BoP Lab / Buttonwillow Raceway Park
View sectors & track maps
No map published for Cal Club 2021.
This track has been raced on 2 configurations (19, 2.92 mi; 3.02 mi). Laps on different configurations are not comparable, so only events on the 2.92 mile layout are shown; switch above to see the others.
BSpc has no laps in the events chosen. It ran at Cal Club 2021: add that event.
Sectors are not comparable across all of these events. Sector times and the theoretical lap use Super Tour Apr 2018, Cal Club 2022 only. Super Tour Apr 2019 (sectors cut at different points) counts towards whole-lap times and trap speed only.
| Pos | Car | Driver | Class | # | Lap | Theoretical | Qual | Race | 5-lap stint | Consistency | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mazda Star Mazda | Mike Anderson 2+ cars | FM | 42 | 1:45.954 I-R2 | 1:46.323 I-Q1 | 1:45.954 I-R2 | 1:46.212 I-R2 | +0.862 I-R2 | |||||
| 2 | Star Mazda Formula Mazda | Bill Weaver | FM | 67 | 1:46.609 I-Q2 | 1:46.609 I-Q2 | 1:46.933 I-R2 | 1:47.296 I-R2 | +0.615 I-R2 | |||||
| 3 | Mazda Formula | Brad Drew | FM | 78 | 1:47.430 I-Q2 | 1:47.430 I-Q2 | 1:49.098 I-R1 | 1:50.179 I-R1 | +1.676 I-R1 | |||||
| 4 | Formula Ma FM | Derry O'Donovan | FM | 77 | 1:48.252 I-Q2 | 1:48.252 I-Q2 | 1:48.410 I-R1 | 1:50.104 I-R1 | +2.509 I-R1 | |||||
| 5 | Mazda Formula Mazda | Woody Yerxa | FM | 7 | 1:48.448 I-Q2 | 1:48.448 I-Q2 | 1:49.292 I-R1 | 1:50.161 I-R1 | +3.616 I-R1 | |||||
| 6 | Star Formula Mazda | Mike Anderson 2+ cars | FM | 42 | 1:49.409 H-R2 | 1:49.608 H-Q2 | 1:49.409 H-R2 | 1:49.718 H-R2 | +1.168 H-R2 | 121.2 H-Q2 | ||||
| 7 | Mazda Formula | Bruce Semler | FM | 89 | 1:50.510 I-Q2 | 1:50.510 I-Q2 | 1:50.975 I-R2 | 1:51.583 I-R2 | +1.641 I-R2 | |||||
| 8 | Star Formula Mazda | Lars Jensen | FM | 63 | 1:50.597 I-R2 | 1:51.442 I-Q1 | 1:50.597 I-R2 | 1:52.382 I-R1 | +1.929 I-R1 | |||||
| 9 | Mazda FM | Bruce Carpenter | FM | 92 | 1:50.804 I-Q2 | 1:50.804 I-Q2 | 1:50.958 I-R2 | 1:51.279 I-R2 | +1.401 I-R2 | |||||
| 10 | Mazda Formula Mazda | Ritchie Hollingsworth | FM | 9 | 1:51.619 I-Q1 | 1:51.619 I-Q1 | 1:52.336 I-R1 | 1:53.212 I-R1 | +1.884 I-R1 | |||||
| 11 | Star Formula Mazda | Terrance Carraher | FM | 6 | 1:53.148 H-Q2 | 1:53.148 H-Q2 | 1:53.156 H-R2 | 1:54.268 H-R1 | +2.675 H-R1 | 118.4 H-P | ||||
| 12 | Star Formula Mazda | Tom Van Wie | FM | 23 | 1:54.307 H-R2 | 1:55.245 H-Q2 | 1:54.307 H-R2 | 1:56.086 H-R2 | +1.895 H-R2 | 118.2 H-P | ||||
| 13 | KBS MK VII | Lance Spiering | F500 | 29 | 1:58.561 E-R2 | sector data unreliable | 2:03.309 E-Q1 | 1:58.561 E-R2 | 2:00.962 E-R2 | +3.233 E-R2 | 111.9 E-R2 | 38.194 | 36.558 | 37.399 |
One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.
Sectors
- S1 SF → IM1 1.00 mi
- S2 IM1 → IM3 1.00 mi
- S3 IM3 → SF 0.92 mi
- SPd IM2 → IM3 0.02 mi
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
By car
| Car | Class | Drivers | Lap | Qual | Race | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|
| Mazda Formula Mazda | FM | 5 | 1:45.954Mike Anderson | 1:46.323Mike Anderson | 1:45.954Mike Anderson | ||||
| Mazda Star Mazda | FM | 1 | 1:45.954Mike Anderson | 1:46.323Mike Anderson | 1:45.954Mike Anderson | ||||
| Mazda Formula | FM | 2 | 1:47.430Brad Drew | 1:47.430Brad Drew | 1:49.098Brad Drew | ||||
| Mazda Formula Mazda | FM | 2 | 1:48.448Woody Yerxa | 1:48.448Woody Yerxa | 1:49.292Woody Yerxa | ||||
| Star Formula Mazda | FM | 5 | 1:46.609Bill Weaver | 1:46.609Bill Weaver | 1:46.933Bill Weaver | 121.2Mike Anderson | |||
| Star Mazda Formula Mazda | FM | 1 | 1:46.609Bill Weaver | 1:46.609Bill Weaver | 1:46.933Bill Weaver | ||||
| Star Formula Mazda | FM | 4 | 1:49.409Mike Anderson | 1:49.608Mike Anderson | 1:49.409Mike Anderson | 121.2Mike Anderson | |||
| Formula Ma FM | FM | 1 | 1:48.252Derry O'Donovan | 1:48.252Derry O'Donovan | 1:48.410Derry O'Donovan | ||||
| Mazda FM | FM | 1 | 1:50.804Bruce Carpenter | 1:50.804Bruce Carpenter | 1:50.958Bruce Carpenter | ||||
| KBS MK VII | F500 | 1 | 1:58.561Lance Spiering | 2:03.309Lance Spiering | 1:58.561Lance Spiering | 111.9Lance Spiering | 38.194Lance Spiering | 36.558Lance Spiering | 37.399Lance Spiering |
The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.
Rule changes between these events
Super Tour Apr 2018 → Super Tour Apr 2019 2018-04-27 to 2019-04-26
No changes on record for these classes.
Super Tour Apr 2019 → Cal Club 2021 2019-04-26 to 2021-02-19
No changes on record for these classes.
Cal Club 2021 → Cal Club 2022 2021-02-19 to 2022-02-17
No changes on record for these classes.
What the rules allowed changed as listed; this does not say what any particular car ran.