BoP Lab / Buttonwillow Raceway Park
SRF vs FM vs FE pace at Buttonwillow Raceway Park
Lap times across years say as much about the weather as the class. % of SRF is each class's best lap as a share of SRF'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.
Quickest here: SRF 1:44.060 Vince Balch, Super Tour Apr 2017 qualifying · FM 1:45.954 Mike Anderson, Super Tour Apr 2018 race · FE 1:47.040 Brandon Chappell, Super Tour Apr 2018 race
| Event | SRF | FM | FE | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Qual best | Race best | Trap | Qual best | Race best | Trap | vs SRF | % of SRF | Qual best | Race best | Trap | vs SRF | % of SRF | |||
| Super Tour Apr 2019 ST19APR262019-04-26 | 1:49.608Mike Anderson · fastest of 3 · top 3 within 5.6s+3.285s (+3.09%) | 1:49.409Mike Anderson · fastest of 3 · top 3 within 4.9s+3.455s (+3.26%) | 121.2Mike Anderson | 1:49.749Jeff Read · only car+2.153s (+2.00%) | 1:50.132Jeff Read · fastest of 2+3.092s (+2.89%) | 119.6Joe Reppert | |||||||||
1 rule change (FE: 1)1 tyres & wheels · FE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3.show
| |||||||||||||||
| Super Tour Apr 2018 BUTTRA182018-04-27 | 1:46.323Mike Anderson · fastest of 9 · top 5 within 2.1s+0.367s (+0.35%) | 1:45.954Mike Anderson · fastest of 9 · top 5 within 3.3s-0.317s (-0.30%) | 1:47.596John Yeatman · fastest of 3 · top 3 within 13.1s-1.154s (-1.06%) | 1:47.040Brandon Chappell · fastest of 3 · top 3 within 11.2s-1.159s (-1.07%) | |||||||||||
| No rule changes on record between these events | |||||||||||||||
| Super Tour Apr 2017 BUTTRA172017-04-28 | 1:44.060Vince Balch · fastest of 8 · top 5 within 18.6s | 2:01.122Mike Miserendino · fastest of 7 · top 5 within 1.8s | 1:45.956Mike Anderson · fastest of 8 · top 5 within 2.0s | 1:46.271Mike Anderson · fastest of 10 · top 5 within 2.1s | -14.851squal +1.896s | 87.7%qual 101.8% | 1:48.750Brandon Aleckson · fastest of 2 | 1:48.199Brandon Aleckson · fastest of 2 | -12.923squal +4.690s | 89.3%qual 104.5% | |||||
About this data
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. "% of SRF" is the class's best as a share of SRF's best at the same event (100% is level, less is quicker): weather and track condition move every class together, so this compares across years where the raw times do not. It still breaks when SRF's own field changes or one session was wet and another dry. 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.