BoP Lab / Classes / FC
FC vs GTL vs F5 pace at every track
Lap times across years say as much about the weather as the class. % of FC is each class's best lap as a share of FC'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: FC 100.0% of FC Yufeng Luo, Daytona International Speedway Runoffs 2015 race · GTL 110.4% of FC Michael Lewis, Virginia International Raceway Runoffs 2022 race · F5 104.8% of FC Wiley Mcmahan, Virginia International Raceway Runoffs 2019 race
| Event | FC | GTL | F5 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs FC | % of FC | Qual best | Race best | Trap | vs FC | % of FC | |||
| Road America Runoffs 20262026-09-28 | 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%) | ||||||||||||
| Road America Runoffs 20252025-09-29 | 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%) | ||||||||||||
| Road America Runoffs 20242024-10-01 | 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%) | 2:30.858Peter Shadowen · fastest of 14 · top 5 within 4.4s-1.085s (-0.71%) | 2:30.844Chris Bovis · fastest of 13 · top 5 within 3.7s-0.757s (-0.50%) | 133.3Peter Shadowen+1.8 mph (+1.4%) | +19.310squal +19.232s | 114.7%qual 114.6% | |||||||
18 rule changes (FC: 2, GTL: 16)5 cars added · 5 engine · 5 weight · 2 induction · 1 aeroshow
| |||||||||||||||
| Virginia International Raceway Runoffs 20232023-09-23 | 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%) | 2:09.564Peter Shadowen · fastest of 11 · top 5 within 4.9s+1.775s (+1.39%) | 2:11.277Graham Fuller · fastest of 10 · top 5 within 2.4s-9.903s (-7.01%) | 142.7Peter Shadowen+6.7 mph (+4.9%) | +20.108squal +19.283s | 118.1%qual 117.5% | |||||||
10 rule changes (FC: 3, GTL: 7)4 engine · 3 weight · 1 cars added · 1 induction · 1 tyres & wheelsshow
| |||||||||||||||
| Virginia International Raceway Runoffs 20222022-09-24 | 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%) | 2:07.789Peter Shadowen · fastest of 14 · top 5 within 2.2s+0.792s (+0.62%) | 2:21.180Michael Lewis · fastest of 13 · top 5 within 2.1s+13.343s (+10.44%) | 136.0Peter Shadowen+4.9 mph (+3.7%) | +13.321squal +17.894s | 110.4%qual 116.3% | 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%) | +14.003squal +7.794s | 111.0%qual 107.1% | ||
14 rule changes (FC: 5, GTL: 3, F5: 6)5 engine · 2 cars added · 2 induction · 1 suspension & brakes · 1 tyres & wheels · 1 wording · 2 othershow
| |||||||||||||||
| Indianapolis Motor Speedway Runoffs 20212021-09-25 | 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 | 1:51.819Christopher Bovis · fastest of 22 · top 5 within 1.8s+1.488s (+1.35%) | 1:51.952Scott Twomey · fastest of 19 · top 5 within 1.7s-0.116s (-0.10%) | 129.5Brian Linn | +14.972squal +15.032s | 115.4%qual 115.5% | 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 | +6.160squal +5.832s | 106.4%qual 106.0% | ||
12 rule changes (FC: 1, GTL: 8, F5: 3)3 weight · 2 engine · 2 tyres & wheels · 1 cars added · 1 induction · 2 wording · 1 othershow
| |||||||||||||||
| Road America Runoffs 20202020-10-02 | 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 | 2:31.943Chris Bovis · fastest of 14 · top 5 within 6.3s | 2:31.601Peter Shadowen · fastest of 14 · top 5 within 7.2s | 131.4Peter Shadowen | +17.993squal +19.299s | 113.5%qual 114.5% | 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 | +7.783squal +8.310s | 105.8%qual 106.3% | ||
27 rule changes (FC: 4, GTL: 17, F5: 6)7 aero · 6 induction · 4 engine · 3 cars added · 3 weight · 4 othershow
| |||||||||||||||
| Virginia International Raceway Runoffs 20192019-10-05 | 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 | 2:06.997Peter Shadowen · fastest of 19 · top 5 within 4.0s | 2:07.837Bill Ball · fastest of 18 · top 5 within 4.2s | 131.1Peter Shadowen | +15.663squal +15.797s | 114.0%qual 114.2% | 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 | +5.398squal +6.161s | 104.8%qual 105.5% | ||
16 rule changes (FC: 2, GTL: 13, F5: 1)7 weight · 4 cars added · 2 engine · 1 induction · 1 suspension & brakes · 1 tyres & wheelsshow
| |||||||||||||||
| Sonoma Raceway Runoffs 20182018-10-10 | 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 | 1:47.885Troy Ermish · fastest of 20 · top 5 within 4.5s | 1:49.458Troy Ermish · fastest of 19 · top 5 within 3.6s | 109.3Charles Leonard | +15.405squal +15.314s | 116.4%qual 116.5% | 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 | +8.438squal +9.236s | 109.0%qual 110.0% | ||
| No rule changes on record between these events | |||||||||||||||
| Indianapolis Motor Speedway Runoffs 20172017-09-25 | 1:36.336Austin McCusker · fastest of 14 · top 5 within 2.3s | 1:36.890Tim Minor · fastest of 14 · top 5 within 3.8s | 1:50.331Christopher Bovis · fastest of 26 · top 5 within 1.5s | 1:52.068Christopher Bovis · fastest of 20 · top 5 within 1.0s | +15.178squal +13.995s | 115.7%qual 114.5% | 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 | +5.970squal +6.800s | 106.2%qual 107.1% | |||||
| No rule changes on record between these events | |||||||||||||||
| Mid-Ohio Sports Car Course Runoffs 20162016-09-19 | 1:21.962John LaRue · fastest of 7 · top 5 within 2.6s | 1:22.049Nigel Saurino · fastest of 7 · top 5 within 3.0s | 1:35.377Wilson Wright · fastest of 28 · top 5 within 1.2s | 1:35.912Kyle Disque · fastest of 28 · top 5 within 1.1s | +13.863squal +13.415s | 116.9%qual 116.4% | 1:28.528Calvin Stewart · fastest of 14 · top 5 within 3.9s | 1:29.853Steven Thompson · fastest of 12 · top 5 within 4.5s | +7.804squal +6.566s | 109.5%qual 108.0% | |||||
| No rule changes on record between these events | |||||||||||||||
| Daytona International Speedway Runoffs 20152015-09-21 | 1:54.477Yufeng Luo · fastest of 11 · top 5 within 2.5s | 1:55.135Yufeng Luo · fastest of 10 · top 5 within 2.1s | 2:11.387Jim Dentici · fastest of 10 · top 5 within 2.2s | 2:13.564Jim Dentici · fastest of 9 · top 5 within 2.0s | +18.429squal +16.910s | 116.0%qual 114.8% | 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 | +8.163squal +7.347s | 107.1%qual 106.4% | |||||
By track
| Track | Events | Typical % of FC | 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 FC'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.