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BoP Lab / Classes / FE

FE vs FF vs FV vs SM pace at every track

Lap times across years say as much about the weather as the class. % of FE is each class's best lap as a share of FE'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)
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FE 100.0% of FE Scott Rettich, Daytona International Speedway Runoffs 2015 race · FF 99.5% of FE Neil Verhagen, Mid-Ohio Sports Car Course Runoffs 2016 race · FV 108.3% of FE Flinn Lazier, Mid-Ohio Sports Car Course Runoffs 2016 race · SM 111.3% of FE Michael Carter, Mid-Ohio Sports Car Course Runoffs 2016 race

1:402:002:202:4018 rule changes between Runoffs 2018 and Runoffs 201918 ▾17 rule changes between Runoffs 2019 and Runoffs 202017 ▾8 rule changes between Runoffs 2020 and Runoffs 20218 ▾9 rule changes between Runoffs 2021 and Runoffs 20229 ▾5 rule changes between Runoffs 2022 and Runoffs 20235 ▾13 rule changes between Runoffs 2023 and Runoffs 202413 ▾10 rule changes between Runoffs 2024 and Runoffs 202510 ▾6 rule changes between Runoffs 2025 and Runoffs 20266 ▾FE race best at Runoffs 2015: 1:59.040 (Scott Rettich)FE race best at Runoffs 2016: 1:30.563 (Hanna Zellers)FE race best at Runoffs 2017: 1:39.726 (Elliot Finlayson)FE race best at Runoffs 2018: 1:38.504 (Lee Rackley)FE race best at Runoffs 2019: 1:55.648 (Mark Snyder)FE qualifying best at Runoffs 2015: 1:57.824 (Scott Rettich)FE qualifying best at Runoffs 2016: 1:27.636 (Scott Rettich)FE qualifying best at Runoffs 2017: 1:39.177 (Elliot Finlayson)FE qualifying best at Runoffs 2018: 1:37.517 (Mark Snyder)FE qualifying best at Runoffs 2019: 1:54.710 (Mark Snyder)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)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)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)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
FEFFFVSMsolid race · dashed qualifying · slower is lower
100%105%110%115%120%18 rule changes between Runoffs 2018 and Runoffs 201918 ▾17 rule changes between Runoffs 2019 and Runoffs 202017 ▾8 rule changes between Runoffs 2020 and Runoffs 20218 ▾9 rule changes between Runoffs 2021 and Runoffs 20229 ▾5 rule changes between Runoffs 2022 and Runoffs 20235 ▾13 rule changes between Runoffs 2023 and Runoffs 202413 ▾10 rule changes between Runoffs 2024 and Runoffs 202510 ▾6 rule changes between Runoffs 2025 and Runoffs 20266 ▾FE race best at Runoffs 2015: 100.0% of FE's (Scott Rettich)FE race best at Runoffs 2016: 100.0% of FE's (Hanna Zellers)FE race best at Runoffs 2017: 100.0% of FE's (Elliot Finlayson)FE race best at Runoffs 2018: 100.0% of FE's (Lee Rackley)FE race best at Runoffs 2019: 100.0% of FE's (Mark Snyder)FE qualifying best at Runoffs 2015: 100.0% of FE's (Scott Rettich)FE qualifying best at Runoffs 2016: 100.0% of FE's (Scott Rettich)FE qualifying best at Runoffs 2017: 100.0% of FE's (Elliot Finlayson)FE qualifying best at Runoffs 2018: 100.0% of FE's (Mark Snyder)FE qualifying best at Runoffs 2019: 100.0% of FE's (Mark Snyder)FF race best at Runoffs 2015: 103.6% of FE's (Rick Payne)FF race best at Runoffs 2016: 99.5% of FE's (Neil Verhagen)FF race best at Runoffs 2017: 104.8% of FE's (Jonathon Kotyk)FF race best at Runoffs 2018: 103.6% of FE's (Jonathon Kotyk)FF race best at Runoffs 2019: 121.5% of FE's (Jonathan Kotyk)FF qualifying best at Runoffs 2015: 104.0% of FE's (Tim Kautz)FF qualifying best at Runoffs 2016: 101.8% of FE's (Neil Verhagen)FF qualifying best at Runoffs 2017: 105.5% of FE's (Zach Holden)FF qualifying best at Runoffs 2018: 104.2% of FE's (Jonathon Kotyk)FF qualifying best at Runoffs 2019: 104.2% of FE's (Tyler O'Connor)FV race best at Runoffs 2015: 118.6% of FE's (Andrew Whitston)FV race best at Runoffs 2016: 108.3% of FE's (Flinn Lazier)FV race best at Runoffs 2017: 116.2% of FE's (Michael Varacins)FV race best at Runoffs 2018: 115.4% of FE's (Alex Scaler)FV race best at Runoffs 2019: 119.6% of FE's (Zachary Whitston)FV qualifying best at Runoffs 2015: 119.8% of FE's (Roger Siebenaler)FV qualifying best at Runoffs 2016: 111.8% of FE's (Alex Scaler)FV qualifying best at Runoffs 2017: 116.7% of FE's (Michael Varacins)FV qualifying best at Runoffs 2018: 115.5% of FE's (Skip Streets)FV qualifying best at Runoffs 2019: 118.3% of FE's (Andrew Whitston)SM race best at Runoffs 2015: 121.0% of FE's (Todd Lamb)SM race best at Runoffs 2016: 111.3% of FE's (Michael Carter)SM race best at Runoffs 2017: 119.4% of FE's (Michael Gagliardo)SM race best at Runoffs 2018: 117.0% of FE's (Michael Carter)SM race best at Runoffs 2019: 118.0% of FE's (Elivan Goulart)SM qualifying best at Runoffs 2015: 117.7% of FE's (Andrew Carbonell)SM qualifying best at Runoffs 2016: 114.7% of FE's (Justin Hille)SM qualifying best at Runoffs 2017: 119.3% of FE's (Chris Haldeman)SM qualifying best at Runoffs 2018: 117.3% of FE's (Ken Sutherland)SM qualifying best at Runoffs 2019: 117.3% of FE's (Todd Buras)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
FEFFFVSMsolid race · dashed qualifying · each class's best lap as a share of FE's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFEFFFVSM
Qual best Race best Trap Qual best Race best Trap vs FE % of FE Qual best Race best Trap vs FE % of FE Qual best Race best Trap vs FE % of FE 
Road America Runoffs 20262026-09-282:23.047David 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%)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%)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%)
6 rule changes (FE: 2, FF: 2, SM: 2)2 engine · 1 tyres & wheels · 1 wording · 2 othershowhide
  • FF Clarification in FF Kent 1600 Compression Ratio Paragraph #40293engine
  • SM Rear Toe Link #40271other
  • SM Part Number Change Request #39914wording
  • FE FE & FE2 Rule Updates #39484engine
  • FF Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheels
  • FE FE & FE2 Bubble Tail #38978other
Road America Runoffs 20252025-09-292:24.905Jonathan 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%)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%)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%)
10 rule changes (FE: 2, FF: 4, SM: 4)3 tyres & wheels · 3 weight · 1 suspension & brakes · 1 wording · 2 othershowhide
  • FE FE & FE2 Rule Updates #38901weight
  • SM SMX Data Submission - Penalties #38248other
  • SM 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
  • FF Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheels
  • FE Brake Line to A-Arm Covers #37110suspension & brakes
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • FF Change FF/FC Weight with Sequential Gearbox #36651weight
  • FF Alternative Oversize Honda Fit Pistons #37064weight
Road America Runoffs 20242024-10-012:22.552Calvin 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%)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%)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%)
13 rule changes (FE: 5, FF: 2, FV: 2, SM: 4)3 tyres & wheels · 2 engine · 2 suspension & brakes · 2 wording · 4 othershowhide
  • FF Update to FF EGR Blanking Plate Rule #36633engine
  • FV Disc Brakes #36822suspension & brakes
  • FE Protest Fee Clarification #36540wording
  • FE Update on Letter 36620 with new Hoosier Contingency Decal Info #36625tyres & wheels
  • SM SMX Camera Rule Correction #36496wording
  • SM AIM ECU Protocol #36556engine
  • SM OE versus OEM Definitons #36608other
  • SM Shifter Bushing #36611suspension & brakes
  • FE Hoosier Tire Decal Placement #36435tyres & wheels
  • FE Update FE Rain Light Rule #34707other
  • FE FE/FE2 rule update #35269other
  • FF Honda Fit Oversize Piston Rings #35305other
  • FV FV Wheel Bearing Clarification #35150tyres & wheels
Virginia International Raceway Runoffs 20232023-09-231:59.249Nolan 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%)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%)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%)
5 rule changes (FE: 3, FF: 1, SM: 1)1 aero · 1 engine · 1 suspension & brakes · 1 weight · 1 othershowhide
  • FE Update FE SADEV Transmission Rule #33883other
  • FF Add Fast Forward Part Numbers for Honda Fit Engine #33752engine
  • SM BOP for NB1 and NB2 #32309weight
  • FE Brake bias adjuster clarification #33084suspension & brakes
  • FE FE Front and Rear Wing Update & Clarification #33089aero
Virginia International Raceway Runoffs 20222022-09-241:59.215Jonathan 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%)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%)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%)
9 rule changes (FE: 4, FV: 4, SM: 1)4 weight · 2 engine · 1 suspension & brakes · 1 tyres & wheels · 1 othershowhide
  • FE Engine Heat Shield & Insulation #33019engine
  • FE Update FE/FE2 Tire Rule #32613tyres & wheels
  • FE Master cylinder clarification #32669engine
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
  • 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
  • FV Update direct replacement connecting rod information #31843weight
  • FE Two FE2 Rule Updates #31524other
  • FV Formula V Connecting Rod Replacement #31448weight
Indianapolis Motor Speedway Runoffs 20212021-09-251:44.359Jonathan 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 Sheppard1:57.479Andrew 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 Edwards1:57.695Brian 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
8 rule changes (FE: 4, FF: 3, SM: 1)2 engine · 1 suspension & brakes · 1 tyres & wheels · 2 wording · 2 othershowhide
  • FE FE Tire Rule Changes #30754tyres & wheels
  • FE Radiator Screens Clarification #30792wording
  • FE FE Radiator Screens #30575other
  • FF Kent crankshaft clarification #30426wording
  • SM Updates - Obsolete Parts & BOP Parts #30438other
  • FE FE / FE2 Spring Updates #29689suspension & brakes
  • FF Allow Optional Coolant Bleed Line to Correct a Known Problem #29673engine
  • FF Clarification regarding Honda LC1 ECU implementation date #29684engine
Road America Runoffs 20202020-10-022:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s138.1Jeffrey Bartz2:43.994Hunter Phelps-Barron · fastest of 28 · top 5 within 0.6s2:45.816Alex Scaler · fastest of 24 · top 5 within 1.5s117.1Hunter Phelps-Barron2:42.209Kyle Greenhill · fastest of 77 · top 5 within 0.5s2:43.748Preston Pardus · fastest of 75 · top 5 within 1.0s121.3Kyle Greenhill
17 rule changes (FE: 5, FF: 4, FV: 6, SM: 2)7 tyres & wheels · 4 engine · 2 aero · 2 suspension & brakes · 2 weightshowhide
  • FE FE Gurney Flap Spec Update #29445aero
  • SM Radiator E&O Clarifications #29294engine
  • FF Clarification regarding Honda LC1 ECU implementation #29135engine
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • FV Support for Recommended Item - 4 bolt wheels in FV #29084tyres & wheels
  • FV Support for 4-bolt pattern wheels #28955 #29118tyres & wheels
  • FE FE Gurney flap wicker clarification #28885aero
  • FE FE spring rule update changed to November 1, 2020 #28814suspension & brakes
  • 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
  • FV Update rain tire designation #28444tyres & wheels
  • FE Request for FE / FE2 preparation rules update #27722weight
  • 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
  • FE FE / FE2 Update Rules #27624weight
  • FV Clarification on Wheel Bolt Pattern #27603tyres & wheels
Virginia International Raceway Runoffs 20192019-10-051:54.710Mark Snyder · fastest of 9 · top 5 within 1.3s1:55.648Mark Snyder · fastest of 9 · top 5 within 0.9s135.5James Libecco1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s136.2Derek Ketchie+24.826squal +4.853s121.5%qual 104.2%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+22.641squal +21.002s119.6%qual 118.3%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+20.811squal +19.842s118.0%qual 117.3%
18 rule changes (FE: 5, FF: 3, FV: 6, SM: 4)5 tyres & wheels · 3 engine · 2 induction · 2 suspension & brakes · 1 weight · 1 wording · 4 othershowhide
  • FE FE Wet Tire E&O #27365tyres & wheels
  • FV Allowed Modifications E&O #27398other
  • FV E&O Wheels #27230tyres & wheels
  • FE FE Tire Update #27029tyres & wheels
  • FE FE Anti-Roll Bar Clarification #26912suspension & brakes
  • FE FE / FE2 Updated Bubble Tail Rule #26913other
  • FV Exhaust termination rule E&O #26702other
  • FV E&O Dimensions #26674other
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262suspension & brakes
  • FE Request to Update Hoosier Rain Tire Part Number for the FE cars #26235tyres & wheels
  • SM Request to allow aftermarket fuel filters. #26370wording
  • FF Request for Oversize Honda Fit Pistons #25810engine
  • FF Heat Shield - Fit Intake #26102induction
  • FF Request catch cans/tanks clarification #26158engine
  • FV FV Intake Manifold Clarification #26008induction
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
Sonoma Raceway Runoffs 20182018-10-101:37.517Mark Snyder · fastest of 10 · top 5 within 1.4s1:38.504Lee Rackley · fastest of 10 · top 5 within 0.8s124.7Quinten Nelson1:41.612Jonathon Kotyk · fastest of 22 · top 5 within 1.7s1:42.049Jonathon Kotyk · fastest of 22 · top 5 within 1.3s115.7Denny Renfrow+3.545squal +4.095s103.6%qual 104.2%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+15.135squal +15.120s115.4%qual 115.5%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+16.774squal +16.838s117.0%qual 117.3%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:39.177Elliot Finlayson · fastest of 35 · top 5 within 1.3s1:39.726Elliot Finlayson · fastest of 35 · top 5 within 0.8s1:44.601Zach Holden · fastest of 36 · top 5 within 1.2s1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s+4.798squal +5.424s104.8%qual 105.5%1:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s+16.197squal +16.582s116.2%qual 116.7%1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s+19.374squal +19.129s119.4%qual 119.3%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:27.636Scott Rettich · fastest of 9 · top 5 within 1.7s1:30.563Hanna Zellers · fastest of 9 · top 5 within 2.2s1:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s-0.430squal +1.577s99.5%qual 101.8%1:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s+7.503squal +10.306s108.3%qual 111.8%1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s+10.201squal +12.878s111.3%qual 114.7%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-211:57.824Scott Rettich · fastest of 16 · top 5 within 1.0s1:59.040Scott Rettich · fastest of 16 · top 5 within 1.3s2:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s+4.343squal +4.665s103.6%qual 104.0%2:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s+22.102squal +23.343s118.6%qual 119.8%2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s+25.027squal +20.837s121.0%qual 117.7%

By track

TrackEvents Typical % of FE Best Latest 
Road America40 of 4 with FE
Virginia International Raceway3100.0%1 of 3 with FE100.0%Runoffs 2019100.0%Runoffs 2019
Indianapolis Motor Speedway2100.0%1 of 2 with FE100.0%Runoffs 2017100.0%Runoffs 2017
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 FE'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.