BoP Lab / Classes / Unknown
Unknown vs CF vs SSM pace at every track
Lap times across years say as much about the weather as the class. % of Unknown is each class's best lap as a share of Unknown'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.
| Event | Unknown | CF | SSM | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs Unknown | % of Unknown | Qual best | Race best | Trap | vs Unknown | % of Unknown | |||
| High Plains Raceway Last Chance 2026results only2026-08-22 | 1:54.780Levi Zeidlhack · fastest of 2-2.541s (-2.17%) | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| High Plains Raceway Colorado Freedom Sprints 2026results only2026-07-04 | 1:57.321Levi Zeidlhack · fastest of 2 | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Roebling Road Southeast SARRC 2026results only2026-06-27 | 1:26.210W. L. Manofsky · only car | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Pueblo Motorsports Park Colorado Home Heroes Grand Prix 2026results only2026-05-23 | 1:37.686Levi Zeidlhack · fastest of 3 · top 3 within 7.2s+0.280s (+0.29%) | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Carolina Motorsports Park Southeast 2026results only2026-05-23 | 1:57.932Estus White IV · fastest of 6 · top 5 within 4.2s | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Thunderhill Raceway Park Majors Apr 2026results only2026-04-25 | 2:16.441James Powell · fastest of 2 | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Pueblo Motorsports Park Majors May 20162016-05-28 | 1:37.406David Loken · fastest of 10 · top 5 within 2.2s | ||||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Pacific Raceways Majors @ Pacific Raceway2016-05-28 | 1:37.243Larry Sandham · only car | 1:35.953Larry Sandham · only car | |||||||||||||
| No rule changes on record between these events | |||||||||||||||
| Summit Point Raceway Majors Apr 20162016-04-29 | 1:31.569Alan Olson · fastest of 26 · top 5 within 1.9s | 1:29.237Kevin Kopp · fastest of 27 · top 5 within 0.3s | |||||||||||||
By track
| Track | Events | Typical % of Unknown | Best | Latest |
|---|---|---|---|---|
| High Plains Raceway | 2 | 0 of 2 with Unknown | ||
| Pueblo Motorsports Park | 2 | 0 of 2 with Unknown | ||
| Carolina Motorsports Park | 1 | 0 of 1 with Unknown | ||
| Pacific Raceways | 1 | 100.0% | 100.0%Majors @ Pacific Raceway | 100.0%Majors @ Pacific Raceway |
| Roebling Road | 1 | 0 of 1 with Unknown | ||
| Summit Point Raceway | 1 | 0 of 1 with Unknown | ||
| Thunderhill Raceway Park | 1 | 0 of 1 with Unknown |
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 Unknown'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.