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ITR vs CF vs SSM pace at every track

Lap times across years say as much about the weather as the class. % of ITR is each class's best lap as a share of ITR'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)
1D+AS+B Spec+B-spec+B-Spec+BS+BSpc+BSpec+C6+vsCF×CFC+CTA+CTB+CTC+CTD+EP+EPx+F5+F6+F500+F1000+FA+FB+FC+FE+FE 2+FE2+FF+FM+FP+FRI+FV+FX+GT-1+GT-2+GT-X+GT1+GT2+GT3+GT3U+GTA+GTL+GTX+HP+IT7+ITA+ITB+ITC+ITE+ITE-O+ITR×ITS+P+P1+P2+PX+S7+SM+SM +SMSE+SMSE-T+SMX+SPU+SRF+SRF 3+SRF3+vsSSM×STL+STU+SUN+T1+T2+T3+T4+TTA+Unknown+Hide inactive classes
Reference · what % is measured against
Tracks · untick to narrow
1:101:201:301:40ITR race best at Majors May 2016: 1:13.673 (Robert G Wright)ITR qualifying best at Majors May 2016: 1:12.883 (Robert G. Wright)CF race best at Majors May 2016: 1:37.406 (David Loken)SSM race best at Majors Apr 2016: 1:29.237 (Kevin Kopp)SSM qualifying best at Majors Apr 2016: 1:31.569 (Alan Olson)Summit Point Raceway · Majors Apr 2016Majors Apr2016Circuit of St. Louis (formerly Gateway Motorsports · Majors May 2016Majors May2016Pueblo Motorsports Park · Majors May 2016Majors May2016
ITRCFSSMsolid race · dashed qualifying · slower is lower
100%ITR race best at Majors May 2016: 100.0% of ITR's (Robert G Wright)ITR qualifying best at Majors May 2016: 100.0% of ITR's (Robert G. Wright)Summit Point Raceway · Majors Apr 2016Majors Apr2016Circuit of St. Louis (formerly Gateway Motorsports · Majors May 2016Majors May2016Pueblo Motorsports Park · Majors May 2016Majors May2016
ITRCFSSMsolid race · dashed qualifying · each class's best lap as a share of ITR's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventITRCFSSM
Qual best Race best Trap Qual best Race best Trap vs ITR % of ITR Qual best Race best Trap vs ITR % of ITR 
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
Circuit of St. Louis (formerly Gateway Motorsports Majors May 20162016-05-141:12.883Robert G. Wright · only car1:13.673Robert G Wright · 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 ITR Best Latest 
Circuit of St. Louis (formerly Gateway Motorsports1100.0%100.0%Majors May 2016100.0%Majors May 2016
Pueblo Motorsports Park10 of 1 with ITR
Summit Point Raceway10 of 1 with ITR
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 ITR'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.