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BoP Lab / Buttonwillow Raceway Park

BSpc vs SMX pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside (up to 4)
AS+B Spec+B-Spec+BSpc×EP+F5+F6+F500+FA+FB+FC+FE+FE 2+FE2+FF+FM+FP+FV+FX+GT1+GT2+GT3+GT3U+GTL+GTX+HP+P+P1+P2+PX+SM+vsSMX×SRF+SRF3+STL+STU+T1+T2+T3+T4+
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: SMX 1:56.431 Ethan Lampe, Cal Club 2025 qualifying

1:561:571:584 rule changes between Cal Club 2025 and Cal Club 20264 ▾SMX race best at Cal Club 2025: 1:57.417 (Ethan Lampe)SMX race best at Cal Club 2026: 1:57.973 (William Wallis)SMX qualifying best at Cal Club 2025: 1:56.431 (Ethan Lampe)SMX qualifying best at Cal Club 2026: 1:56.503 (Lincoln Larson)Cal Club 20252025Cal Club 20262026
BSpcSMXsolid race · dashed qualifying · slower is lower
EventBSpcSMX
Qual bestRace bestTrapQual bestRace bestTrapvs BSpc
Cal Club 2026 CALCL262026-02-211:56.503Lincoln Larson · fastest of 15 · top 5 within 0.7s+0.072s (+0.06%)1:57.973William Wallis · fastest of 15 · top 5 within 0.8s+0.556s (+0.47%)141.6Joey Andrews+28.0 mph (+24.6%)
4 rule changes (SMX: 4)1 tyres & wheels · 1 wording · 2 othershowhide
  • SMX SMX Data Submission - Penalties #38248other
  • SMX Committee) SMX Penaly Clarification updated language #38337wording
  • SMX Clarify Tire Marking Regs #38004tyres & wheels
  • SMX SMX Data Submission Timeframe #38039other
Cal Club 2025 CALCL252025-02-221:56.431Ethan Lampe · fastest of 15 · top 5 within 1.5s1:57.417Ethan Lampe · fastest of 15 · top 5 within 1.6s113.6Ryan Gutile
5 earlier rule changes on record, in force before Cal Club 2025 (from 2024)1 engine · 1 suspension & brakes · 1 wording · 2 othershowhide
  • SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • SMX SMX Camera Rule Correction #36496wording
  • SMX Committee) AIM ECU Protocol #36556engine
  • SMX Committee) OE versus OEM Definitons #36608other
  • SMX Committee) Shifter Bushing #36611suspension & brakes

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.