BoP Lab / Classes / FF
FF vs FC vs SM vs SMX pace at every track
Lap times across years say as much about the weather as the class. % of FF is each class's best lap as a share of FF'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: FF 100.0% of FF Rick Payne, Daytona International Speedway Runoffs 2015 race · FC 79.9% of FF Robert Allaer, Virginia International Raceway Runoffs 2019 race · SM 97.1% of FF Elivan Goulart, Virginia International Raceway Runoffs 2019 race · SMX 107.8% of FF Cam Ebben, Road America Runoffs 2025 qualifying
| Event | FF | FC | SM | SMX | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FF | % of FF | Qual best | Race best | Trap | vs FF | % of FF | Qual best | Race best | Trap | vs FF | % of FF | |||
| Road America Runoffs 20262026-09-28 | 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%) | 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%) | -12.297squal -12.361s | 91.4%qual 91.4% | 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%) | +19.039squal +19.126s | 113.3%qual 113.4% | 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%) | +12.728squal +13.425s | 108.9%qual 109.4% | ||
8 rule changes (FF: 2, FC: 2, SM: 2, SMX: 2)1 engine · 1 tyres & wheels · 1 weight · 2 wording · 3 othershow
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| Road America Runoffs 20252025-09-29 | 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%) | 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%) | -12.717squal -13.646s | 91.3%qual 90.6% | 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%) | +18.889squal +18.206s | 113.0%qual 112.6% | 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%) | +11.550squal +11.327s | 107.9%qual 107.8% | ||
15 rule changes (FF: 4, FC: 2, SM: 4, SMX: 5)5 tyres & wheels · 3 weight · 2 wording · 5 othershow
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| Road America Runoffs 20242024-10-01 | 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%) | 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%) | -10.523squal -10.926s | 92.6%qual 92.3% | 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%) | +19.429squal +18.554s | 113.7%qual 113.0% | 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 | +14.221squal +13.099s | 110.0%qual 109.2% | ||
12 rule changes (FF: 2, FC: 2, SM: 4, SMX: 4)3 engine · 2 suspension & brakes · 2 weight · 2 wording · 3 othershow
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| Virginia International Raceway Runoffs 20232023-09-23 | 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%) | 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%) | -9.414squal -8.968s | 92.2%qual 92.5% | 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%) | +15.646squal +15.737s | 113.0%qual 113.2% | 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 | +12.033squal +12.186s | 110.0%qual 110.2% | ||
| Virginia International Raceway Runoffs 20222022-09-24 | 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%) | 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%) | -10.499squal -9.320s | 92.4%qual 92.2% | 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%) | +0.749squal +15.449s | 100.5%qual 113.0% | |||||||
6 rule changes (FC: 5, SM: 1)3 engine · 1 suspension & brakes · 1 tyres & wheels · 1 wordingshow
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| Indianapolis Motor Speedway Runoffs 20212021-09-25 | 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 | 1:36.787Trent 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 | -18.696squal -7.572s | 83.8%qual 92.7% | 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 | +3.161squal +13.336s | 102.7%qual 112.8% | |||||||
| Road America Runoffs 20202020-10-02 | 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 | 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 | -10.660squal -10.272s | 92.6%qual 92.8% | 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 | +19.480squal +19.293s | 113.5%qual 113.5% | |||||||
10 rule changes (FF: 4, FC: 4, SM: 2)6 engine · 1 induction · 1 suspension & brakes · 1 tyres & wheels · 1 weightshow
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| Virginia International Raceway Runoffs 20192019-10-05 | 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 | 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 | -28.300squal -8.363s | 79.9%qual 93.0% | 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 | -4.015squal +14.989s | 97.1%qual 112.5% | |||||||
9 rule changes (FF: 3, FC: 2, SM: 4)3 engine · 3 weight · 1 induction · 1 tyres & wheels · 1 wordingshow
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| Sonoma Raceway Runoffs 20182018-10-10 | 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 | 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 | -7.996squal -9.041s | 92.2%qual 91.1% | 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 | +13.229squal +12.743s | 113.0%qual 112.5% | |||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Indianapolis Motor Speedway Runoffs 20172017-09-25 | 1:44.601Zach Holden · fastest of 36 · top 5 within 1.2s | 1:44.524Jonathon Kotyk · fastest of 36 · top 5 within 0.5s | 1:36.336Austin McCusker · fastest of 14 · top 5 within 2.3s | 1:36.890Tim Minor · fastest of 14 · top 5 within 3.8s | -7.634squal -8.265s | 92.7%qual 92.1% | 1:58.306Chris Haldeman · fastest of 86 · top 5 within 0.5s | 1:59.100Michael Gagliardo · fastest of 83 · top 5 within 0.6s | +14.576squal +13.705s | 113.9%qual 113.1% | ||||||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Mid-Ohio Sports Car Course Runoffs 20162016-09-19 | 1:29.213Neil Verhagen · fastest of 14 · top 5 within 2.1s | 1:30.133Neil Verhagen · fastest of 14 · top 5 within 1.4s | 1:21.962John LaRue · fastest of 7 · top 5 within 2.6s | 1:22.049Nigel Saurino · fastest of 7 · top 5 within 3.0s | -8.084squal -7.251s | 91.0%qual 91.9% | 1:40.514Justin Hille · fastest of 45 · top 5 within 0.3s | 1:40.764Michael Carter · fastest of 44 · top 5 within 0.3s | +10.631squal +11.301s | 111.8%qual 112.7% | ||||||||||
| No rule changes on record between these events | ||||||||||||||||||||
| Daytona International Speedway Runoffs 20152015-09-21 | 2:02.489Tim Kautz · fastest of 25 · top 5 within 1.1s | 2:03.383Rick Payne · fastest of 22 · top 5 within 0.8s | 1:54.477Yufeng Luo · fastest of 11 · top 5 within 2.5s | 1:55.135Yufeng Luo · fastest of 10 · top 5 within 2.1s | -8.248squal -8.012s | 93.3%qual 93.5% | 2:18.661Andrew Carbonell · fastest of 62 · top 5 within 0.6s | 2:24.067Todd Lamb · fastest of 59 · top 5 within 0.8s | +20.684squal +16.172s | 116.8%qual 113.2% | ||||||||||
By track
| Track | Events | Typical % of FF | 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 FF'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.