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BoP Lab / Classes / CTC

CTC vs CF vs SSM vs F600 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: remove one to add another)
ASB-SpecvsCF×CTC×EPvsF600×FAFCFE2FFFPFVFXGT1GT2GTXHPPP2SMSMXSRF3vsSSM×STLSTUT1T2T3T4Show 53 inactive classes
Reference · what % is measured against
Tracks · untick to narrow
1:301:401:502:0010 rule changes between Majors May 2016 and Spring Fling 202610 ▾CTC race best at Majors @ Pacific Raceway: 1:47.167 (William Hendrickson)CTC qualifying best at Majors @ Pacific Raceway: 1:48.686 (William Hendrickson)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)SSM race best at Majors Apr 2016: 1:29.237 (Kevin Kopp)SSM qualifying best at Majors Apr 2016: 1:31.569 (Alan Olson)F600 race best at Spring Fling 2026: 1:41.726 (Carl Maier)Summit Point Raceway · Majors Apr 2016Majors Apr2016Pacific Raceways · Majors @ Pacific RacewayMajors @ Pacific Raceway2016Pueblo Motorsports Park · Majors May 2016Majors May2016MotorSport Ranch Cresson · Spring Fling 2026Spring Fling2026Pueblo 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
CTCCFSSMF600solid race · dashed qualifying · slower is lower
100%10 rule changes between Majors May 2016 and Spring Fling 202610 ▾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)Summit Point Raceway · Majors Apr 2016Majors Apr2016Pacific Raceways · Majors @ Pacific RacewayMajors @ Pacific Raceway2016Pueblo Motorsports Park · Majors May 2016Majors May2016MotorSport Ranch Cresson · Spring Fling 2026Spring Fling2026Pueblo 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
CTCCFSSMF600solid 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
EventCTCCFSSMF600
Qual best Race best Trap Qual best Race best Trap vs CTC % of CTC Qual best Race best Trap vs CTC % of CTC Qual best Race best Trap vs CTC % of CTC 
High Plains Raceway Last Chance 2026results only2026-08-221:54.780Levi Zeidlhack · fastest of 2-2.541s (-2.17%)
No rule changes on record between these events
High Plains Raceway Colorado Freedom Sprints 2026results only2026-07-041:57.321Levi Zeidlhack · fastest of 2
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%)
No rule changes on record between these events
MotorSport Ranch Cresson Spring Fling 2026results only2026-04-031:41.726Carl Maier · only car
10 rule changes (F600: 10)7 engine · 2 weight · 1 inductionshowhide
  • F600 Request for oversize forged pistons for 593 (non-HO) #36263engine
  • F600 Additional Clarification from Letter #34774 Intake Manifolds F600 #35766induction
  • F600 Please correct omitted punctuation #34890weight
  • F600 Please Increase Replacement Piston Availability for 593 Non-H.O. #34971engine
  • F600 Correct Part Number Error for SPARKER Ignition #35186engine
  • F600 E&O F600 motorcycle engines #34774engine
  • F600 F600 Rules Clarification #34780engine
  • F600 Allow the #420924502 Rotary Valve in the Rotax Model 494 Engine. #33584engine
  • F600 Weight Reduction on Older Rotax-Engined Cars #33613weight -25 lbs
  • F600 593HO Alternate Piston #33588engine
Pueblo Motorsports Park Majors May 20162016-05-281:37.406David Loken · fastest of 10 · top 5 within 2.2s
No rule changes on record between these events
Pacific Raceways Majors @ Pacific Raceway2016-05-281:48.686William Hendrickson · only car1:47.167William Hendrickson · only car
No rule changes on record between these events
Summit Point Raceway Majors Apr 20162016-04-291:31.569Alan Olson · fastest of 26 · top 5 within 1.9s1:29.237Kevin Kopp · fastest of 27 · top 5 within 0.3s

By track

TrackEvents Typical % of CTC Best Latest 
High Plains Raceway20 of 2 with CTC
Pueblo Motorsports Park20 of 2 with CTC
MotorSport Ranch Cresson10 of 1 with CTC
Pacific Raceways1100.0%100.0%Majors @ Pacific Raceway100.0%Majors @ Pacific Raceway
Roebling Road10 of 1 with CTC
Summit Point Raceway10 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.