BoP Lab / Classes / FM
FM vs AS vs SMX pace at every track
Lap times across years say as much about the weather as the class. % of FM is each class's best lap as a share of FM'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: FM 100.0% of FM Joseph Burton-Harris, Daytona International Speedway Runoffs 2015 race · AS 91.2% of FM James Jost, Virginia International Raceway Runoffs 2019 race
| Event | FM | AS | SMX | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FM | % of FM | Qual best | Race best | Trap | vs FM | % of FM | |||
| Road America Runoffs 20262026-09-28 | 2:26.911Andrew McDermid · fastest of 8 · top 5 within 3.4s+0.119s (+0.08%) | 2:28.471Andrew McDermid · fastest of 8 · top 5 within 2.4s-0.761s (-0.51%) | 151.0Andrew McDermid-0.6 mph (-0.4%) | 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%) | |||||||||
15 rule changes (AS: 13, SMX: 2)5 weight · 3 engine · 2 tyres & wheels · 1 induction · 1 removed · 1 wording · 2 othershow
| |||||||||||||||
| Road America Runoffs 20252025-09-29 | 2:26.792Andrew McDermid · fastest of 11 · top 5 within 3.9s+0.214s (+0.15%) | 2:29.232Gregory Eaton · fastest of 10 · top 5 within 4.0s+2.803s (+1.91%) | 151.5Andrew McDermid+1.9 mph (+1.3%) | 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%) | |||||||||
16 rule changes (AS: 11, SMX: 5)5 engine · 3 weight · 2 induction · 1 tyres & wheels · 1 wording · 4 othershow
| |||||||||||||||
| Road America Runoffs 20242024-10-01 | 2:26.578Gregory Eaton · fastest of 18 · top 5 within 2.6s-0.467s (-0.32%) | 2:26.429Gregory Eaton · fastest of 18 · top 5 within 2.5s-1.239s (-0.84%) | 149.6Gregory Eaton+0.4 mph (+0.3%) | 2:35.651Ethan Lampe · fastest of 23 · top 5 within 0.7s | 2:36.278Ethan Jacobs · fastest of 22 · top 5 within 0.7s | 129.5Michael Borden | |||||||||
15 rule changes (AS: 11, SMX: 4)6 cars added · 2 engine · 1 suspension & brakes · 1 tyres & wheels · 1 wording · 4 othershow
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| Virginia International Raceway Runoffs 20232023-09-23 | 2:03.082Daniel Richardson · fastest of 11 · top 5 within 2.2s+0.920s (+0.75%) | 2:04.120Gregory Eaton · fastest of 9 · top 5 within 3.0s-0.458s (-0.37%) | 154.6James Jost+3.7 mph (+2.5%) | 2:11.435Nathan Nicholson · fastest of 18 · top 5 within 0.6s | 2:12.616Noah Harmon · fastest of 16 · top 5 within 0.1s | 127.8Noah Harmon | |||||||||
4 rule changes (AS: 4)2 engine · 1 suspension & brakes · 1 tyres & wheelsshow | |||||||||||||||
| Virginia International Raceway Runoffs 20222022-09-24 | 2:02.162Kurt Rezzetano · fastest of 13 · top 5 within 2.3s-0.776s (-0.63%) | 2:04.578Gregory Eaton · fastest of 11 · top 5 within 2.9s+0.678s (+0.55%) | 150.9James Jost-3.0 mph (-2.0%) | ||||||||||||
9 rule changes (AS: 9)2 weight · 1 engine · 1 suspension & brakes · 2 wording · 3 othershow
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| Indianapolis Motor Speedway Runoffs 20212021-09-25 | 1:50.427Drew Cattell · fastest of 31 · top 5 within 1.9s+5.207s (+4.95%) | 1:50.606Gregory Eaton · fastest of 28 · top 5 within 1.7s-0.901s (-0.81%) | 153.8James Jost | ||||||||||||
14 rule changes (AS: 14)6 weight · 3 cars added · 3 engine · 2 wordingshow
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| Road America Runoffs 20202020-10-02 | 2:27.045Gregory Eaton · fastest of 18 · top 5 within 0.6s | 2:27.668Gregory Eaton · fastest of 15 · top 5 within 1.5s | 149.2Gregory Eaton | ||||||||||||
16 rule changes (AS: 16)3 engine · 2 cars added · 2 induction · 2 suspension & brakes · 2 tyres & wheels · 2 weight · 1 aero · 2 othershow
| |||||||||||||||
| Virginia International Raceway Runoffs 20192019-10-05 | 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 | 2:02.938Gregory Eaton · fastest of 17 · top 5 within 0.8s | 2:03.900James Jost · fastest of 16 · top 5 within 2.1s | 153.9James Jost | -11.916squal +7.814s | 91.2%qual 106.8% | |||||||
4 rule changes (AS: 4)1 cars added · 1 suspension & brakes · 1 weight · 1 othershow | |||||||||||||||
| Sonoma Raceway Runoffs 20182018-10-10 | 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 | 1:47.782Andrew McDermid · fastest of 12 · top 5 within 1.9s | 1:50.345John Heinricy · fastest of 10 · top 5 within 2.3s | 105.0Kevin Fandozzi | +12.436squal +10.184s | 112.7%qual 110.4% | |||||||
| No rule changes on record between these events | |||||||||||||||
| Indianapolis Motor Speedway Runoffs 20172017-09-25 | 1:41.231Jarret Voorhies · fastest of 16 · top 5 within 1.7s | 1:41.146Jarret Voorhies · fastest of 16 · top 5 within 1.2s | 1:45.220James Jost · fastest of 29 · top 5 within 6.7s | 1:51.507Bryan Long · fastest of 28 · top 5 within 0.9s | +10.361squal +3.989s | 110.2%qual 103.9% | |||||||||
| No rule changes on record between these events | |||||||||||||||
| Mid-Ohio Sports Car Course Runoffs 20162016-09-19 | 1:26.043Jacob Loomis · fastest of 8 · top 5 within 3.1s | 1:27.922Jacob Loomis · fastest of 8 · top 5 within 2.7s | 1:30.651Tom Sloe · fastest of 22 · top 5 within 3.6s | 1:33.424Edward Hosni · fastest of 20 · top 5 within 1.0s | +5.502squal +4.608s | 106.3%qual 105.4% | |||||||||
| No rule changes on record between these events | |||||||||||||||
| Daytona International Speedway Runoffs 20152015-09-21 | 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 | 2:01.746Tom Sloe · fastest of 22 · top 5 within 2.6s | 2:02.922Andy McDermid · fastest of 19 · top 5 within 2.2s | +4.893squal +3.942s | 104.1%qual 103.3% | |||||||||
By track
| Track | Events | Typical % of FM | Best | Latest |
|---|---|---|---|---|
| Road America | 4 | 0 of 4 with FM | ||
| Virginia International Raceway | 3 | 100.0%1 of 3 with FM | 100.0%Runoffs 2019 | 100.0%Runoffs 2019 |
| Indianapolis Motor Speedway | 2 | 100.0%1 of 2 with FM | 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 FM'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.