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BoP Lab / Classes / SPU

SPU vs FRI vs S7 pace at every track

Lap times across years say as much about the weather as the class. % of SPU is each class's best lap as a share of SPU'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+EP+F600+FA+FC+FE2+FF+FP+vsFRI×FV+FX+GT1+GT2+GTX+HP+P+P2+vsS7×SM+SMX+SPU×SRF3+STL+STU+T1+T2+T3+T4+Show 181 inactive classes
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: SPU 100.0% of SPU Ricky Sanders, Carolina Motorsports Park Southeast 2026 race

1:201:402:002:20SPU race best at SARRC 2020: 1:43.713 (Ricky Sanders)SPU race best at Southeast 2026: 1:48.274 (Ricky Sanders)SPU race best at Northwest Pacific Grand Prix 2026: 1:34.122 (Rick Gough)SPU race best at Southeast SARRC 2026: 1:21.559 (Tad Segars)SPU qualifying best at SARRC 2020: 1:47.450 (Randy Hutchings)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)Pueblo Motorsports Park · Majors May 2016Majors May2016Michelin Raceway Road Atlanta · SARRC 2020SARRC2020Carolina Motorsports Park · Southeast 2026Southeast2026Pacific Raceways · Northwest Pacific Grand Prix 2026Northwest Pacific Grand Prix2026Pueblo 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
SPUFRIS7solid race · dashed qualifying · slower is lower
100%SPU race best at SARRC 2020: 100.0% of SPU's (Ricky Sanders)SPU race best at Southeast 2026: 100.0% of SPU's (Ricky Sanders)SPU race best at Northwest Pacific Grand Prix 2026: 100.0% of SPU's (Rick Gough)SPU race best at Southeast SARRC 2026: 100.0% of SPU's (Tad Segars)SPU qualifying best at SARRC 2020: 100.0% of SPU's (Randy Hutchings)Pueblo Motorsports Park · Majors May 2016Majors May2016Michelin Raceway Road Atlanta · SARRC 2020SARRC2020Carolina Motorsports Park · Southeast 2026Southeast2026Pacific Raceways · Northwest Pacific Grand Prix 2026Northwest Pacific Grand Prix2026Pueblo 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
SPUFRIS7solid race · dashed qualifying · each class's best lap as a share of SPU's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventSPUFRIS7
Qual best Race best Trap Qual best Race best Trap vs SPU % of SPU Qual best Race best Trap vs SPU % of SPU 
High Plains Raceway Last Chance 2026results only2026-08-222:15.526Christian 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 only2026-07-042:16.757Mark Miller · fastest of 4 · top 4 within 4.5s
No rule changes on record between these events
Roebling Road Southeast SARRC 2026results only2026-06-271:21.559Tad Segars · fastest of 2
No rule changes on record between these events
Pueblo Motorsports Park Colorado Home Heroes Grand Prix 2026results only2026-05-231:58.704Randy Roybal · fastest of 2+2.072s (+1.78%)
No rule changes on record between these events
Pacific Raceways Northwest Pacific Grand Prix 2026results only2026-05-231:34.122Rick Gough · fastest of 3 · top 3 within 8.4s
No rule changes on record between these events
Carolina Motorsports Park Southeast 2026results only2026-05-231:48.274Ricky Sanders · fastest of 3 · top 3 within 6.8s
No rule changes on record between these events
Michelin Raceway Road Atlanta SARRC 20202020-07-251:47.450Randy Hutchings · only car1:43.713Ricky Sanders · fastest of 2119.9Ricky Sanders
No rule changes on record between these events
Pueblo Motorsports Park Majors May 20162016-05-281:56.632Mark Miller · fastest of 4 · top 4 within 12.3s

By track

TrackEvents Typical % of SPU Best Latest 
High Plains Raceway20 of 2 with SPU
Pueblo Motorsports Park20 of 2 with SPU
Carolina Motorsports Park1100.0%100.0%Southeast 2026100.0%Southeast 2026
Michelin Raceway Road Atlanta1100.0%100.0%SARRC 2020100.0%SARRC 2020
Pacific Raceways1100.0%100.0%Northwest Pacific Grand Prix 2026100.0%Northwest Pacific Grand Prix 2026
Roebling Road1100.0%100.0%Southeast SARRC 2026100.0%Southeast SARRC 2026
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 SPU'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.