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
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
Lap
Qual
Race
Trap
S1
S2
S3
Elan DP02
P
1
1:18.214Todd Vanacore
1:18.214Todd Vanacore
1:19.339Todd Vanacore
148.2Todd Vanacore
29.174Todd Vanacore
28.584Todd Vanacore
20.410Todd Vanacore
Storh WF-1
P
1
1:26.667Gary Crook
1:27.348Gary Crook
1:26.667Gary Crook
135.4Gary Crook
33.483Gary Crook
30.343Gary Crook
22.222Gary Crook
Stohr WF1
P
1
1:28.909Wade Richardson
1:29.696Wade Richardson
1:28.909Wade Richardson
141.6Wade Richardson
33.869Wade Richardson
0.675Wade Richardson
22.663Wade Richardson
Stohr 032
P
1
1:30.141William B Niemeyer Jr
1:30.141William B Niemeyer Jr
1:31.216William B Niemeyer Jr
130.8William B Niemeyer Jr
34.864William B Niemeyer Jr
31.328William B Niemeyer Jr
23.194William B Niemeyer Jr
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
Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta 2025-03-07 to 2026-03-06
P Add missing punctuation marks
#38150 from Club Racing Board · Rule change · TB 25-05 (2025-05 Fastrack)
neutralClass P adds clarification notes on restrictor requirements, throttle bodies, Mazda 12A engine spec, and P2 auto-based engine rules.
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)
slowerPrototype Engine Table A 2-cycle restrictor reduces from 40mm to 38mm venturi size.
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)
unclearP class 13B rotary engine restrictor changes to 40mm SIR fuel injection or 41.5mm venturi carburetor.
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)
neutralPrototype class adds Radical SR3 spec line to Table 1 effective 9/1/25.
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)
neutralPrototype P2 cars may now run P2 spec or modified Prototype spec in Prototype class; clarified language and added Radical Cup series table.
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.
neutralPrototype carbon-carbon and carbon-ceramic brake rotors now permitted instead of prohibited.
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.