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
S1 SF → IM1
S2 IM1 → IM2
S3 IM2 → SF
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
Best lap
Best qual
Best race
Best trap
Best S1
Best S2
Best S3
Elan DP02
P
2
1:44.952Todd Vanacore
1:44.967Todd Vanacore
1:44.952Todd Vanacore
150.9Todd Vanacore
36.720Todd Vanacore
39.548Todd Vanacore
28.002Todd Vanacore
Critter CSR1
P
1
1:49.449Todd Parks
1:50.206Todd Parks
1:49.449Todd Parks
152.0Todd Parks
38.530Todd Parks
40.918Todd Parks
29.743Todd Parks
Stohr WF1
P
1
1:56.485Michael Moulton
1:56.485Michael Moulton
147.9Michael Moulton
42.139Michael Moulton
42.984Michael Moulton
31.362Michael Moulton
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
North Carolina 2025 → Spring Sprints 2026 2025-04-04 to 2026-04-03
P Add missing punctuation marks
#38150 from Club Racing Board · Rule change · TB 25-05 (2025-05 Fastrack)
In P Engine Table, Spec Line D notes, add the following: "No restrictor required at 1150 lbs. minimum weight." In P Engine Table, Spec Line G notes, add the following: "Group CN non-composite chassis with Honda K20A-FD2 may use unrestricted individual throttle bodies at 1500 lbs. minimum weight." In P Table 1, Beasley B2 spec line notes, add the following: "Engine must be Mazda 12A rotary with 40.5mm venturi. Car must comply with all other Prototype requirements." In P Table 1, P2 cars built to 2000cc auto-based specification spec line notes, add the following:
Show 3 more lines
"Car must comply with all other P2 rules applicable to cars using stock production-based four-cylinder automotive engines. Note: Competitors are also free to modify their cars to comply with the general Prototype rules and Engine Table Spec Line H instead."
P RM 25-05 - Prototype Engine Table A, 2 Cycle Restrictor Change
#38929 from Club Racing Board · Rule change · TB 25-09 (2025-09 Fastrack)
Effective 8/1/25 in Prototype Engine Table, Spec Line A, change the restrictor as follows: "40mm 38mm Restricted Venturi Size"
P 13B Rotary Engine Rules Change Request
#38856 from Jason Vinkemulder · Rule change · TB 25-09 (2025-09 Fastrack)
Effective 9/1/25 in Prototype Engine Table, Spec Line K, change the restrictor as follows: "40mm SIR with fuel injection or 41.5mm venturi with carburetor"
P Add Radical Cup series Radical SR3 spec line to Table 1
#38916 from Club Racing Board · Rule change · TB 25-09 (2025-09 Fastrack)
Effective 9/1/25 in Prototype Table 1 (Spec Line Cars), add the following:
P Clarify spec line cars language
#38943 from Club Racing Board · Rule change · TB 25-09 (2025-09 Fastrack)
Effective 9/1/25, in Prototype, GCR section 9.1.8.B.K, change as follows: "P2 cars may compete in either the Prototype class or the P2 class but must participate in the Prototype class to the extent necessary to qualify for an invitation to the Runoffs in Prototype. P2 cars may be modified to comply with the general Prototype rules and Prototype Engine Table or may continue to run in P2 specification in the Prototype class as permitted in Table 1 below." Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
In Prototype, GCR section 9.1.8.B.F.2, change as follows: "Brake calipers may be ferrous or aluminum alloy. Effective 1/1/2026, carbon-carbon and carbon-ceramic brake rotors are prohibited and rotors must be ferrous. Brake rotor material is unrestricted."
What the rules allowed changed as listed; this does not say what any particular car ran.