael Gagliardo)SM race best at Runoffs 2018: 1:55.278 (Michael Carter)SM race best at Runoffs 2019: 2:16.459 (Elivan Goulart)SM race best at Runoffs 2020: 2:43.748 (Preston Pardus)SM race best at Runoffs 2021: 1:58.837 (Brian Henderson)SM race best at Runoffs 2022: 2:19.107 (Travis Wiley)SM race best at Runoffs 2023: 2:16.229 (Julian DaCosta)SM race best at Runoffs 2024: 2:41.486 (Brett Kowalski)SM race best at Runoffs 2025: 2:44.430 (Kyle Greenhill)SM race best at Runoffs 2026: 2:42.725 (Francisco Barroso)SM qualifying best at Runoffs 2015: 2:18.661 (Andrew Carbonell)SM qualifying best at Runoffs 2016: 1:40.514 (Justin Hille)SM qualifying best at Runoffs 2017: 1:58.306 (Chris Haldeman)SM qualifying best at Runoffs 2018: 1:54.355 (Ken Sutherland)SM qualifying best at Runoffs 2019: 2:14.552 (Todd Buras)SM qualifying best at Runoffs 2020: 2:42.209 (Kyle Greenhill)SM qualifying best at Runoffs 2021: 1:57.695 (Brian Henderson)SM qualifying best at Runoffs 2022: 2:14.664 (Danny Steyn)SM qualifying best at Runoffs 2023: 2:14.986 (Danny Steyn)SM qualifying best at Runoffs 2024: 2:41.106 (Ethan Goulart)SM qualifying best at Runoffs 2025: 2:43.111 (Bobby Gossett)SM qualifying best at Runoffs 2026: 2:42.173 (Brett Kowalski)SMX race best at Runoffs 2023: 2:12.616 (Noah Harmon)SMX race best at Runoffs 2024: 2:36.278 (Ethan Jacobs)SMX race best at Runoffs 2025: 2:37.091 (Michael Tinis)SMX race best at Runoffs 2026: 2:36.414 (Cam Ebben)SMX qualifying best at Runoffs 2023: 2:11.435 (Nathan Nicholson)SMX qualifying best at Runoffs 2024: 2:35.651 (Ethan Lampe)SMX qualifying best at Runoffs 2025: 2:36.232 (Cam Ebben)SMX qualifying best at Runoffs 2026: 2:36.472 (Skyler Cottrell)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
T3FFSMSMXsolid race · dashed qualifying · slower is lower
95%100%105%110%36 rule changes between Runoffs 2018 and Runoffs 201936 ▾32 rule changes between Runoffs 2019 and Runoffs 202032 ▾23 rule changes between Runoffs 2020 and Runoffs 202123 ▾32 rule changes between Runoffs 2021 and Runoffs 202232 ▾30 rule changes between Runoffs 2022 and Runoffs 202330 ▾51 rule changes between Runoffs 2023 and Runoffs 202451 ▾37 rule changes between Runoffs 2024 and Runoffs 202537 ▾38 rule changes between Runoffs 2025 and Runoffs 202638 ▾T3 race best at Runoffs 2015: 100.0% of T3's (Tom Wickersham)T3 race best at Runoffs 2016: 100.0% of T3's (Robert Schader)T3 race best at Runoffs 2017: 100.0% of T3's (Charles Hurley)T3 race best at Runoffs 2018: 100.0% of T3's (Mark Drennan)T3 race best at Runoffs 2019: 100.0% of T3's (Broderick Bauguess)T3 race best at Runoffs 2020: 100.0% of T3's (Marshall Mast)T3 race best at Runoffs 2021: 100.0% of T3's (Breton Williams)T3 race best at Runoffs 2022: 100.0% of T3's (Marshall Mast)T3 race best at Runoffs 2023: 100.0% of T3's (Chris Hart)T3 race best at Runoffs 2024: 100.0% of T3's (Marshall Mast)T3 race best at Runoffs 2025: 100.0% of T3's (Marshall Mast)T3 race best at Runoffs 2026: 100.0% of T3's (Scotty B White)T3 qualifying best at Runoffs 2015: 100.0% of T3's (Scotty B White)T3 qualifying best at Runoffs 2016: 100.0% of T3's (Charles Hurley)T3 qualifying best at Runoffs 2017: 100.0% of T3's (Rob Hines)T3 qualifying best at Runoffs 2018: 100.0% of T3's (Mark Drennan)T3 qualifying best at Runoffs 2019: 100.0% of T3's (Marshall Mast)T3 qualifying best at Runoffs 2020: 100.0% of T3's (Marshall Mast)T3 qualifying best at Runoffs 2021: 100.0% of T3's (Marshall Mast)T3 qualifying best at Runoffs 2022: 100.0% of T3's (Jason Ott)T3 qualifying best at Runoffs 2023: 100.0% of T3's (Steve Ott)T3 qualifying best at Runoffs 2024: 100.0% of T3's (Scotty B White)T3 qualifying best at Runoffs 2025: 100.0% of T3's (Nic Hammann)T3 qualifying best at Runoffs 2026: 100.0% of T3's (Nic Hammann)FF race best at Runoffs 2015: 96.1% of T3's (Rick Payne)FF race best at Runoffs 2016: 92.6% of T3's (Neil Verhagen)FF race best at Runoffs 2017: 92.3% of T3's (Jonathon Kotyk)FF race best at Runoffs 2018: 93.1% of T3's (Jonathon Kotyk)FF race best at Runoffs 2019: 112.1% of T3's (Jonathan Kotyk)FF race best at Runoffs 2020: 95.1% of T3's (Jeffrey Bartz)FF race best at Runoffs 2021: 102.6% of T3's (Jonathan Kotyk)FF race best at Runoffs 2022: 93.7% of T3's (Jonathan Kotyk)FF race best at Runoffs 2023: 95.8% of T3's (Jonathan Kotyk)FF race best at Runoffs 2024: 95.2% of T3's (Sebastian Mateo Naranjo)FF race best at Runoffs 2025: 97.1% of T3's (Calvin Kautz)FF race best at Runoffs 2026: 97.4% of T3's (Nathan Down)FF qualifying best at Runoffs 2015: 95.3% of T3's (Tim Kautz)FF qualifying best at Runoffs 2016: 92.2% of T3's (Neil Verhagen)FF qualifying best at Runoffs 2017: 93.2% of T3's (Zach Holden)Off the chart: FF qualifying best at Runoffs 2018: 143.8% of T3's (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 95.7% of T3's (Tyler O'Connor)FF qualifying best at Runoffs 2020: 95.4% of T3's (Simon Sikes)FF qualifying best at Runoffs 2021: 93.5% of T3's (Jonathan Kotyk)FF qualifying best at Runoffs 2022: 96.0% of T3's (Jonathan Kotyk)FF qualifying best at Runoffs 2023: 95.8% of T3's (Nolan Allaer)FF qualifying best at Runoffs 2024: 98.0% of T3's (Calvin Kautz)FF qualifying best at Runoffs 2025: 97.5% of T3's (Jonathan Kotyk)FF qualifying best at Runoffs 2026: 96.7% of T3's (David Ybarra)SM race best at Runoffs 2015: 112.2% of T3's (Todd Lamb)SM race best at Runoffs 2016: 103.5% of T3's (Michael Carter)SM race best at Runoffs 2017: 105.1% of T3's (Michael Gagliardo)SM race best at Runoffs 2018: 105.2% of T3's (Michael Carter)SM race best at Runoffs 2019: 108.9% of T3's (Elivan Goulart)SM race best at Runoffs 2020: 108.0% of T3's (Preston Pardus)SM race best at Runoffs 2021: 105.4% of T3's (Brian Henderson)SM race best at Runoffs 2022: 94.2% of T3's (Travis Wiley)SM race best at Runoffs 2023: 108.2% of T3's (Julian DaCosta)SM race best at Runoffs 2024: 108.2% of T3's (Brett Kowalski)SM race best at Runoffs 2025: 109.7% of T3's (Kyle Greenhill)SM race best at Runoffs 2026: 110.3% of T3's (Francisco Barroso)SM qualifying best at Runoffs 2015: 107.8% of T3's (Andrew Carbonell)SM qualifying best at Runoffs 2016: 103.9% of T3's (Justin Hille)SM qualifying best at Runoffs 2017: 105.4% of T3's (Chris Haldeman)Off the chart: SM qualifying best at Runoffs 2018: 161.8% of T3's (Ken Sutherland)SM qualifying best at Runoffs 2019: 107.7% of T3's (Todd Buras)SM qualifying best at Runoffs 2020: 108.3% of T3's (Kyle Greenhill)SM qualifying best at Runoffs 2021: 105.5% of T3's (Brian Henderson)SM qualifying best at Runoffs 2022: 108.4% of T3's (Danny Steyn)SM qualifying best at Runoffs 2023: 108.4% of T3's (Danny Steyn)SM qualifying best at Runoffs 2024: 110.8% of T3's (Ethan Goulart)SM qualifying best at Runoffs 2025: 109.7% of T3's (Bobby Gossett)SM qualifying best at Runoffs 2026: 109.7% of T3's (Brett Kowalski)SMX race best at Runoffs 2023: 105.4% of T3's (Noah Harmon)SMX race best at Runoffs 2024: 104.8% of T3's (Ethan Jacobs)SMX race best at Runoffs 2025: 104.8% of T3's (Michael Tinis)SMX race best at Runoffs 2026: 106.0% of T3's (Cam Ebben)SMX qualifying best at Runoffs 2023: 105.6% of T3's (Nathan Nicholson)SMX qualifying best at Runoffs 2024: 107.0% of T3's (Ethan Lampe)SMX qualifying best at Runoffs 2025: 105.1% of T3's (Cam Ebben)SMX qualifying best at Runoffs 2026: 105.8% of T3's (Skyler Cottrell)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
T3FFSMSMXsolid race · dashed qualifying · each class's best lap as a share of T3's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventT3FFSMSMX
Qual best Race best Trap Qual best Race best Trap vs T3 % of T3 Qual best Race best Trap vs T3 % of T3 Qual best Race best Trap vs T3 % of T3 
Road America Runoffs 20262026-09-282:27.890Nic Hammann · fastest of 12 · top 5 within 4.0s-0.786s (-0.53%)2:27.540Scotty B White · fastest of 12 · top 5 within 4.8s-2.358s (-1.57%)138.4Nic Hammann+0.2 mph (+0.2%)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%)-3.854squal -4.843s97.4%qual 96.7%2:42.173Brett Kowalski · fastest of 34 · top 5 within 0.3s-0.938s (-0.58%)2:42.725Francisco Barroso · fastest of 35 · top 5 within 0.2s-1.705s (-1.04%)119.6Wyatt Couch+0.3 mph (+0.3%)+15.185squal +14.283s110.3%qual 109.7%2:36.472Skyler Cottrell · fastest of 21 · top 5 within 0.4s+0.240s (+0.15%)2:36.414Cam Ebben · fastest of 21 · top 5 within 1.1s-0.677s (-0.43%)128.4Christian Hoagland-0.6 mph (-0.5%)+8.874squal +8.582s106.0%qual 105.8%
38 rule changes (T3: 32, FF: 2, SM: 2, SMX: 2)8 tyres & wheels · 8 weight · 6 suspension & brakes · 2 cars added · 2 induction · 1 aero · 1 engine · 1 removed · 2 wording · 7 othershowhide
  • T3 T3 Subaru STI 2015-2021 #40708weight
  • T3 Porsche 986 Boxster S (00-04) Spec Line Additions for Suspension #40307suspension & brakes
  • T3 Allow a Change in Rear Axle #40507other
  • FF Clarification in FF Kent 1600 Compression Ratio Paragraph #40293engine
  • SM Rear Toe Link #40271other
  • SMX Rear Toe Link #40271other
  • T3 Ford FR500S #40031cars added
  • T3 Audi S4 T3 #40241suspension & brakes
  • T3 VW DSG Missing in 2015-2018 VW Golf R Spec Line #40304weight
  • T3 2015+ Mustang Ecoboost Performance #40036suspension & brakes
  • T3 Review Spec Lines for Camaro V-6 #40149removed -150 lbs
  • T3 Power of GR86/BRZ in T3 #40169weight -225 lbs
  • T3 Allow T3 Ford Mustang 4.6 to Use the Coyote MT-82 6 speed. #40190other
  • T3 Porsche 986S Boxster S (2000-2004) Minimum Weight #40196weight
  • T3 2019 Mustang 2.3L Ecoboost Request #39935weight -50 lbs
  • T3 2013 Audi S4 #39983induction
  • T3 Request Update to T3 Camaro V6 (10-15) Spec Line #40007tyres & wheels
  • T3 S550 Mustang 3.7 #40010aero
  • SM Part Number Change Request #39914wording
  • SMX Part Number Change Request #39914wording
  • T3 350Z #39843induction
  • T3 Nissan 370Z Tire Size #39701tyres & wheels
  • T3 986 Boxster S Wheel Width #39819tyres & wheels
  • T3 Request Update to T3 Camaro V6 (10-15) Spec Line #39839tyres & wheels
  • T3 Audi S4 #39870cars added
  • T3 Please change 2011-2014 Mustang V6 Spec Line to 2005-2014 #39558other
  • T3 Nissan 350Z Weight Request #39598weight -25 lbs
  • T3 Allow Alt Bushing Material in Toe Links #39607suspension & brakes
  • FF Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheels
  • T3 Request to Allow Spec Mustang to Touring 3 in Appendix M Trim #39196weight -50 lbs
  • T3 Tire Help for Spec E9X in T3 #39222tyres & wheels
  • T3 SpecE46 Tire Sizing #39292tyres & wheels
  • T3 Alternate Placement of Fuse Panel and Electronics Request #39370other
  • T3 Clarify T4 Brake Rotor Allowance #39503suspension & brakes
  • T3 T3 Ecoboost Mustang clarification #39236suspension & brakes
  • T3 Make the S2000 Competitive Again #38470tyres & wheels
  • T3 ND Gearset Request for T4 #39166other
  • T3 ND Spec Lines Wrong PT#'s #39170weight
Road America Runoffs 20252025-09-292:28.676Nic Hammann · fastest of 19 · top 5 within 1.8s+3.226s (+2.22%)2:29.898Marshall Mast · fastest of 19 · top 5 within 2.9s+0.707s (+0.47%)138.2Marshall Mast-13.0 mph (-8.6%)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%)-4.357squal -3.771s97.1%qual 97.5%2:43.111Bobby Gossett · fastest of 32 · top 5 within 0.3s+2.005s (+1.24%)2:44.430Kyle Greenhill · fastest of 28 · top 5 within 0.3s+2.944s (+1.82%)119.3Francisco Barroso-0.6 mph (-0.5%)+14.532squal +14.435s109.7%qual 109.7%2:36.232Cam Ebben · fastest of 20 · top 5 within 0.2s+0.581s (+0.37%)2:37.091Michael Tinis · fastest of 19 · top 5 within 0.3s+0.813s (+0.52%)129.1Camden Gruber-0.4 mph (-0.3%)+7.193squal +7.556s104.8%qual 105.1%
37 rule changes (T3: 24, FF: 4, SM: 4, SMX: 5)6 cars added · 6 tyres & wheels · 5 weight · 4 induction · 2 engine · 2 suspension & brakes · 5 wording · 7 othershowhide
  • T3 Incorrect Touring Heading #38451wording
  • T3 correct letter 37421 #38204wording
  • SM SMX Data Submission - Penalties #38248other
  • SM SMX Penaly Clarification updated language #38337wording
  • SMX SMX Data Submission - Penalties #38248other
  • SMX SMX Penaly Clarification updated language #38337wording
  • FF Page 228, FF tire rule 9.1.1.10.e #38251tyres & wheels
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • SMX Clarify Tire Marking Regs #38004tyres & wheels
  • SMX SMX Data Submission Timeframe #38039other
  • T3 S550 Mustang #38061weight -50 lbs
  • T3 correct letter 37421 #38204wording
  • T3 SpecE46 Tire Change #37421tyres & wheels
  • T3 S197 Mustang V6 in T3 #37594weight -25 lbs
  • FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheels
  • T3 350z BOP #37427induction
  • T3 Request to Classify Club Spec in Appropriate Touring Classes #37523cars added
  • T3 Remove spec lines that have expired #37269induction
  • T3 Request to Move Spec Mustang to Touring 3 (from T2) #37080cars added
  • T3 3.7 Mustangs BoP #37186induction
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • T3 Amend TIR Placement on VW #36175induction
  • T3 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft #36484suspension & brakes
  • T3 Fuel Emissions Components #37076engine
  • T3 fix brake wording #37129suspension & brakes
  • T3 Evaporative emissions systems #37130engine
  • T3 Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision #37140other
  • T3 Move Spec Boxster to T4 #37158cars added
  • T3 BMW 320i Spec Line #37204other
  • T3 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual #37224cars added
  • T3 Request to Classify BMWs #37226cars added
  • T3 Make adjustments to the 2015 STI Spec line #37246tyres & wheels
  • T3 class a civic #37294cars added
  • T3 Older STI in T3 #37300weight -100 lbs
  • FF Change FF/FC Weight with Sequential Gearbox #36651weight
  • FF Alternative Oversize Honda Fit Pistons #37064weight
Road America Runoffs 20242024-10-012:25.450Scotty B White · fastest of 22 · top 5 within 4.5s-4.307s (-2.88%)2:29.191Marshall Mast · fastest of 21 · top 5 within 1.8s-2.497s (-1.65%)151.2Scotty B White+13.1 mph (+9.5%)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%)-7.134squal -2.898s95.2%qual 98.0%2:41.106Ethan Goulart · fastest of 49 · top 5 within 0.5s-1.103s (-0.68%)2:41.486Brett Kowalski · fastest of 43 · top 5 within 0.3s-2.262s (-1.38%)119.9Alex Bertagnoli-1.4 mph (-1.2%)+12.295squal +15.656s108.2%qual 110.8%2:35.651Ethan Lampe · fastest of 23 · top 5 within 0.7s2:36.278Ethan Jacobs · fastest of 22 · top 5 within 0.7s129.5Michael Borden+7.087squal +10.201s104.8%qual 107.0%
51 rule changes (T3: 41, FF: 2, SM: 4, SMX: 4)9 induction · 8 weight · 7 suspension & brakes · 5 cars added · 4 engine · 2 tyres & wheels · 2 wording · 14 othershowhide
  • FF Update to FF EGR Blanking Plate Rule #36633engine
  • SM SMX Camera Rule Correction #36496wording
  • SM AIM ECU Protocol #36556engine
  • SM OE versus OEM Definitons #36608other
  • SM Shifter Bushing #36611suspension & brakes
  • SMX SMX Camera Rule Correction #36496wording
  • SMX AIM ECU Protocol #36556engine
  • SMX OE versus OEM Definitons #36608other
  • SMX Shifter Bushing #36611suspension & brakes
  • T3 Honda Civic Si (2017+) #36249weight
  • T3 Subaru Reliability Help #36284other
  • T3 spec line for 36073 #36338cars added
  • T3 36131 #36339cars added
  • T3 Mustang T2/T3 #35877other
  • T3 T2-T4 Driveshaft Mistake...? #36050weight
  • T3 E&O: #35174 (Derek Chan) 350Z Parity Request #36116induction
  • T3 B8/8.5 Audi S4 T3 and T2 #36195cars added
  • T3 Z4 Roadster Eligibility #36196other
  • T3 Global MX5 Tre change #36046tyres & wheels
  • T3 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj. #35761engine
  • T3 Driveshafts #35916weight
  • T3 Audi S4 HST requirement #35918other
  • T3 Spec Z Interchange in T3 #34416induction
  • T3 please classify 2000-2002 Audi s4 #35306cars added
  • T3 Reorganize Spec Lines #35375induction
  • T3 370Z Brake Rotor Size Correction #35487suspension & brakes
  • T3 T3 V6 Mustang help #35526induction
  • T3 Nissan 370Z - Brake System Allowance - Brake Booster #35556suspension & brakes
  • T3 Mustang Help #35559induction
  • T3 Appeal for Retention of T3 Mazda RX-8 Spec Line (Letter #35378) #35577other
  • T3 Request to Keep the Mazda Rx-8 in Touring 3 #35584other
  • T3 Subaru WRX (02-05) Appeal #35656other
  • T3 15-18 Golf R Alignment with Existing GTI and R Speclines #35235tyres & wheels
  • T3 More Car Lightening Stuff #35319weight
  • T3 Open Strut Tower Brace Options for Ford Mustang V6 (11-14) #35322suspension & brakes
  • T3 Mustang ecoboost #35351induction
  • T3 Inclusion of B-C spec cars in T4 #35374other
  • T3 T2-T4 Set expiration dates on spec lines #35378induction
  • FF Honda Fit Oversize Piston Rings #35305other
  • T3 T3 Solstice Brakes #35106suspension & brakes
  • T3 350Z Parity Request #35174weight
  • T3 Requested Update of Model Years of 370Z #35231other
  • T3 Update Request for 2010 Mustang GT 4.6 #35234other
  • T3 SE46 Continued Parity/ Cold Air Intake request #35267induction -50 lbs
  • T3 Please help the Subaru STIs. #35278weight +100 lbs
  • T3 Porsche Cayman Transmissions and Ratios #34891weight
  • T3 2006-10 Volkswagen GTI - Weight Reduction request and KO4 Turbo #34414weight
  • T3 Adding Model Years to T3 Golf R Spec Line #34612other
  • T3 Rear Camber Arms for T3 VW Golf R #34613suspension & brakes
  • T3 Classing Spec E90 Cars in SCCA #34791cars added
  • T3 TIR location requirement in VW Golf Spec lines #35048induction
Virginia International Raceway Runoffs 20232023-09-232:04.520Steve Ott · fastest of 18 · top 5 within 1.9s+0.297s (+0.24%)2:05.854Chris Hart · fastest of 18 · top 5 within 1.8s-21.772s (-14.75%)139.1Jason Ott-1.1 mph (-0.8%)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%)-5.271squal -5.271s95.8%qual 95.8%2:14.986Danny Steyn · fastest of 52 · top 5 within 0.1s+0.322s (+0.24%)2:16.229Julian DaCosta · fastest of 46 · top 5 within 0.3s-2.878s (-2.07%)120.3Jim Drago+1.1 mph (+0.9%)+10.375squal +10.466s108.2%qual 108.4%2:11.435Nathan Nicholson · fastest of 18 · top 5 within 0.6s2:12.616Noah Harmon · fastest of 16 · top 5 within 0.1s127.8Noah Harmon+6.762squal +6.915s105.4%qual 105.6%
30 rule changes (T3: 28, FF: 1, SM: 1)10 weight · 4 cars added · 4 tyres & wheels · 2 suspension & brakes · 1 engine · 1 induction · 1 removed · 1 wording · 6 othershowhide
  • T3 2012-2013 Golf R - added to T3 #34413cars added
  • T3 Rules Clarification for Mazda RX8 Spec Line #34395weight
  • T3 rule book corrections #34437wording
  • T3 Allowing 255 Tire Width for Nissan 350z #34471tyres & wheels
  • T3 Ride Height Correction for the T3 Solstice. #34615suspension & brakes
  • T3 2016+ Camaro 1LE - Max Wheel Diameter #34003tyres & wheels
  • T3 2022 Toyota GR Cup for T3 #34448removed
  • T3 S550 Reconcile With S197 #34093weight -75 lbs
  • T3 SE46 Parity Help #34178weight -50 lbs
  • T3 2022 Toyota GR Cup for T3 discussion #34234cars added
  • T3 Request Spec E46 in T3 Weight Adjustment #33897weight -25 lbs
  • T3 E36 2.5L 323is Weight Reduction #33975weight
  • T3 Update SpecE46 Spec Line to Current SpecE46 Ruleset #34016other
  • T3 Request to all ECS Tuning inner-cooler to 06-10 VW GTI spec #33769other
  • FF Add Fast Forward Part Numbers for Honda Fit Engine #33752engine
  • T3 T3 Boxster S GCR request #33687tyres & wheels
  • T3 OEM VW Steering Spindle Replacements 06-10 VW GTI and Jetta #33732other
  • T3 BMW 320I intercooler #33762other
  • T3 Request to classify 2014 Base Cayman #33159cars added
  • T3 Mustang OEM Grill Request #33333other
  • T3 Hyundai Classification #33498cars added
  • T3 Adjustable Rear Camber Arms for VW (All Generations) #33572suspension & brakes
  • SM BOP for NB1 and NB2 #32309weight
  • T3 350z SPC Upper Control Arm Safety Concerns #33020weight
  • T3 Request Help for 350z #33379weight -100 lbs
  • T3 Ecoboost Acknowledgement #33506induction
  • T3 Touring (T2-T5) Category #33617tyres & wheels
  • T3 ENO 9.1.9.2.D.1.e.1.a. #33651other
  • T3 Solstice GXP in T3 #33501weight
  • T3 Another 2022 BRZ/86 T3 request #32945weight +225 lbs
Virginia International Raceway Runoffs 20222022-09-242:04.223Jason Ott · fastest of 20 · top 5 within 2.1s-0.695s (-0.56%)2:27.626Marshall Mast · fastest of 19 · top 5 within 4.1s+22.272s (+17.77%)140.2Jason Ott+2.0 mph (+1.4%)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%)-9.268squal -5.008s93.7%qual 96.0%2:14.664Danny Steyn · fastest of 60 · top 5 within 0.2s+0.112s (+0.08%)2:19.107Travis Wiley · fastest of 58 · top 5 within 0.9s+2.648s (+1.94%)119.2Jonathan Neudorf-0.6 mph (-0.5%)-8.519squal +10.441s94.2%qual 108.4%
32 rule changes (T3: 31, SM: 1)10 weight · 5 cars added · 5 suspension & brakes · 2 induction · 1 aero · 1 engine · 1 tyres & wheels · 3 wording · 4 othershowhide
  • T3 S2000 Hard Top Clarification #32779wording
  • T3 T3 Pontiac Solstice- #33081induction
  • T3 Classify Car #32691cars added
  • T3 2022 BRZ Sway bar and lip spoiler. #32703aero
  • T3 correct wording #31750weight
  • T3 2005-2008 Porsche Boxster 2.7 #31999cars added
  • T3 Request Alternate Front & Rear Strut/Shock Top Hats #32452suspension & brakes
  • T3 2022 Subaru BRZ and Toyota 86 twins #32483weight
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • T3 Request to Allow the Use of Aftermarket ECU's in Touring #31067engine
  • T3 T3 Mustang V8/V6 #31959weight -50 lbs
  • T3 Subaru STI (15-20) Missing part #32294other
  • T3 Touring 3 BOP adjustments for 2022 #31481weight +75 lbs
  • T3 BMW 330i Minimum Comp Weight #31606weight -60 lbs
  • T3 Adjust T3 370Z #31748weight +50 lbs
  • T3 TIR changes for FWD T3 models #31825induction
  • T3 Reply to letter #31486/29879 T2-T4 Grill openings #31935suspension & brakes
  • T3 BRZ vs BRZ TS #32022tyres & wheels
  • T3 Remove StopTech 4 piston BBK, allow any 4 Piston Kit - VW GTI #33082weight
  • T3 Request FRS/BRZ/86 T3 Weight Reduction #30818weight -75 lbs
  • T3 Request to Classify 2022 Toyota 86 / Subaru in T3 & T4 #30931cars added
  • T3 Reply to letter 29879 T2-T4 Grill Openings #31486suspension & brakes
  • T3 Please Adjust Years Allowed for BMW 335i to 07-10, not 08-13 #31530other
  • T3 Please Adjust Years Allowed for BMW 135i to 08-10, not 08-13 #31531other
  • T3 Request to clarify radiator hoses #31682wording
  • T3 T3 Nissan Z Suspension Update #31728other
  • T3 Clarify Permitted/Allowed #31743suspension & brakes
  • T3 Request to correct model years BMW Z4 M Coupe #31371wording
  • T3 Correct letter the 31327 #31563weight +150 lbs
  • T3 Request to Classify 2014 VW Jetta 1.8t TSI #30436cars added
  • T3 Request Weight Reduction 323is #30765weight -100 lbs
  • T3 Class Newer STI in T3 #31327cars added
Indianapolis Motor Speedway Runoffs 20212021-09-251:51.591Marshall Mast · fastest of 23 · top 5 within 0.9s-0.623s (-0.56%)1:52.701Breton Williams · fastest of 22 · top 5 within 0.7s-0.585s (-0.52%)136.4Jason Ott1:44.359Jonathan 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+2.975squal -7.232s102.6%qual 93.5%1:57.695Brian Henderson · fastest of 90 · top 5 within 0.5s-0.611s (-0.52%)1:58.837Brian Henderson · fastest of 88 · top 5 within 0.3s-0.263s (-0.22%)119.8Kyle Greenhill+6.136squal +6.104s105.4%qual 105.5%
23 rule changes (T3: 19, FF: 3, SM: 1)3 cars added · 3 weight · 2 engine · 2 tyres & wheels · 1 induction · 1 suspension & brakes · 1 wording · 10 othershowhide
  • T3 Follow-up to letter 29797-Porsche Spec Boxster in T3 Adjustment #30144weight -50 lbs
  • T3 Wheel Size #30677tyres & wheels
  • T3 Request weight adder to be applied to the Global Cup Miata ND2 #30730weight
  • T3 Civic Type R Brake Rotors #29817suspension & brakes
  • T3 Requesting Variance on Hardtop #30093other
  • T3 07-09 and 10-13 Mazdaspeed 3 Fuel Pump #30154other
  • FF Kent crankshaft clarification #30426wording
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • T3 Request consistency review in GCR #30263other
  • T3 Request to classify 2006-2008 Cayman #30315cars added
  • T3 2020 T3 Suggested Changes #30002weight -50 lbs
  • T3 2021 Toyota Supra #29567cars added
  • T3 Chevrolet Camaro LT-I4 Turbo 1LE (2019-) Model Year to 2016- #30090induction
  • T3 Fix T2 Mustang spec line #30106other
  • T3 Spec Boxster Tire Size #30159tyres & wheels
  • T3 Request to Classify BMW M2 CS #29523cars added
  • T3 Allow the SpecMX-5 Update Kit Into Touring 4 for the MX-5 #29681other
  • T3 350Z Rear Caliper Replacement #29710other
  • T3 Request Mustang 8.8” rear axle replacement #29860other
  • T3 Cap year range on all 86s #29908other
  • FF Allow Optional Coolant Bleed Line to Correct a Known Problem #29673engine
  • FF Clarification regarding Honda LC1 ECU implementation date #29684engine
  • T3 Alfa Romeo 4C Launch Edition #29531other
Road America Runoffs 20202020-10-022:29.757Marshall Mast · fastest of 29 · top 5 within 2.1s2:31.688Marshall Mast · fastest of 20 · top 5 within 1.8s138.1Jason Ott2:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s138.1Jeffrey Bartz-7.420squal -6.841s95.1%qual 95.4%2:42.209Kyle Greenhill · fastest of 77 · top 5 within 0.5s2:43.748Preston Pardus · fastest of 75 · top 5 within 1.0s121.3Kyle Greenhill+12.060squal +12.452s108.0%qual 108.3%
32 rule changes (T3: 26, FF: 4, SM: 2)6 weight · 5 cars added · 5 engine · 4 tyres & wheels · 2 induction · 2 suspension & brakes · 3 wording · 5 othershowhide
  • SM Radiator E&O Clarifications #29294engine
  • T3 Request to Classify Honda Civic Type R in T3 #27840cars added
  • FF Clarification regarding Honda LC1 ECU implementation #29135engine
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • T3 Request to classify 2009 Honda Accord v6 manual #28913cars added
  • T3 SADEV Sequential Gearbox #28763other
  • T3 Request for competition adjustment for the MK5 GTI FSI engine #28802engine
  • T3 Request to Add a Vehicle to the Roster (contd.) #27698other
  • T3 Request to Classify 2004 Mercedes Benz 320 CLK #27663cars added
  • T3 Request Nissan 350Z Part Number change #28145induction
  • T3 2015 + Ford EcoBoost Mustang Sway Bars #28398suspension & brakes
  • T3 Z3M Roadster Weight #28437weight
  • 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
  • T3 Clarify 05-10 V8 Mustang Spring Rates Wording/Adjust Restrictor #28238induction
  • T3 Correct Touring 3 05-10 Mustang final drive #28288wording
  • T3 2006 BMW E90 330i Sedan Classification #26663weight
  • T3 Please Switch the Solstice GXP as Specified in T2, to T3 #27413weight -50 lbs
  • T3 Request to Classify all Mazda RX8 Models in T3/T4 #27606cars added
  • T3 Request for 2005 Subaru STI Changes #27658tyres & wheels +50 lbs
  • T3 Request to Classify 2017 Ford Fiesta ST #27700cars added
  • T3 Clarification of On-Board Fire System for T2 #27183wording
  • T3 Mustang Ecoboost and GT Transmission #27439other
  • T3 Nissan 350Z HR Engine Restrictor Plate/Minimum Weight #27442weight +50 lbs
  • T3 Request help for the GMX5 #27572tyres & wheels
  • T3 Request for 05-10 Mustang GT Suspension Upgrades #27777weight
  • T3 Please Update the BMW SpecE46 Rules #27781tyres & wheels
  • T3 Request for 02-03 WRX Spec Line Parts #27864weight -100 lbs
  • T3 T4 RX8 Classification Error #27902wording
  • T3 Request to add Toyota 86 GT to Spec Line #27910other
  • T3 Request to add 2018 Subaru BRZ in T3 #27253other
Virginia International Raceway Runoffs 20192019-10-052:04.918Marshall Mast · fastest of 20 · top 5 within 1.1s2:05.354Broderick Bauguess · fastest of 20 · top 5 within 1.6s138.2Scotty B White1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s136.2Derek Ketchie+15.120squal -5.355s112.1%qual 95.7%2:14.552Todd Buras · fastest of 60 · top 5 within 0.2s2:16.459Elivan Goulart · fastest of 56 · top 5 within 0.4s119.8Jim Drago+11.105squal +9.634s108.9%qual 107.7%
36 rule changes (T3: 29, FF: 3, SM: 4)10 weight · 7 cars added · 5 suspension & brakes · 4 tyres & wheels · 3 engine · 1 induction · 1 removed · 2 wording · 3 othershowhide
  • T3 Request Mazda NC MX-5 alternate transmission gear ratios #27155other
  • T3 Request spare tire/wheel clarification #27012tyres & wheels
  • T3 Request guidance for 2014-2017 MK7 Volkswagen GTI #26866weight
  • T3 Request BMW e36 M3 sway bar and links #26885suspension & brakes
  • T3 Request to properly class base Porsche Cayman #26276weight
  • T3 Request to classify a 2019 Chevrolet Camaro LT-I4 Turbo 1LE #25731cars added
  • T3 T3 Civic Si weight change #26294weight
  • T3 Class Civic Si 2017+ w/ alternate cage #26449cars added
  • T3 Classify 2014-2017 MK7 Volkswagen GTI for T3 #26695cars added
  • T3 Request to allow E36 M3 in T3 prepared to BMWCCA I sport #25195cars added
  • SM Request to allow aftermarket fuel filters. #26370wording
  • T3 Request Mustang GT Limited Prep 2018 Classification #24431cars added
  • T3 Classify 2015+ WRX #25832cars added
  • T3 Correct Mazda MX-5 Hard Top Notes #26137weight
  • T3 Request to allow T3 06-15 Miata 17x8 wheels #26161tyres & wheels
  • T3 Request T3 06-15 Miata header #26162other
  • T3 Request Pontiac GXP same allowances to Saturn Sky #26175weight
  • T3 Consider opening class rules to allow any thermostat #26187wording
  • T3 2005-2009 Legacy GT/Spec B #26384cars added
  • T3 Cap 2016 Mazda Miata year at 2018 #26388other
  • FF Request for Oversize Honda Fit Pistons #25810engine
  • FF Heat Shield - Fit Intake #26102induction
  • FF Request catch cans/tanks clarification #26158engine
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
  • T3 Request correction on brake sizes #26170suspension & brakes
  • T3 Errors, Omissions, and Updates (Various) #22414weight
  • T3 Request to update SpecE46 Appendix N. with 2019 Rules #25722removed
  • T3 Request Alternative Nissan Brake Parts - 350Z #25747suspension & brakes
  • T3 Add Clarification to Spec Car Classifications Vehicle Spec #25774weight
  • T3 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakes
  • T3 Additional weight adjustments for T3 cars T3 weight loss #25803weight
  • T3 Request for Alternate EcoBoost Mustang Brakes #25813suspension & brakes
  • T3 Request to Add the FR-S/86 and BRZ Spec Lines to T3 #25888weight
  • T3 Request to Clarify BMW SpecE46 Tire Verbiage #26027tyres & wheels
Sonoma Raceway Runoffs 20182018-10-101:10.656Mark Drennan · fastest of 17 · top 5 within 19.6s1:49.610Mark Drennan · fastest of 17 · top 5 within 0.4s108.4Marshall Mast1:41.612Jonathon Kotyk · fastest of 22 · top 5 within 1.7s1:42.049Jonathon Kotyk · fastest of 22 · top 5 within 1.3s115.7Denny Renfrow-7.561squal +30.956s93.1%qual 143.8%1:54.355Ken Sutherland · fastest of 48 · top 5 within 0.7s1:55.278Michael Carter · fastest of 48 · top 5 within 0.3s102.2Danny Steyn+5.668squal +43.699s105.2%qual 161.8%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:52.214Rob Hines · fastest of 24 · top 5 within 0.8s1:53.286Charles Hurley · fastest of 22 · top 5 within 0.6s1:44.601Zach Holden · fastest of 36 · top 5 within 1.2s1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s-8.762squal -7.613s92.3%qual 93.2%1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s+5.814squal +6.092s105.1%qual 105.4%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:36.741Charles Hurley · fastest of 10 · top 5 within 1.0s1:37.371Robert Schader · fastest of 10 · top 5 within 0.4s1:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s-7.238squal -7.528s92.6%qual 92.2%1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s+3.393squal +3.773s103.5%qual 103.9%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:08.573Scotty B White · fastest of 5 · top 5 within 7.9s2:08.363Tom Wickersham · fastest of 5 · top 5 within 8.3s2:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s-4.980squal -6.084s96.1%qual 95.3%2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s+15.704squal +10.088s112.2%qual 107.8%

By track

TrackEvents Typical % of T3 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 T3'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.