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BoP Lab / Classes / CFC

CFC vs GTA vs SSM vs B Spec pace at every track

Lap times across years say as much about the weather as the class. % of CFC is each class's best lap as a share of CFC'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)
ASvsB Spec×B-SpecCFC×EPF600FAFCFE2FFFPFVFXGT1GT2vsGTA×GTXHPPP2SMSMXSRF3vsSSM×STLSTUT1T2T3T4Show 166 inactive classes
Reference · what % is measured against
Tracks · untick to narrow
1:402:002:202:40CFC race best at Super Tour Aug 2020: 1:48.302 (Curtis Easterling)CFC qualifying best at Super Tour Aug 2020: 1:48.589 (Curtis Easterling)B Spec race best at Super Tour Apr 2018: 1:32.796 (John Phillips)B Spec qualifying best at Super Tour Apr 2018: 1:32.863 (John Phillips)B Spec qualifying best at Super Tour Feb 2023: 2:36.038 (Thomas Lepper)B Spec qualifying best at Super Tour Feb 2024: 2:16.080 (Thomas Lepper)Hallett Motor Racing Circuit · Super Tour Apr 2018Super Tour Apr2018Pittsburgh International Race Complex · Super Tour Aug 2020Super Tour Aug2020Buttonwillow Raceway Park · Super Tour Feb 2023Super Tour Feb2023Buttonwillow Raceway Park · Super Tour Feb 2024Super Tour Feb2024
CFCGTASSMB Specsolid race · dashed qualifying · slower is lower
100%CFC race best at Super Tour Aug 2020: 100.0% of CFC's (Curtis Easterling)CFC qualifying best at Super Tour Aug 2020: 100.0% of CFC's (Curtis Easterling)Hallett Motor Racing Circuit · Super Tour Apr 2018Super Tour Apr2018Pittsburgh International Race Complex · Super Tour Aug 2020Super Tour Aug2020Buttonwillow Raceway Park · Super Tour Feb 2023Super Tour Feb2023Buttonwillow Raceway Park · Super Tour Feb 2024Super Tour Feb2024
CFCGTASSMB Specsolid race · dashed qualifying · each class's best lap as a share of CFC's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventCFCGTASSMB Spec
Qual best Race best Trap Qual best Race best Trap vs CFC % of CFC Qual best Race best Trap vs CFC % of CFC Qual best Race best Trap vs CFC % of CFC 
Buttonwillow Raceway Park Super Tour Feb 20242024-02-232:16.080Thomas Lepper · fastest of 3 · top 3 within 2.3s-19.958s (-12.79%)93.9Ali Naimi+7.4 mph (+8.5%)
No rule changes on record between these events
Buttonwillow Raceway Park Super Tour Feb 20232023-02-242:36.038Thomas Lepper · only car86.6Thomas Lepper
No rule changes on record between these events
Pittsburgh International Race Complex Super Tour Aug 20202020-08-281:48.589Curtis Easterling · only car1:48.302Curtis Easterling · only car116.9Curtis Easterling
No rule changes on record between these events
Hallett Motor Racing Circuit Super Tour Apr 20182018-04-071:32.863John Phillips · fastest of 3 · top 3 within 1.8s1:32.796John Phillips · fastest of 3 · top 3 within 1.6s

By track

TrackEvents Typical % of CFC Best Latest 
Buttonwillow Raceway Park20 of 2 with CFC
Hallett Motor Racing Circuit10 of 1 with CFC
Pittsburgh International Race Complex1100.0%100.0%Super Tour Aug 2020100.0%Super Tour Aug 2020
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 CFC'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.