BoP Lab / Classes / FM
FM vs FE vs F5 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 · FE 85.2% of FM Mark Snyder, Virginia International Raceway Runoffs 2019 race · F5 86.6% of FM Wiley Mcmahan, Virginia International Raceway Runoffs 2019 race
| Event | FM | FE | F5 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FM | % of FM | Qual best | Race best | Trap | vs FM | % of FM | |||
| Virginia International Raceway Runoffs 20222022-09-24 | 1:57.689James Weida · fastest of 11 · top 5 within 3.9s+0.328s (+0.28%) | 2:21.862Sven de Vries · fastest of 10 · top 5 within 14.3s+24.290s (+20.66%) | 142.9Calvin Stewart+0.1 mph (+0.1%) | ||||||||||||
10 rule changes (FE: 4, F5: 6)4 engine · 2 induction · 1 tyres & wheels · 3 othershow
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| Indianapolis Motor Speedway Runoffs 20212021-09-25 | 1:42.619Ryan Mayfield · fastest of 22 · top 5 within 1.6s-0.517s (-0.50%) | 1:43.140Sven de Vries · fastest of 20 · top 5 within 1.7s+0.280s (+0.27%) | 144.4James Weida | ||||||||||||
7 rule changes (FE: 4, F5: 3)2 tyres & wheels · 1 engine · 1 suspension & brakes · 2 wording · 1 othershow
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| Road America Runoffs 20202020-10-02 | 2:20.954Calvin Stewart · fastest of 16 · top 5 within 1.8s | 2:21.391James Weida · fastest of 14 · top 5 within 1.5s | 143.2Aaron Ellis | ||||||||||||
11 rule changes (FE: 5, F5: 6)2 aero · 2 engine · 2 weight · 1 induction · 1 suspension & brakes · 3 othershow
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| 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 | 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 | -20.168squal -0.414s | 85.2%qual 99.6% | 1:57.361Wiley Mcmahan · fastest of 15 · top 5 within 3.8s | 1:57.572Wiley Mcmahan · fastest of 15 · top 5 within 4.0s | 142.8Eric McRee | -18.244squal +2.237s | 86.6%qual 101.9% | ||
6 rule changes (FE: 5, F5: 1)3 tyres & wheels · 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 | 1:37.517Mark Snyder · fastest of 10 · top 5 within 1.4s | 1:38.504Lee Rackley · fastest of 10 · top 5 within 0.8s | 124.7Quinten Nelson | +0.595squal -0.081s | 100.6%qual 99.9% | 1:41.807Jeff Jorgenson · fastest of 5 · top 5 within 6.6s | 1:42.491David Lapham · fastest of 5 · top 5 within 9.5s | 113.3David Lapham | +4.582squal +4.209s | 104.7%qual 104.3% | ||
| 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 | 1:39.177Elliot Finlayson · fastest of 35 · top 5 within 1.3s | 1:39.726Elliot Finlayson · fastest of 35 · top 5 within 0.8s | -1.420squal -2.054s | 98.6%qual 98.0% | 1:43.136Wiley Clinton McMahan · fastest of 38 · top 5 within 1.4s | 1:42.860Wiley Clinton McMahan · fastest of 37 · top 5 within 1.6s | +1.714squal +1.905s | 101.7%qual 101.9% | |||||
| 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 | 1:27.636Scott Rettich · fastest of 9 · top 5 within 1.7s | 1:30.563Hanna Zellers · fastest of 9 · top 5 within 2.2s | +2.641squal +1.593s | 103.0%qual 101.9% | 1:28.528Calvin Stewart · fastest of 14 · top 5 within 3.9s | 1:29.853Steven Thompson · fastest of 12 · top 5 within 4.5s | +1.931squal +2.485s | 102.2%qual 102.9% | |||||
| 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 | 1:57.824Scott Rettich · fastest of 16 · top 5 within 1.0s | 1:59.040Scott Rettich · fastest of 16 · top 5 within 1.3s | +1.011squal +0.020s | 100.9%qual 100.0% | 2:01.824W. Clint McMahan · fastest of 16 · top 5 within 3.0s | 2:03.298Matthew Strand · fastest of 15 · top 5 within 4.9s | +5.269squal +4.020s | 104.5%qual 103.4% | |||||
By track
| Track | Events | Typical % of FM | Best | Latest |
|---|---|---|---|---|
| Indianapolis Motor Speedway | 2 | 100.0%1 of 2 with FM | 100.0%Runoffs 2017 | 100.0%Runoffs 2017 |
| Virginia International Raceway | 2 | 100.0%1 of 2 with FM | 100.0%Runoffs 2019 | 100.0%Runoffs 2019 |
| 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 |
| Road America | 1 | 0 of 1 with FM | ||
| 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.