BoP Lab / Buttonwillow Raceway Park
| Pos | Car | Driver | Class | # | Best lap | Best theoretical lap | Best qual lap | Best race lap | Best trap speed | Best S1 | Best S2 | Best S3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mazda MX-5 | Oscar Jackson | T4 | 161, 161x | 1:58.339 B-Q1 | 1:58.339 | 1:58.339 B-Q1 | 1:59.922 B-R1 | 105.5 B-Q1 | 32.394 B-Q1 | 34.071 B-Q1 | 51.874 B-Q1 |
| 2 | Toyota FRS | Izzy Sanchez | T4 | 78 | 2:01.157 A-R1 | 2:00.448 | 2:01.678 A-Q2 | 2:01.157 A-R1 | 135.5 A-Q2 | 32.955 B-P | 34.751 A-R1 | 52.742 B-P |
| 3 | Scion FR-S | Tony Kiratsous | T4 | 35, 36 | 2:01.843 B-Q1 | 2:01.786 | 2:01.843 B-Q1 | 2:03.865 A-R2 | 133.6 A-R2 | 32.895 B-Q1 | 34.958 B-Q1 | 53.933 B-Q1 |
| 4 | Mazda Miata | Kristina Etherington | T4 | 96 | 2:03.007 A-R2 | 2:02.646 | 2:03.241 A-Q2 | 2:03.007 A-R2 | 128.1 A-Q2 | 33.464 A-Q2 | 35.459 A-R1 | 53.723 A-R2 |
| 5 | Porsche Boxster | Lynne Griffiths | T4 | 31 | 2:05.833 B-Q1 | 2:05.614 | 2:05.833 B-Q1 | 2:07.226 B-R1 | 122.0 A-Q1 | 33.699 B-R1 | 36.036 B-Q1 | 55.879 B-Q1 |
| 6 | Mazda RX-8 | Steven Kiratsous | T4 | 7 | 2:05.858 B-R2 | 2:04.886 | 2:06.604 B-Q2 | 2:05.858 B-R2 | 105.7 B-R2 | 33.416 B-R2 | 35.585 B-R2 | 55.885 B-R2 |
| 7 | Mazda Miata | Kayla Etherington | T4 | 16 | 2:07.618 A-Q2 | 2:07.257 | 2:07.618 A-Q2 | 2:08.317 A-R2 | 124.3 A-Q2 | 34.878 A-R2 | 36.704 A-Q2 | 55.675 A-Q2 |
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; 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 ">" (with ">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 | Best lap | Best qual | Best race | Best trap | Best S1 | Best S2 | Best S3 |
|---|---|---|---|---|---|---|---|---|---|
| Mazda MX-5 | T4 | 1 | 1:58.339Oscar Jackson | 1:58.339Oscar Jackson | 1:59.922Oscar Jackson | 105.5Oscar Jackson | 32.394Oscar Jackson | 34.071Oscar Jackson | 51.874Oscar Jackson |
| Toyota FRS | T4 | 1 | 2:01.157Izzy Sanchez | 2:01.678Izzy Sanchez | 2:01.157Izzy Sanchez | 135.5Izzy Sanchez | 32.955Izzy Sanchez | 34.751Izzy Sanchez | 52.742Izzy Sanchez |
| Scion FR-S | T4 | 1 | 2:01.843Tony Kiratsous | 2:01.843Tony Kiratsous | 2:03.865Tony Kiratsous | 133.6Tony Kiratsous | 32.895Tony Kiratsous | 34.958Tony Kiratsous | 53.933Tony Kiratsous |
| Mazda Miata | T4 | 2 | 2:03.007Kristina Etherington | 2:03.241Kristina Etherington | 2:03.007Kristina Etherington | 128.1Kristina Etherington | 33.464Kristina Etherington | 35.459Kristina Etherington | 53.723Kristina Etherington |
| Porsche Boxster | T4 | 1 | 2:05.833Lynne Griffiths | 2:05.833Lynne Griffiths | 2:07.226Lynne Griffiths | 122.0Lynne Griffiths | 33.699Lynne Griffiths | 36.036Lynne Griffiths | 55.879Lynne Griffiths |
| Mazda RX-8 | T4 | 1 | 2:05.858Steven Kiratsous | 2:06.604Steven Kiratsous | 2:05.858Steven Kiratsous | 105.7Steven Kiratsous | 33.416Steven Kiratsous | 35.585Steven Kiratsous | 55.885Steven Kiratsous |
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.
#38041 from David Mead · Rule change · TB 25-05 (2025-05 Fastrack)
In T4 Spec Lines, Ford Mustang V6 (05-14), add to Notes the following:
"GT 8.8 rear axle assembly allowed. 3.45 or 3.55 final drive ratio allowed. 7.5 rear axle assembly with 3.45:1 final drive allowed."
#38058 from Scotty B White · Rule change · TB 25-05 (2025-05 Fastrack)
In T4 Spec Lines, Ford Mustang V6 (05-14), add to Notes as follows:
"OEM style rear deck spoiler similar to Laguna/CS packages permitted.”
#38059 from Scotty B White · Rule change · TB 25-06 (2025-06 Fastrack)
In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows:
Final Drive: "3.45 or 3.31"
"Weight: "3400 3300"
#38216 from Benjamin Bunk · Rule change · TB 25-06 (2025-06 Fastrack)
In T4 Spec Lines, Scion FR-S Solo Spec Coupe (13-16), change Notes as follows:
"Any 200TW 225/45/17 or 215/45/17 DOT tire permitted."
In T4 Spec Lines, Subaru BRZ Solo® Spec Coupe (13-16), change Notes as follows:
"Any 200TW 225/45/17 or 215/45/17 DOT tire permitted."
Applies to Scion FR-S on this page: Tony Kiratsous
#38439 from Derrick Ambrose · Rule change · TB 25-07 (2025-07 Fastrack)
In GCR, Section 9.1.9.2, Touring car eligibility, change as follows:
"Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances
permitted. In addition T2-T4 cars may race one class up in touring classes above their specification line class as long as they are a
legal T2-T4 car and conform to their specification line allowances as classified. Cars conforming to B-Spec or C-Spec rules are
permitted to compete in Touring 4."
#38451 from Terry Hanushek · Rule change · TB 25-08 (2025-08 Fastrack)
In T2-T4 Spec Lines, change Table Header as follows:
"T2 ET"
#38966 from Trenton Kramer · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, Mini Cooper S R53 (02-06), change Gear Ratios as follows:
"12.79, 7.79, 5.65, 4.62, 3.83, 3.13 or overall- 11.42, 7.18, 5.39, 4.40, 3.65, 2.96"
#38987 from Tim Little · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, classify Chevrolet Cobalt SS, Sport Coupe (06-10) as follows:
A specification table follows in the original; it is not shown here.
#39080 from Patrick Morgan · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, classify Mercedes C230 Kompressor (2002-2005) as follows:
A specification table follows in the original; it is not shown here.
#39166 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T3 Spec Lines, Mazda MX-5 Miata (16-18), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
#39168 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Wheel Size (in.) as follows:
"17 x 7.5"
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
#39170 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must remain
stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from moving
action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including
Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars
allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02,
0000-02-5804-01). Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs
#0000-04-9700-08, springs up to 500lb front and 300lb rear allowed. Mazda tower brace 0000-04-5626 allowed. Mazda header
0000-06-5410 allowed."
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Retractable hardtop option permitted
but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the
OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports).
29mm (f) 16mm (r) sway bars allowed. Up to 500lb front and 300lb rear springs allowed. Mazda Motorsports Header part
#0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed. 3rd and 4th gear may be replaced with the following parts-
(0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5."
In T3 Spec Lines, Mazda MX-5 Miata (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Header permitted. Cold air intake
permitted. Front strut brace permitted. Front and rear sway bars permitted up to 35mm, Springs 800 front and 800 Rear max
permitted. Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette including Mazda hardtop part
#0000-07-5902- ND and part #0000-07-5901 (discontinued DG Motorsports top). If a hardtop is used, latches shall be replaced
with positive fasteners. Retractable hardtop option permitted but must be disabled from moving action and positively fastened.
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, change Notes as follows:
"Shoulder harness installation must conform to FIA mounting specifications that are approved for this vehicle per section 6.2 FIA
article 253, safety equipment. Must meet all ND2 MX-5 Global Cup rules. Any OEM or aftermarket hardtop is permitted that
retains the OEM roof silhouette, including Mazda hardtop Mazda hardtop part #0000-07-5902-ND and #0000-07-5902-ND part#0000- 07-5901 (discontinued DG Motorsports). If a hardtop is used, latches shall be replaced with positive fasteners. OBD2
requirement does not apply. Ballast box may be removed. ND2s with sequential gearbox allowed +100 lbs.
Applies to Mazda MX-5 on this page: Oscar Jackson
Applies to Mazda Miata on this page: Kristina Etherington, Kayla Etherington
#39251 from Touring Committee · Rule change · TB 25-11 (2025-11 Fastrack)
In T4 Spec Lines, Acura RSX/ RSX Type-S (02-06), change Restrictor as follows:
"55mm FPR"
In T4 Spec Lines, Acura TSX (2004-2008), change Restrictor as follows:
"47mm FPR 52mm FPR"
In T4 Spec Lines, BMW Z4 2.5L (03-05) , change Weight as follows:
"3050 2950"
In T4 Spec, BMW 320i (14-15), remove this spec line in its entirety.
In T4 Spec Lines, BMW 323 (98-00), change as follows:
Tire size: "225 245"
Weight: "3250 3150"
In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows:
Restrictor: "50mm 43mm"
Weight: "3300 3400"
In T4 Spec Lines, Honda Civic Si (06-11), change Restrictor as follows:
"55mm"
In T4 Spec Lines, Honda Civic Si (12-15), change as follows:
Restrictor: "47mm 52mm
Notes: "Transmission and Differential must be stock."
In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), change as follows:
Weight: "2550 2500"
Notes: "Factory bolt-in roll bar/cross member may be removed to facilitate roll cage installation. MSR option permitted.
Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front spring mount PT#-0000-
04-5259, front springs #0000-04-9700-08, rear spring mount PT#-0000-04-5258, rear springs #0000- 04-9400-07, helper springs
#0000-04-HLPR-EB (optional), Swaybar kit – PT#-0000-04-5306-EB that includes (front sway bar kit PT#0000-04-5306-FT, rear
sway bar kit PT#-0000-04-5306-RR), offset front camber bushing PT#- 0000-04-5407-NC. Mazda Motorsports cold air intake part
#0000-06-5150-KT allowed. Mazda Motorsport RX8 rear Hub Conversion kit part number 0000-04-5811-KT allowed, RX8 front
hubs PT# F189-33-04X allowed. Allow Mazda header part numbers 0000-06-5407 or 0000-06-5407-NC. Any OEM or aftermarket
hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop and part #0000-07-5901-CC. Aftermarket
power steering reservoir is allowed. Mazda Transmission kit part # 0000-02-5700. Mazda Motorsports LSD #32655 permitted
without penalty. Any other non-OEM limited slip differential allowed with +50 lbs. weight penalty. Front spoiler permitted
(NF51-V4-900F). Transmission kit # 0000-02-57
In T4 Spec Lines, Pontiac Solstice / Saturn Sky (06-09), change as follows:
Weight: "2800 2700"
Brakes: "(F) 296 315 Vented Disc max (R) 278 Solid Disc"
Notes: "GM calipers #22720705, and #25900764 permitted"
In T4 Spec Lines, Scion FRS/10 series (13-16), change Weight as follows:
"2925 2875"
In T4 Spec Lines, Subaru BRZ/ BRZ Limited (13-16), change Weight as follows:
"2925 2875"
In T4 Spec Lines, Subaru BRZ (17-21), change Weight as follows:
"3000 2950"
In T4 Spec Lines, Toyota 86, GT (17-21), change Weight as follows:
"3000 2950"
SCCA Runoffs
Applies to Mazda MX-5 on this page: Oscar Jackson
#39285 from Preston Obremski · Rule change · TB 25-12 (2025-12 Fastrack)
In T4 Spec Lines, classify Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) as follows:
A specification table follows in the original; it is not shown here.
#39370 from Aaron Stehly · Rule change · TB 26-01 (2026-01 Fastrack)
In GCR, Section 9.1.9.2.D.9.d, add the following:
"8. Under-dash electronics including computers, modules and fuse boxes may be relocated so they can be easily accessed after
roll cage installation."
#39503 from David Mead · Rule change · TB 26-01 (2026-01 Fastrack)
In GCR, Section 9.1.9.2.D.6.a.6., change as follows:
"In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a
maximum diameter of 360mm.
In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm.
T4- Performance alternative 1-piece rotors are permitted but rotors must meet the sizes listed in the spec line. Spec lines
showing alternate brake kits are also permitted to use 1-piece performance alternative rotors of the same size."
#39230 from Tim Myers · Rule change · TB 26-02 (2026-02 Fastrack)
In T4 Spec Lines, remove Ford Mustang V6 (05-14) in its entirety.
#39489 from Scotty B White · Rule change · TB 26-02 (2026-02 Fastrack)
In T4 Spec Lines, Ford Mustang V6 (05-10), change as follows:
Tire: "245 255"
Notes: "ABS (option code 552) allowed. FR3 Handling Pack #M-2007-FR3V6 allowed (kit does not need to be run in its entirety).
The kit includes: Dampers M-18000-A, Lowering Springs M-5300-N, Sway Bars M- 5490-C, Strut Tower Brace M-20201-F. Ford
Positraction LSD part #M-4204-C75 is allowed. Any springs max F: 500 and R: 400 permitted. Any sway bar up to F: 35mm and R:
28mm permitted. Aftermarket Shocks conforming to T4 rules allowed. Panhard bar, part # BAR-M-4264-A permitted, or any pan
hard bar permitted must be set at same length as a stock bar, center mounting hole to center mounting hole +/- 0.25 inch. An
alternative steel drive shaft is permitted; this drive shaft is otherwise unrestricted, but no modifications to other components
are permitted to facilitate its installation. An Aluminum driveshaft is allowed. Any LSD permitted. Ford brake kit M-2300-D
allowed. Aftermarket header allowed. GT 8.8 rear axle assembly allowed. 3.45 or 3.55 Alternate final drive ratio allowed. 7.5
rear axle assembly with 3.45:1 final drive allowed. Cold Air Intake allowed. Koni part numbers 8741-1494SPORT (front) and
8241-1240SPORT (rear). Spec clutch #SF661 and flywheel #SF66A permitted. 14” Brembo Brake Kit#M-2300-S permitted."
#39607 from David Mead · Rule change · TB 26-02 (2026-02 Fastrack)
In GCR, Section 9.1.9.D.5.a.1., change as follows:
"T2-T4: A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be
modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings,
eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting
plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the
unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates
(strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On
other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric
bushings. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toeangle. Adjustable toe links are permitted. They are allowed to have performance alternative bushings and spherical bearings.
They may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the
specific examples listed in the class rules or vehicle spec line."
What the rules allowed changed as listed; this does not say what any particular car ran.