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BoP Lab / Buttonwillow Raceway Park

F500 vs SRF vs FB 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-SpecEPF500×FAvsFB×FCFE2FFFPFVvsFX×GT1GT2GTXHPPP2SMSMXvsSRF×SRF3STLSTUT1T2T3T4Show 12 inactive classes
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 · FB 1:38.870 Gary Hickman, Super Tour Apr 2018 race · FX 1:48.518 Bill Weaver, Super Tour Feb 2020 race

1:401:451:501:552:006 rule changes between Super Tour Apr 2018 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)FB race best at Super Tour Apr 2017: 1:40.111 (Gary Hickman)FB race best at Super Tour Apr 2018: 1:38.870 (Gary Hickman)FB qualifying best at Super Tour Apr 2017: 1:42.272 (John LaBrie)FB qualifying best at Super Tour Apr 2018: 1:39.142 (Gary Hickman)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 2017Super Tour Apr2017Super Tour Apr 2018Super Tour Apr2018Super Tour Feb 2020Super Tour Feb2020
F500SRFFBFXsolid race · dashed qualifying · slower is lower
EventF500SRFFBFX
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 suspension & brakes · 1 tyres & wheels · 1 weight · 1 wording · 2 other · Pro Formula F 2000 and USF2000 Tube Frame engine and car rules simplified; FC rules and FRP MAZDA MZR F2000 specs now apply directly.showhide
  • FX Change to FX Table 1 #28322wordingunclearPro Formula F 2000 and USF2000 Tube Frame engine and car rules simplified; FC rules and FRP MAZDA MZR F2000 specs now apply directly.
  • 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 2018 BUTTRA182018-04-271:39.142Gary Hickman · fastest of 2-3.130s (-3.06%)1:38.870Gary Hickman · fastest of 2-1.241s (-1.24%)
No rule changes on record between these events
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 1.8s1:42.272John LaBrie · fastest of 21:40.111Gary Hickman · fastest of 2

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.