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BoP Lab / Buttonwillow Raceway Park

F500 vs SRF vs F6 vs FX pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB SpecB-SpecBSpcEPF5vsF6×F500×FAFBFCFEFE 2FE2FFFMFPFVvsFX×GT1GT2GT3GT3UGTLGTXHPPP1P2PXSMSMXvsSRF×SRF3STLSTUT1T2T3T4
Reference class · the others' laps as a share of this one's at the same event, so years compare despite weather; + a class above to measure against it
Track configuration

Quickest here: SRF 1:44.060 Vince Balch, Super Tour Apr 2017 qualifying · FX 1:48.518 Bill Weaver, Super Tour Feb 2020 race

1:451:501:552:006 rule changes between Super Tour Apr 2017 and Super Tour Feb 20206 ▾SRF race best at Super Tour Apr 2017: 2:01.122 (Mike Miserendino)SRF qualifying best at Super Tour Apr 2017: 1:44.060 (Vince Balch)FX race best at Super Tour Feb 2020: 1:48.518 (Bill Weaver)FX qualifying best at Super Tour Feb 2020: 1:49.320 (Steve Martin)Super Tour Apr 20172017Super Tour Feb 20202020
F500SRFF6FXsolid race · dashed qualifying · slower is lower
EventF500SRFF6FX
Qual bestRace bestTrapQual bestRace bestTrapvs F500Qual bestRace bestTrapvs F500Qual bestRace bestTrapvs F500
Super Tour Feb 2020 ST20FEB212020-02-211:49.320Steve Martin · fastest of 5 · top 5 within 6.7s1:48.518Bill Weaver · fastest of 5 · top 5 within 6.8s129.9Steve Martin
6 rule changes (SRF: 5, FX: 1)1 induction · 1 suspension & brakes · 1 tyres & wheels · 1 weight · 2 othershowhide
  • FX Change to FX Table 1 #28322induction
  • SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • SRF SRF Tire Warmer Rule #27622tyres & wheels
  • SRF SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF SRF / SRF3 Majors & Regional Class Updates #27723other
  • SRF SRF Dash Windscreen Kit #27028other
Super Tour Apr 2017 BUTTRA172017-04-281:44.060Vince Balch · fastest of 8 · top 5 within 18.6s2:01.122Mike Miserendino · fastest of 7 · top 5 within 1.8s

Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it, how many cars set a time that session and how close the top five were; a best from fewer than three cars is greyed. With two or more classes, "vs" is the gap of each class's best to the first class's at the same event. Newest event first. The coloured figure under each value is the change from the previous event that has one (green is quicker, red slower). Whole laps only, so events with different sector layouts still compare. Weather and track condition are not accounted for.