BoP Lab / Buttonwillow Raceway Park
This track has been raced on 2 configurations (The Circuit, 2.57 mi; 2.92 mi). Laps on different configurations are not comparable, so only events on the 2.57 mile layout are shown; switch above to see the others.
| Pos | Car | Driver | Class | # | Lap | Theoretical | Qual | Race | 5-lap stint | Consistency | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Swift 016 | Greg Labadie | FA | 35 | 1:35.792 A-Q1 | 1:35.351 | 1:35.792 A-Q1 | 1:37.275 A-R1 | 1:37.692 A-R1 | +3.958 A-R1 | 163.8 A-R1 | 26.713 A-Q2 | 26.816 A-Q1 | 41.822 A-Q1 |
| 2 | SCCA Ent FE2 | Jon McClintock | FE2 | 23 | 1:39.265 A-Q2 | 1:39.265 | 1:39.265 A-Q2 | 1:40.253 A-R1 | 1:40.602 A-R1 | +1.377 A-R1 | 152.6 A-Q2 | 27.464 A-Q2 | 28.773 A-Q2 | 43.028 A-Q2 |
| 3 | SCCA Ent FE2 | Paul Marino | FE2 | 44 | 1:39.358 B-Q2 | 1:39.209 | 1:39.358 B-Q2 | 1:39.712 B-R1 | 1:40.188 B-R1 | +0.849 B-R1 | 156.6 A-Q1 | 27.234 B-Q2 | 28.582 B-R1 | 43.393 B-Q2 |
| 4 | SCCA Ent FE2 | Tom Hope | FE2 | 18 | 1:39.452 B-Q2 | 1:39.393 | 1:39.452 B-Q2 | 1:39.992 B-R1 | 1:40.186 B-R1 | +0.531 B-R1 | 125.6 B-Q1 | 27.375 B-Q2 | 28.661 B-Q2 | 43.357 B-Q1 |
| 5 | SCCA Ent FE2 | Tom Burt | FE2 | 45 | 1:40.774 B-Q1 | 1:40.569 | 1:40.774 B-Q1 | 1:40.955 B-R1 | 1:41.516 B-R1 | +0.989 B-R1 | 154.7 A-R1 | 27.836 B-R1 | 29.021 A-Q2 | 43.712 B-Q1 |
| 6 | SCCA Ent FE2 | Noah Hambayi | FE2 | 64 | 1:40.848 B-Q2 | 1:40.673 | 1:40.848 B-Q2 | 1:41.416 B-R2 | 1:41.703 B-R2 | +1.034 B-R2 | 142.4 B-P | 27.646 B-R2 | 28.966 B-Q2 | 44.061 B-P |
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 are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
| Car | Class | Drivers | Lap | Qual | Race | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|
| Swift 016 | FA | 1 | 1:35.792Greg Labadie | 1:35.792Greg Labadie | 1:37.275Greg Labadie | 163.8Greg Labadie | 26.713Greg Labadie | 26.816Greg Labadie | 41.822Greg Labadie |
| SCCA Ent FE2 | FE2 | 5 | 1:39.265Jon McClintock | 1:39.265Jon McClintock | 1:39.712Paul Marino | 156.6Paul Marino | 27.234Paul Marino | 28.582Paul Marino | 43.028Jon McClintock |
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.
#37658 from Club Racing Board · Rule change · TB 25-02 (2025-02 Fastrack)
neutralFA adds Tatuus F.3 T-318 or FR-19 as spec line car in Table 2 for Formula Regional European Championship.In FA Table 2, add the following:
Table 2 (Spec Line Cars)
Car Engine
Wheel
Width (in)
± .060
Aero Transmission Weight Notes
A specification table follows in the original; it is not shown here.
#37853 from Club Racing Board · Rule change · TB 25-03 (2025-03 Fastrack)
neutralFA Formula Renault 2.0 (10-17) spec notes clarified: engine sealed, manual compliance required, tire choice unrestricted, no alterations except repairs.In FA Table 2, Formula Renault 2.0 (10-17) spec line, change the notes as follows:
"Engine must remain sealed. Car must comply with year-specific Formula Renault 2.0 manual, technical regulations, and all
applicable bulletins found here:. Competitors must have copies of these materials in their possession and present them upon
request.https://sites.google.com/a/renault-sport.com/formule-renault-2-0-en/bulletins-techniques/2017,https://sites.google.com/a/renault-sport.com/formule-renault-2-0-en/manuel-d-utilisateur/2017.
The following exceptions apply: Tire choice is unrestricted. No part of the car may be altered from original Formula Renault 2.0
components, except for necessary repairs that do not affect performance."
#37965 from Robey Clark · Rule change · TB 25-04 (2025-04 Fastrack)
neutralFE2 allows driver safety and comfort modifications for disabled drivers with SCCA approval, not transferable to other drivers.In FE2, GCR section 9.1.1.G.2.E, add the following:
"g. Driver Safety and Comfort modifications to seat and controls for drivers with disabilities may be made only by approval. These
modifications must be reported to SCCA Enterprises and noted in the car logbook. The modifications are approved only for the
noted driver with disabilities. If the car is used by or sold to another driver, it must be returned to the previous standard
configuration."
#38434 from Rocco Magni · Rule change · TB 25-07 (2025-07 Fastrack)
neutralFA Ligier JS F3 front tires may be Hoosier 43363 240/580R13 MS, rear 43368 300/590R13 MS.In FA Table 2, FR Americas Ligier JS F3 spec line, change the notes as follows:
"Engine must be sealed in compliance with FR Americas or prior F3 Americas requirements. Car must comply with FR Americas
rules, with the following exception: front tires may be Hoosier P/N 43363, size 240/580R13 in MS compound, and rear tires may
be Hoosier P/N 43368, size 300/590R13 in MS compound. Competitors must have current copies of Formula Regional Americas
Championship Sporting Regulations, Onroak Automotive Ligier JS F3 Information Manual, and HPD engine-related specifications
and instructions in their possession and present them upon request."
#38978 from Robey Clark · Rule change · TB 25-10 (2025-10 Fastrack)
neutralFE and FE2 Enterprises must use bubble tail P/N WM138014; FE2 allows only this configuration.In FE, GCR section 9.1.1.G.2.F.k, change as follows:
"Enterprises bubble tail P/N: WM138014 is allowed for FE and is the only configuration for FE2."
#38783 from Augie Pabst · Rule change · TB 25-09 (2025-09 Fastrack)
neutralFA class adds USF Pro 2000 car eligibility for Formula Atlantic racing.Effective 11/1/25 in FA Table 2, add the following:
#38223 from Ove Olsson · Rule change · TB 26-01 (2026-01 Fastrack)
unclearFA MZR gains alternate Noor P/N 0088-8-00 intake manifold with AT Power runners as option to Elan or Mazda Speed Elite.In FA, GCR section 9.1.1.2.d, modify as follows:
"9. Intake manifold must be unmodified Elan DP02-60-003 or Mazda Speed equivalent Elite USF2015AT, 1.882” maximum bore
diameter at throttle plates. Elan or Mazda Speed equivalent Elite intake manifold may be replaced with unmodified intake Noor
P/N 0088-8-00 with intake runners AT Power P/N 13624."
"10. Elan DP02-60-003 or Mazda Speed equivalent Elite USF2015AT intake manifold must use an A aluminum spacer must beused between the intake manifold and cylinder head castings; minimum spacer length is 2.200”."
#39302 from Reilly Harris · Rule change · TB 26-01 (2026-01 Fastrack)
fasterFA Formula 1000 motorcycle-based engine loses maximum compression ratio 14.5:1 limit.In FA Table 2, Formula 1000 spec line, change the Engine as follows:
"Motorcycle-based 4-cycle up to 1000cc, maximum compression ratio 14.5:1;. o Otherwise, current FA engine rules apply."
#39608 from Club Racing Board · Rule change · TB 26-01 (2026-01 Fastrack)
fasterFA Formula 1000 allows carbon fiber external panels, forward-facing gaps, raises floor to 125mm, adds eight 75×125mm rub blocks, expands diffuser to 110cm with 75mm radius transitions.In FA Table 2, Formula 1000 spec line, change the Notes as follows:
"Car must comply with December 2019 GCR Formula 1000 (FB) Preparation Rules, https://www.scca.com/downloads/48184-
gcr-december-2019/download, except as modified by this spec line. The prohibition of using carbon fiber in any external panels
or any panels licked by the airstream in Part 3.C of the December 2019 GCR F1000 (FB) Preparation Rules is removed, with the
exception that the car's floor pan/undertray must comply with the requirements of Part 2.D of the December 2019 GCR F1000
(FB) Preparation Rules. The prohibition of forward-facing gaps or openings in the bodywork in Part 3.I of the December 2019 GCR
F1000 (FB) Preparation Rules is removed. Part 3.D of the December 2019 GCR F1000 (FB) Preparation Rules is modified as
follows: "Between the rear of the front tire and the front of the rear tire, no point on the lower surface of the car (the surface
licked by the air stream) shall be more than 125mm above the plane determined by the reference area designated by the entrant
and on a line perpendicular to that reference plane." Part 3.D of the December 2019 GCR F1000 (FB) Preparation Rules is also
modified as follows: "A maximum of eight (8) rub blocks of maximum dimension 75mm by 125mm are allowed anywhere on the
lower surface of the chassis and may extend below the reference plane." Part 3.E of the December 2019 GCR F1000 (FB)
Preparation Rules is modified as follows: "The radius of transitions between the diffuser sides and adjacent horizontal structures
may be up to 75mm. The width of the diffuser, as measured between its sides and above any radiused transitions, may not
exceed 110cm in any lateral section." The CRB may require the use of Flat Plate Intake Restrictors at any time."
#39411 from Stephen Lamana · Rule change · TB 26-02 (2026-02 Fastrack)
fasterFA Pro Mazda: lower intake manifold now unrestricted, throttle body raised to 80mm, wing height must not exceed 99cm, bodywork width must not exceed 132cm.In FA Table 2, Pro Formula Mazda spec line, change the notes as follows:
"All current FA rules apply to areas not covered by this spec line. Apex seals unrestricted. Street port or bridge port
allowed. Unmodified OEM l Lower intake manifold required unrestricted, upper intake manifold unrestricted. Balance tube not
permitted. Fuel injection only. Maximum 70 80mm T throttle B body. The maximum height of the wing and/or
endplates shall must not exceed 99cm (38.98 inches). The overall maximum width of the bodywork behind the front
wheels shall must not exceed 132cm (51.97 inches)."
What the rules allowed changed as listed; this does not say what any particular car ran.