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BoP Lab / Classes / CTB

CTB vs CF vs S7 vs SUN pace at every track

Lap times across years say as much about the weather as the class. % of CTB is each class's best lap as a share of CTB'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.

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB-SpecvsCF×CTB×EPF600FAFCFE2FFFPFVFXGT1GT2GTXHPPP2vsS7×SMSMXSRF3STLSTUvsSUN×T1T2T3T4Show 174 inactive classes
Reference · what % is measured against
Tracks · untick to narrow
1:402:002:20CTB race best at Majors @ Pacific Raceway: 1:38.292 (Greg Fordahl)CF race best at Majors May 2016: 1:37.406 (David Loken)CF race best at Colorado Home Heroes Grand Prix 2026: 1:37.686 (Levi Zeidlhack)CF race best at Southeast SARRC 2026: 1:26.210 (W. L. Manofsky)CF race best at Colorado Freedom Sprints 2026: 1:57.321 (Levi Zeidlhack)CF race best at Last Chance 2026: 1:54.780 (Levi Zeidlhack)S7 race best at Majors May 2016: 1:56.632 (Mark Miller)S7 race best at Colorado Home Heroes Grand Prix 2026: 1:58.704 (Randy Roybal)S7 race best at Colorado Freedom Sprints 2026: 2:16.757 (Mark Miller)S7 race best at Last Chance 2026: 2:15.526 (Christian Miller)Pacific Raceways · Majors @ Pacific RacewayMajors @ Pacific Raceway2016Pueblo Motorsports Park · Majors May 2016Majors May2016Pueblo Motorsports Park · Colorado Home Heroes Grand Prix 2026Colorado Home Heroes Grand Prix2026Roebling Road · Southeast SARRC 2026Southeast SARRC2026High Plains Raceway · Colorado Freedom Sprints 2026Colorado Freedom Sprints2026High Plains Raceway · Last Chance 2026Last Chance2026
CTBCFS7SUNsolid race · dashed qualifying · slower is lower
100%CTB race best at Majors @ Pacific Raceway: 100.0% of CTB's (Greg Fordahl)Pacific Raceways · Majors @ Pacific RacewayMajors @ Pacific Raceway2016Pueblo Motorsports Park · Majors May 2016Majors May2016Pueblo Motorsports Park · Colorado Home Heroes Grand Prix 2026Colorado Home Heroes Grand Prix2026Roebling Road · Southeast SARRC 2026Southeast SARRC2026High Plains Raceway · Colorado Freedom Sprints 2026Colorado Freedom Sprints2026High Plains Raceway · Last Chance 2026Last Chance2026
CTBCFS7SUNsolid race · dashed qualifying · each class's best lap as a share of CTB's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventCTBCFS7SUN
Qual best Race best Trap Qual best Race best Trap vs CTB % of CTB Qual best Race best Trap vs CTB % of CTB Qual best Race best Trap vs CTB % of CTB 
High Plains Raceway Last Chance 2026results only2026-08-221:54.780Levi Zeidlhack · fastest of 2-2.541s (-2.17%)2:15.526Christian Miller · fastest of 6 · top 5 within 6.1s-1.231s (-0.90%)
No rule changes on record between these events
High Plains Raceway Colorado Freedom Sprints 2026results only2026-07-041:57.321Levi Zeidlhack · fastest of 22:16.757Mark Miller · fastest of 4 · top 4 within 4.5s
No rule changes on record between these events
Roebling Road Southeast SARRC 2026results only2026-06-271:26.210W. L. Manofsky · only car
No rule changes on record between these events
Pueblo Motorsports Park Colorado Home Heroes Grand Prix 2026results only2026-05-231:37.686Levi Zeidlhack · fastest of 3 · top 3 within 7.2s+0.280s (+0.29%)1:58.704Randy Roybal · fastest of 2+2.072s (+1.78%)
No rule changes on record between these events
Pueblo Motorsports Park Majors May 20162016-05-281:37.406David Loken · fastest of 10 · top 5 within 2.2s1:56.632Mark Miller · fastest of 4 · top 4 within 12.3s
No rule changes on record between these events
Pacific Raceways Majors @ Pacific Raceway2016-05-281:38.292Greg Fordahl · only car

By track

TrackEvents Typical % of CTB Best Latest 
High Plains Raceway20 of 2 with CTB
Pueblo Motorsports Park20 of 2 with CTB
Pacific Raceways1100.0%100.0%Majors @ Pacific Raceway100.0%Majors @ Pacific Raceway
Roebling Road10 of 1 with CTB
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 CTB'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.