BoP Lab / Classes / FV
FV vs AS vs FC vs F5 pace at every track
Lap times across years say as much about the weather as the class. % of FV is each class's best lap as a share of FV'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: FV 100.0% of FV Andrew Whitston, Daytona International Speedway Runoffs 2015 race · AS 86.2% of FV Tom Sloe, Daytona International Speedway Runoffs 2015 qualifying · FC 78.5% of FV Brandon Dixon, Road America Runoffs 2026 qualifying · F5 85.0% of FV Wiley Mcmahan, Virginia International Raceway Runoffs 2019 race
| Event | FV | AS | FC | F5 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FV | % of FV | Qual best | Race best | Trap | vs FV | % of FV | Qual best | Race best | Trap | vs FV | % of FV | |||
| Road America Runoffs 20262026-09-28 | 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%) | 2:26.911Andrew 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%) | -16.801squal -19.625s | 89.8%qual 88.2% | 2:10.686Brandon Dixon · fastest of 10 · top 5 within 4.0s-0.573s (-0.44%) | 2:11.389Brandon Dixon · fastest of 10 · top 5 within 2.7s-1.435s (-1.08%) | 143.3Dean Kiriluk-1.8 mph (-1.2%) | -33.883squal -35.850s | 79.5%qual 78.5% | |||||||
15 rule changes (AS: 13, FC: 2)6 weight · 3 engine · 2 tyres & wheels · 1 induction · 1 removed · 2 othershow
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| Road America Runoffs 20252025-09-29 | 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%) | 2:26.792Andrew 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%) | -17.504squal -17.309s | 89.5%qual 89.5% | 2:11.259Brandon Dixon · fastest of 10 · top 5 within 2.7s-0.367s (-0.28%) | 2:12.824Brandon Dixon · fastest of 9 · top 5 within 2.3s+1.290s (+0.98%) | 145.1Brandon Dixon+0.9 mph (+0.6%) | -33.912squal -32.842s | 79.7%qual 80.0% | |||||||
13 rule changes (AS: 11, FC: 2)5 engine · 4 weight · 2 induction · 1 tyres & wheels · 1 othershow
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| Road America Runoffs 20242024-10-01 | 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%) | 2:26.578Gregory 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%) | -18.405squal -16.065s | 88.8%qual 90.1% | 2:11.626Timothy Minor · fastest of 10 · top 5 within 1.3s-1.018s (-0.77%) | 2:11.534Michael Varacins · fastest of 9 · top 5 within 1.8s-2.074s (-1.55%) | 144.2Michael Varacins+1.8 mph (+1.2%) | -33.300squal -31.017s | 79.8%qual 80.9% | |||||||
15 rule changes (FV: 2, AS: 11, FC: 2)6 cars added · 2 tyres & wheels · 2 weight · 1 engine · 1 suspension & brakes · 3 othershow
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| Virginia International Raceway Runoffs 20232023-09-23 | 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%) | 2:03.082Daniel 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%) | -12.491squal -12.557s | 90.9%qual 90.7% | 1:50.281Nolan Allaer · fastest of 11 · top 5 within 2.3s+0.386s (+0.35%) | 1:51.169Nolan Allaer · fastest of 11 · top 5 within 2.5s-16.690s (-13.05%) | 143.5Robert Allaer+2.3 mph (+1.7%) | -25.442squal -25.358s | 81.4%qual 81.3% | |||||||
7 rule changes (AS: 4, FC: 3)3 engine · 2 tyres & wheels · 1 suspension & brakes · 1 weightshow
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| Virginia International Raceway Runoffs 20222022-09-24 | 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%) | 2:02.162Kurt 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%) | -13.515squal -12.954s | 90.2%qual 90.4% | 1:49.895Nolan Allaer · fastest of 12 · top 5 within 1.5s-1.305s (-1.17%) | 2:07.859Nolan Allaer · fastest of 13 · top 5 within 3.8s+15.685s (+13.98%) | 141.2Tim Minor-0.6 mph (-0.4%) | -10.234squal -25.221s | 92.6%qual 81.3% | 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%) | +3.769squal -17.427s | 102.7%qual 87.1% | ||
24 rule changes (FV: 4, AS: 9, FC: 5, F5: 6)6 engine · 6 weight · 2 induction · 1 suspension & brakes · 1 tyres & wheels · 3 wording · 5 othershow
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| Indianapolis Motor Speedway Runoffs 20212021-09-25 | 1:57.479Andrew 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 Edwards | 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 | -6.628squal -7.052s | 94.3%qual 94.0% | 1:36.787Trent Walko · fastest of 31 · top 5 within 1.7s+0.451s (+0.47%) | 1:36.980Simon Sikes · fastest of 31 · top 5 within 2.0s+0.090s (+0.09%) | 141.6Tim Minor | -20.254squal -20.692s | 82.7%qual 82.4% | 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 | -14.094squal -14.860s | 88.0%qual 87.4% | ||
18 rule changes (AS: 14, FC: 1, F5: 3)7 weight · 4 engine · 3 cars added · 1 tyres & wheels · 3 wordingshow
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| Road America Runoffs 20202020-10-02 | 2:43.994Hunter Phelps-Barron · fastest of 28 · top 5 within 0.6s | 2:45.816Alex Scaler · fastest of 24 · top 5 within 1.5s | 117.1Hunter Phelps-Barron | 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 | -18.148squal -16.949s | 89.1%qual 89.7% | 2:12.644Robert Allaer · fastest of 13 · top 5 within 2.1s | 2:13.608Robert Allaer · fastest of 11 · top 5 within 1.2s | 142.4Robert Allaer | -32.208squal -31.350s | 80.6%qual 80.9% | 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 | -24.425squal -23.040s | 85.3%qual 86.0% | ||
32 rule changes (FV: 6, AS: 16, FC: 4, F5: 6)8 tyres & wheels · 7 engine · 4 induction · 3 weight · 2 cars added · 2 suspension & brakes · 1 aero · 5 othershow
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| Virginia International Raceway Runoffs 20192019-10-05 | 2:15.712Andrew Whitston · fastest of 26 · top 5 within 1.5s | 2:18.289Zachary Whitston · fastest of 19 · top 5 within 0.4s | 114.8Roger Siebenaler | 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 | -14.389squal -12.774s | 89.6%qual 90.6% | 1:51.200Robert Allaer · fastest of 10 · top 5 within 3.1s | 1:52.174Robert Allaer · fastest of 9 · top 5 within 2.7s | 141.8Robert Allaer | -26.115squal -24.512s | 81.1%qual 81.9% | 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 | -20.717squal -18.351s | 85.0%qual 86.5% | ||
13 rule changes (FV: 6, AS: 4, FC: 2, F5: 1)4 weight · 2 suspension & brakes · 1 cars added · 1 induction · 1 tyres & wheels · 4 othershow
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| Sonoma Raceway Runoffs 20182018-10-10 | 1:52.637Skip Streets · fastest of 29 · top 5 within 1.6s | 1:53.639Alex Scaler · fastest of 28 · top 5 within 0.4s | 106.3Skip Streets | 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 | -3.294squal -4.855s | 97.1%qual 95.7% | 1:32.571Timothy de Silva · fastest of 16 · top 5 within 1.8s | 1:34.053Mitch Egner · fastest of 12 · top 5 within 1.6s | 133.1Robert Armington | -19.586squal -20.066s | 82.8%qual 82.2% | 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 | -11.148squal -10.830s | 90.2%qual 90.4% | ||
| No rule changes on record between these events | ||||||||||||||||||||
| Indianapolis Motor Speedway Runoffs 20172017-09-25 | 1:55.759Michael Varacins · fastest of 39 · top 5 within 1.0s | 1:55.923Michael Varacins · fastest of 32 · top 5 within 1.3s | 1:45.220James Jost · fastest of 29 · top 5 within 6.7s | 1:51.507Bryan Long · fastest of 28 · top 5 within 0.9s | -4.416squal -10.539s | 96.2%qual 90.9% | 1:36.336Austin McCusker · fastest of 14 · top 5 within 2.3s | 1:36.890Tim Minor · fastest of 14 · top 5 within 3.8s | -19.033squal -19.423s | 83.6%qual 83.2% | 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 | -13.063squal -12.623s | 88.7%qual 89.1% | ||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Mid-Ohio Sports Car Course Runoffs 20162016-09-19 | 1:37.942Alex Scaler · fastest of 41 · top 5 within 0.3s | 1:38.066Flinn Lazier · fastest of 38 · top 5 within 0.7s | 1:30.651Tom Sloe · fastest of 22 · top 5 within 3.6s | 1:33.424Edward Hosni · fastest of 20 · top 5 within 1.0s | -4.642squal -7.291s | 95.3%qual 92.6% | 1:21.962John LaRue · fastest of 7 · top 5 within 2.6s | 1:22.049Nigel Saurino · fastest of 7 · top 5 within 3.0s | -16.017squal -15.980s | 83.7%qual 83.7% | 1:28.528Calvin Stewart · fastest of 14 · top 5 within 3.9s | 1:29.853Steven Thompson · fastest of 12 · top 5 within 4.5s | -8.213squal -9.414s | 91.6%qual 90.4% | ||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Daytona International Speedway Runoffs 20152015-09-21 | 2:21.167Roger Siebenaler · fastest of 31 · top 5 within 0.8s | 2:21.142Andrew Whitston · fastest of 30 · top 5 within 1.1s | 2:01.746Tom Sloe · fastest of 22 · top 5 within 2.6s | 2:02.922Andy McDermid · fastest of 19 · top 5 within 2.2s | -18.220squal -19.421s | 87.1%qual 86.2% | 1:54.477Yufeng Luo · fastest of 11 · top 5 within 2.5s | 1:55.135Yufeng Luo · fastest of 10 · top 5 within 2.1s | -26.007squal -26.690s | 81.6%qual 81.1% | 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 | -17.844squal -19.343s | 87.4%qual 86.3% | ||||||
By track
| Track | Events | Typical % of FV | Best | Latest |
|---|---|---|---|---|
| Road America | 4 | 100.0% | 100.0%Runoffs 2020 | 100.0%Runoffs 2026 |
| Virginia International Raceway | 3 | 100.0% | 100.0%Runoffs 2019 | 100.0%Runoffs 2023 |
| Indianapolis Motor Speedway | 2 | 100.0% | 100.0%Runoffs 2017 | 100.0%Runoffs 2021 |
| 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 FV'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.