BoP Lab / Classes / FV
FV vs P 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 · P 73.2% of FV Bart Wolf, Road America Runoffs 2025 race
| Event | FV | P | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | 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%) | 2:02.281Perry Richardson · fastest of 10 · top 5 within 1.3s+1.101s (+0.91%) | 2:03.283Lawrence Loshak · fastest of 10 · top 5 within 0.8s+1.161s (+0.95%) | 165.6Jason Miller+0.7 mph (+0.4%) | -41.989squal -44.255s | 74.6%qual 73.4% | ||
1 rule change (P: 1)1 suspension & brakesshow
| ||||||||||
| 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%) | 2:01.180Lee Alexander · fastest of 14 · top 5 within 1.5s | 2:02.122Bart Wolf · fastest of 13 · top 5 within 2.1s | 165.0Jason Miller | -44.614squal -42.921s | 73.2%qual 73.8% | ||
7 rule changes (P: 7)2 induction · 2 weight · 1 engine · 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 rule changes (FV: 2)1 suspension & brakes · 1 tyres & wheelsshow | ||||||||||
| 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%) | |||||||
| No rule changes on record between these events | ||||||||||
| 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%) | |||||||
4 rule changes (FV: 4)4 weightshow | ||||||||||
| 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 | |||||||
| No rule changes on record between these events | ||||||||||
| 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 | |||||||
6 rule changes (FV: 6)6 tyres & wheelsshow
| ||||||||||
| 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 | |||||||
6 rule changes (FV: 6)1 induction · 1 suspension & brakes · 1 tyres & wheels · 3 othershow | ||||||||||
| 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 | |||||||
| 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 | ||||||||
| 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 | ||||||||
| 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 | ||||||||
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.