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BoP Lab / Classes / CTC

CTC vs FRI vs SMSE pace at every track

Lap times across years say as much about the weather as the class. % of CTC is each class's best lap as a share of CTC'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)
AS+B-Spec+CTC×EP+F600+FA+FC+FE2+FF+FP+vsFRI×FV+FX+GT1+GT2+GTX+HP+P+P2+SM+vsSMSE×SMX+SRF3+STL+STU+T1+T2+T3+T4+Show 175 inactive classes
Reference · what % is measured against
Tracks · untick to narrow
1:251:301:351:401:451:50CTC race best at Majors @ Pacific Raceway: 1:47.167 (William Hendrickson)CTC qualifying best at Majors @ Pacific Raceway: 1:48.686 (William Hendrickson)SMSE race best at SARRC 2020: 1:48.433 (Frederick Baker)SMSE race best at Southeast SARRC 2026: 1:24.608 (James Brown)SMSE qualifying best at SARRC 2020: 1:47.184 (Frederick Baker)Pacific Raceways · Majors @ Pacific RacewayMajors @ Pacific Raceway2016Michelin Raceway Road Atlanta · SARRC 2020SARRC2020Roebling Road · Southeast SARRC 2026Southeast SARRC2026
CTCFRISMSEsolid race · dashed qualifying · slower is lower
100%CTC race best at Majors @ Pacific Raceway: 100.0% of CTC's (William Hendrickson)CTC qualifying best at Majors @ Pacific Raceway: 100.0% of CTC's (William Hendrickson)Pacific Raceways · Majors @ Pacific RacewayMajors @ Pacific Raceway2016Michelin Raceway Road Atlanta · SARRC 2020SARRC2020Roebling Road · Southeast SARRC 2026Southeast SARRC2026
CTCFRISMSEsolid race · dashed qualifying · each class's best lap as a share of CTC's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventCTCFRISMSE
Qual best Race best Trap Qual best Race best Trap vs CTC % of CTC Qual best Race best Trap vs CTC % of CTC 
Roebling Road Southeast SARRC 2026results only2026-06-271:24.608James Brown · fastest of 3 · top 3 within 0.8s
No rule changes on record between these events
Michelin Raceway Road Atlanta SARRC 20202020-07-251:47.184Frederick Baker · fastest of 4 · top 4 within 4.9s1:48.433Frederick Baker · fastest of 4 · top 4 within 6.3s107.4Ken Steagall
No rule changes on record between these events
Pacific Raceways Majors @ Pacific Raceway2016-05-281:48.686William Hendrickson · only car1:47.167William Hendrickson · only car

By track

TrackEvents Typical % of CTC Best Latest 
Michelin Raceway Road Atlanta10 of 1 with CTC
Pacific Raceways1100.0%100.0%Majors @ Pacific Raceway100.0%Majors @ Pacific Raceway
Roebling Road10 of 1 with CTC
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 CTC'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.