BoP Lab / Classes / FV
FV vs FF vs SM vs FC 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 · FF 85.9% of FV David Ybarra, Road America Runoffs 2026 qualifying · SM 97.4% of FV Brett Kowalski, Road America Runoffs 2026 qualifying · FC 78.5% of FV Brandon Dixon, Road America Runoffs 2026 qualifying
| Event | FV | FF | SM | FC | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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%) | 2:23.047David 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%) | -21.586squal -23.489s | 86.9%qual 85.9% | 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%) | -2.547squal -4.363s | 98.5%qual 97.4% | 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% | ||
6 rule changes (FF: 2, SM: 2, FC: 2)1 engine · 1 tyres & wheels · 1 weight · 1 wording · 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%) | 2:24.905Jonathan 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%) | -21.195squal -19.196s | 87.3%qual 88.3% | 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%) | -2.306squal -0.990s | 98.6%qual 99.4% | 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% | ||
10 rule changes (FF: 4, SM: 4, FC: 2)4 tyres & wheels · 3 weight · 1 wording · 2 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%) | 2:22.552Calvin 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%) | -22.777squal -20.091s | 86.2%qual 87.6% | 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%) | -3.348squal -1.537s | 98.0%qual 99.1% | 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% | ||
10 rule changes (FV: 2, FF: 2, SM: 4, FC: 2)2 engine · 2 suspension & brakes · 2 weight · 1 tyres & wheels · 1 wording · 2 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%) | 1:59.249Nolan 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%) | -16.028squal -16.390s | 88.3%qual 87.9% | 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%) | -0.382squal -0.653s | 99.7%qual 99.5% | 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% | ||
| 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%) | 1:59.215Jonathan 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%) | +0.265squal -15.901s | 100.2%qual 88.2% | 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%) | +1.014squal -0.452s | 100.7%qual 99.7% | 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% | ||
10 rule changes (FV: 4, SM: 1, FC: 5)4 weight · 3 engine · 1 suspension & brakes · 1 tyres & wheels · 1 wordingshow
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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 | 1:44.359Jonathan 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 Sheppard | -1.558squal -13.120s | 98.7%qual 88.8% | 1:57.695Brian 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 | +1.603squal +0.216s | 101.4%qual 100.2% | 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% | ||
| 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 | 2:22.916Simon Sikes · fastest of 14 · top 5 within 1.6s | 2:24.268Jeffrey Bartz · fastest of 14 · top 5 within 0.4s | 138.1Jeffrey Bartz | -21.548squal -21.078s | 87.0%qual 87.1% | 2:42.209Kyle Greenhill · fastest of 77 · top 5 within 0.5s | 2:43.748Preston Pardus · fastest of 75 · top 5 within 1.0s | 121.3Kyle Greenhill | -2.068squal -1.785s | 98.8%qual 98.9% | 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% | ||
16 rule changes (FV: 6, FF: 4, SM: 2, FC: 4)7 tyres & wheels · 6 engine · 1 induction · 1 suspension & brakes · 1 weightshow
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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 | 1:59.563Tyler O'Connor · fastest of 14 · top 5 within 1.4s | 2:20.474Jonathan Kotyk · fastest of 14 · top 5 within 6.3s | 136.2Derek Ketchie | +2.185squal -16.149s | 101.6%qual 88.1% | 2:14.552Todd Buras · fastest of 60 · top 5 within 0.2s | 2:16.459Elivan Goulart · fastest of 56 · top 5 within 0.4s | 119.8Jim Drago | -1.830squal -1.160s | 98.7%qual 99.1% | 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% | ||
15 rule changes (FV: 6, FF: 3, SM: 4, FC: 2)3 engine · 3 weight · 2 induction · 2 tyres & wheels · 1 suspension & brakes · 1 wording · 3 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 | 1:41.612Jonathon Kotyk · fastest of 22 · top 5 within 1.7s | 1:42.049Jonathon Kotyk · fastest of 22 · top 5 within 1.3s | 115.7Denny Renfrow | -11.590squal -11.025s | 89.8%qual 90.2% | 1:54.355Ken Sutherland · fastest of 48 · top 5 within 0.7s | 1:55.278Michael Carter · fastest of 48 · top 5 within 0.3s | 102.2Danny Steyn | +1.639squal +1.718s | 101.4%qual 101.5% | 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% | ||
| 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 | 1:44.601Zach Holden · fastest of 36 · top 5 within 1.2s | 1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s | -11.399squal -11.158s | 90.2%qual 90.4% | 1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s | 1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s | +3.177squal +2.547s | 102.7%qual 102.2% | 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% | ||||||
| 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 | 1:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s | 1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s | -7.933squal -8.729s | 91.9%qual 91.1% | 1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s | 1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s | +2.698squal +2.572s | 102.8%qual 102.6% | 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% | ||||||
| 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 | 2:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s | 2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s | -17.759squal -18.678s | 87.4%qual 86.8% | 2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s | 2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s | +2.925squal -2.506s | 102.1%qual 98.2% | 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% | ||||||
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.