BoP Lab / Classes / FE
FE vs FB vs FM vs SRF3 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.
Closest to the field: FE 100.0% of FE Scott Rettich, Daytona International Speedway Runoffs 2015 race · FB 89.5% of FE Jeremy Hill, Mid-Ohio Sports Car Course Runoffs 2016 race · FM 97.1% of FE Jacob Loomis, Mid-Ohio Sports Car Course Runoffs 2016 race · SRF3 104.8% of FE Cliff White, Mid-Ohio Sports Car Course Runoffs 2016 race
| Event | FE | FB | FM | SRF3 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 20262026-09-28 | 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%) | |||||||||||||||||
| Road America Runoffs 20252025-09-29 | 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%) | |||||||||||||||||
| Road America Runoffs 20242024-10-01 | 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%) | |||||||||||||||||
15 rule changes (FE: 5, SRF3: 10)5 tyres & wheels · 3 suspension & brakes · 2 weight · 1 wording · 4 othershow
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| Virginia International Raceway Runoffs 20232023-09-23 | 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%) | |||||||||||||||||
7 rule changes (FE: 3, SRF3: 4)3 tyres & wheels · 2 suspension & brakes · 1 aero · 1 othershow
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| Virginia International Raceway Runoffs 20222022-09-24 | 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%) | |||||||||||||||||
7 rule changes (FE: 4, SRF3: 3)2 engine · 2 tyres & wheels · 1 suspension & brakes · 1 weight · 1 othershow
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| Indianapolis Motor Speedway Runoffs 20212021-09-25 | 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 | |||||||||||||||||
10 rule changes (FE: 4, SRF3: 6)2 engine · 2 suspension & brakes · 2 tyres & wheels · 1 weight · 1 wording · 2 othershow
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| Road America Runoffs 20202020-10-02 | 2:29.786TJ Acker · fastest of 59 · top 5 within 0.5s | 2:31.038Justin Hille · fastest of 55 · top 5 within 0.2s | 131.9Charles Russell Turner | |||||||||||||||||
12 rule changes (FE: 5, SRF3: 7)5 suspension & brakes · 3 weight · 2 aero · 1 tyres & wheels · 1 othershow
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| Virginia International Raceway Runoffs 20192019-10-05 | 1:54.710Mark Snyder · fastest of 9 · top 5 within 1.3s | 1:55.648Mark Snyder · fastest of 9 · top 5 within 0.9s | 135.5James Libecco | 1:54.469Pete Frost · only car | 1:57.688Pete Frost · only car | 145.9Pete Frost | +2.040squal -0.241s | 101.8%qual 99.8% | 1:55.124Bryce Cornet · fastest of 8 · top 5 within 2.3s | 2:15.816Bryce Cornet · fastest of 8 · top 5 within 4.9s | 135.7Bryce Cornet | +20.168squal +0.414s | 117.4%qual 100.4% | 2:04.624Brian Schofield · fastest of 54 · top 5 within 0.6s | 2:04.755Bobby Sak · fastest of 53 · top 5 within 0.3s | 132.4Bobby Sak | +9.107squal +9.914s | 107.9%qual 108.6% | ||
8 rule changes (FE: 5, SRF3: 3)3 tyres & wheels · 2 suspension & brakes · 3 othershow
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| Sonoma Raceway Runoffs 20182018-10-10 | 1:37.517Mark Snyder · fastest of 10 · top 5 within 1.4s | 1:38.504Lee Rackley · fastest of 10 · top 5 within 0.8s | 124.7Quinten Nelson | 1:28.612J R Osborne · fastest of 7 · top 5 within 3.3s | 1:31.189J R Osborne · fastest of 7 · top 5 within 3.7s | 140.5J R Osborne | -7.315squal -8.905s | 92.6%qual 90.9% | 1:37.598Bryce Cornet · fastest of 13 · top 5 within 0.9s | 1:37.909Bryce Cornet · fastest of 12 · top 5 within 1.3s | 124.1Melvin David Kemper Jr | -0.595squal +0.081s | 99.4%qual 100.1% | 1:46.117Robeson Clay Russell · fastest of 36 · top 5 within 0.5s | 1:47.053TJ Acker · fastest of 35 · top 5 within 0.2s | 110.2Steve Fogg | +8.549squal +8.600s | 108.7%qual 108.8% | ||
| No rule changes on record between these events | ||||||||||||||||||||
| Indianapolis Motor Speedway Runoffs 20172017-09-25 | 1:39.177Elliot Finlayson · fastest of 35 · top 5 within 1.3s | 1:39.726Elliot Finlayson · fastest of 35 · top 5 within 0.8s | 1:33.746Gary Hickman · fastest of 18 · top 5 within 3.3s | 1:33.702Alex Mayer · fastest of 17 · top 5 within 3.0s | -6.024squal -5.431s | 94.0%qual 94.5% | 1:41.231Jarret Voorhies · fastest of 16 · top 5 within 1.7s | 1:41.146Jarret Voorhies · fastest of 16 · top 5 within 1.2s | +1.420squal +2.054s | 101.4%qual 102.1% | 1:49.824John Black · fastest of 101 · top 5 within 0.5s | 1:49.782Tray Ayres · fastest of 94 · top 5 within 0.4s | +10.056squal +10.647s | 110.1%qual 110.7% | ||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Mid-Ohio Sports Car Course Runoffs 20162016-09-19 | 1:27.636Scott Rettich · fastest of 9 · top 5 within 1.7s | 1:30.563Hanna Zellers · fastest of 9 · top 5 within 2.2s | 1:19.886Alex Mayer · fastest of 10 · top 5 within 1.5s | 1:21.015Jeremy Hill · fastest of 10 · top 5 within 1.2s | -9.548squal -7.750s | 89.5%qual 91.2% | 1:26.043Jacob Loomis · fastest of 8 · top 5 within 3.1s | 1:27.922Jacob Loomis · fastest of 8 · top 5 within 2.7s | -2.641squal -1.593s | 97.1%qual 98.2% | 1:34.363John Black · fastest of 41 · top 5 within 0.5s | 1:34.947Cliff White · fastest of 39 · top 5 within 0.3s | +4.384squal +6.727s | 104.8%qual 107.7% | ||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Daytona International Speedway Runoffs 20152015-09-21 | 1:57.824Scott Rettich · fastest of 16 · top 5 within 1.0s | 1:59.040Scott Rettich · fastest of 16 · top 5 within 1.3s | 1:50.711J R Osborne · fastest of 20 · top 5 within 1.1s | 1:51.616J R Osborne · fastest of 19 · top 5 within 2.1s | -7.424squal -7.113s | 93.8%qual 94.0% | 1:57.804Joseph Burton-Harris · fastest of 10 · top 5 within 2.3s | 1:58.029Joseph Burton-Harris · fastest of 10 · top 5 within 1.7s | -1.011squal -0.020s | 99.2%qual 100.0% | 2:08.557Kerry Jacobsen · fastest of 29 · top 5 within 1.1s | 2:10.215Chad Galloway · fastest of 29 · top 5 within 0.3s | +11.175squal +10.733s | 109.4%qual 109.1% | ||||||
By track
| Track | Events | Typical % of FE | Best | Latest |
|---|---|---|---|---|
| Road America | 4 | 0 of 4 with FE | ||
| Virginia International Raceway | 3 | 100.0%1 of 3 with FE | 100.0%Runoffs 2019 | 100.0%Runoffs 2019 |
| Indianapolis Motor Speedway | 2 | 100.0%1 of 2 with FE | 100.0%Runoffs 2017 | 100.0%Runoffs 2017 |
| Daytona International Speedway | 1 | 100.0% | 100.0%Runoffs 2015 | 100.0%Runoffs 2015 |
| Mid-Ohio Sports Car Course | 1 | 100.0% | 100.0%Runoffs 2016 | 100.0%Runoffs 2016 |
| Sonoma Raceway | 1 | 100.0% | 100.0%Runoffs 2018 | 100.0%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.