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BoP Lab / Michelin Raceway Road Atlanta

P2 vs SRF vs SM vs SRF3 pace at Michelin Raceway Road Atlanta

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
Reference class · the others' laps as a share of this one's at the same event, so years compare despite weather; + a class above to measure against it

Quickest here: P2 1:22.533 Lucian Pancea, Super Tour Mar 2023 qualifying · SM 1:41.798 Danny Steyn, Super Tour Mar 2021 qualifying · SRF3 1:33.550 Peyton Long, Super Tour Mar 2026 qualifying

1:251:301:351:401:4524 rule changes between Super Tour Mar 2021 and Super Tour Mar 202224 ▾16 rule changes between Super Tour Mar 2022 and Super Tour Mar 202316 ▾19 rule changes between Super Tour Mar 2023 and Super Tour Mar 202419 ▾20 rule changes between Super Tour Mar 2024 and Super Tour Mar 202520 ▾12 rule changes between Super Tour Mar 2025 and Super Tour Mar 202612 ▾P2 race best at Super Tour Mar 2021: 1:26.120 (Lucian Pancea)P2 race best at Super Tour Mar 2022: 1:23.071 (Robert Iversen)P2 race best at Super Tour Mar 2023: 1:23.804 (Lucian Pancea)P2 race best at Super Tour Mar 2024: 1:26.233 (Sherman Chao)P2 qualifying best at Super Tour Mar 2021: 1:27.406 (Lucas Mann)P2 qualifying best at Super Tour Mar 2022: 1:24.013 (Robert Iversen)P2 qualifying best at Super Tour Mar 2023: 1:22.533 (Lucian Pancea)P2 qualifying best at Super Tour Mar 2024: 1:24.228 (Lucian Pancea)SM race best at Super Tour Mar 2021: 1:42.564 (Preston Pardus)SM race best at Super Tour Mar 2022: 1:41.864 (Travis Wiley)SM race best at Super Tour Mar 2023: 1:42.553 (Charles Mactutus)SM race best at Super Tour Mar 2024: 1:42.995 (Charles Mactutus)SM race best at Super Tour Mar 2025: 1:42.625 (Sean Noonan)SM race best at Super Tour Mar 2026: 1:42.611 (Charles Mactutus)SM qualifying best at Super Tour Mar 2021: 1:41.798 (Danny Steyn)SM qualifying best at Super Tour Mar 2022: 1:42.814 (Connor Zilisch)SM qualifying best at Super Tour Mar 2023: 1:42.619 (Charles Mactutus)SM qualifying best at Super Tour Mar 2024: 1:42.620 (Danny Steyn)SM qualifying best at Super Tour Mar 2025: 1:42.848 (Sean Noonan)SM qualifying best at Super Tour Mar 2026: 1:42.324 (Skyler Cottrell)SRF3 race best at Super Tour Mar 2021: 1:34.672 (Mark Snyder)SRF3 race best at Super Tour Mar 2022: 1:33.786 (Matthew Horst)SRF3 race best at Super Tour Mar 2023: 1:34.485 (Mark Eaton)SRF3 race best at Super Tour Mar 2024: 1:34.173 (Thomas Weir)SRF3 race best at Super Tour Mar 2025: 1:33.785 (Richard Baldwin)SRF3 race best at Super Tour Mar 2026: 1:34.016 (Robeson Clay Russell)SRF3 qualifying best at Super Tour Mar 2021: 1:34.816 (Brian Schofield)SRF3 qualifying best at Super Tour Mar 2022: 1:34.135 (Charles Russell Turner)SRF3 qualifying best at Super Tour Mar 2023: 1:34.195 (Charles Russell Turner)SRF3 qualifying best at Super Tour Mar 2024: 1:33.957 (Grant Vogel)SRF3 qualifying best at Super Tour Mar 2025: 1:33.603 (Peyton Long)SRF3 qualifying best at Super Tour Mar 2026: 1:33.550 (Peyton Long)Super Tour Mar 2021Super Tour Mar2021Super Tour Mar 2022Super Tour Mar2022Super Tour Mar 2023Super Tour Mar2023Super Tour Mar 2024Super Tour Mar2024Super Tour Mar 2025Super Tour Mar2025Super Tour Mar 2026Super Tour Mar2026
P2SRFSMSRF3solid race · dashed qualifying · slower is lower
98%100%102%104%106%108%110%112%114%116%118%120%122%124%126%24 rule changes between Super Tour Mar 2021 and Super Tour Mar 202224 ▾16 rule changes between Super Tour Mar 2022 and Super Tour Mar 202316 ▾19 rule changes between Super Tour Mar 2023 and Super Tour Mar 202419 ▾20 rule changes between Super Tour Mar 2024 and Super Tour Mar 202520 ▾12 rule changes between Super Tour Mar 2025 and Super Tour Mar 202612 ▾P2 race best at Super Tour Mar 2021: 100.0% of P2's (Lucian Pancea)P2 race best at Super Tour Mar 2022: 100.0% of P2's (Robert Iversen)P2 race best at Super Tour Mar 2023: 100.0% of P2's (Lucian Pancea)P2 race best at Super Tour Mar 2024: 100.0% of P2's (Sherman Chao)P2 qualifying best at Super Tour Mar 2021: 100.0% of P2's (Lucas Mann)P2 qualifying best at Super Tour Mar 2022: 100.0% of P2's (Robert Iversen)P2 qualifying best at Super Tour Mar 2023: 100.0% of P2's (Lucian Pancea)P2 qualifying best at Super Tour Mar 2024: 100.0% of P2's (Lucian Pancea)SM race best at Super Tour Mar 2021: 119.1% of P2's (Preston Pardus)SM race best at Super Tour Mar 2022: 122.6% of P2's (Travis Wiley)SM race best at Super Tour Mar 2023: 122.4% of P2's (Charles Mactutus)SM race best at Super Tour Mar 2024: 119.4% of P2's (Charles Mactutus)SM qualifying best at Super Tour Mar 2021: 116.5% of P2's (Danny Steyn)SM qualifying best at Super Tour Mar 2022: 122.4% of P2's (Connor Zilisch)SM qualifying best at Super Tour Mar 2023: 124.3% of P2's (Charles Mactutus)SM qualifying best at Super Tour Mar 2024: 121.8% of P2's (Danny Steyn)SRF3 race best at Super Tour Mar 2021: 109.9% of P2's (Mark Snyder)SRF3 race best at Super Tour Mar 2022: 112.9% of P2's (Matthew Horst)SRF3 race best at Super Tour Mar 2023: 112.7% of P2's (Mark Eaton)SRF3 race best at Super Tour Mar 2024: 109.2% of P2's (Thomas Weir)SRF3 qualifying best at Super Tour Mar 2021: 108.5% of P2's (Brian Schofield)SRF3 qualifying best at Super Tour Mar 2022: 112.0% of P2's (Charles Russell Turner)SRF3 qualifying best at Super Tour Mar 2023: 114.1% of P2's (Charles Russell Turner)SRF3 qualifying best at Super Tour Mar 2024: 111.6% of P2's (Grant Vogel)Super Tour Mar 2021Super Tour Mar2021Super Tour Mar 2022Super Tour Mar2022Super Tour Mar 2023Super Tour Mar2023Super Tour Mar 2024Super Tour Mar2024Super Tour Mar 2025Super Tour Mar2025Super Tour Mar 2026Super Tour Mar2026
P2SRFSMSRF3solid race · dashed qualifying · each class's best lap as a share of P2's at the same event (the reference class, changeable above); 100% is level, higher is quicker
EventP2SRFSMSRF3
Qual bestRace bestTrapQual bestRace bestTrapvs P2% of P2Qual bestRace bestTrapvs P2% of P2Qual bestRace bestTrapvs P2% of P2
Super Tour Mar 2026 ST26MAR062026-03-061:42.324Skyler Cottrell · fastest of 52 · top 5 within 0.4s-0.524s (-0.51%)1:42.611Charles Mactutus · fastest of 51 · top 5 within 0.2s-0.014s (-0.01%)112.2James Newell+5.2 mph (+4.9%)1:33.550Peyton Long · fastest of 51 · top 5 within 0.3s-0.053s (-0.06%)1:34.016Robeson Clay Russell · fastest of 50 · top 5 within 0.4s+0.231s (+0.25%)129.9Grant Vogel+7.5 mph (+6.2%)
12 rule changes (SRF: 4, SM: 3, SRF3: 5)1 tyres & wheels · 1 weight · 1 wording · 9 othershowhide
  • SRF SRF3 Spark Plugs #39899other
  • SRF3 SRF3 Spark Plugs #39899other
  • SRF Add HD Oil Cooler #38979other
  • SRF3 Add HD Oil Cooler #38979other
  • SRF3 SRF Rule Updates #38853weight
  • SM SMX Data Submission - Penalties #38248other
  • SM Committee) SMX Penaly Clarification updated language #38337wording
  • SM Clarify Tire Marking Regs #38005tyres & wheels
  • SRF Driver Safety & Comfort #37966other
  • SRF Update SADEV transmission specs #37992other
  • SRF3 Driver Safety & Comfort #37966other
  • SRF3 Update SADEV transmission specs #37992other
Super Tour Mar 2025 ST25MAR072025-03-071:42.848Sean Noonan · fastest of 35 · top 5 within 0.2s+0.228s (+0.22%)1:42.625Sean Noonan · fastest of 33 · top 5 within 0.6s-0.370s (-0.36%)107.0Sean Noonan+1.8 mph (+1.7%)1:33.603Peyton Long · fastest of 40 · top 5 within 0.5s-0.354s (-0.38%)1:33.785Richard Baldwin · fastest of 40 · top 5 within 0.1s-0.388s (-0.41%)122.4Arvid Albanese+0.2 mph (+0.1%)
20 rule changes (P2: 3, SRF: 6, SM: 5, SRF3: 6)7 tyres & wheels · 3 suspension & brakes · 2 engine · 2 weight · 2 wording · 4 other · FE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.showhide
  • P2 2000 cc Pinto Engine Car Weight #37187weight
  • SM E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
  • SRF Update SRF3 Air Filter Rule #36681other
  • SRF Update SRF Brake Rotor Thickness #36687suspension & brakes
  • SRF Hoosier Tire Decal Placement #36739tyres & wheels
  • SRF3 Update SRF3 Air Filter Rule #36681other
  • SRF3 Update SRF Brake Rotor Thickness #36687suspension & brakes
  • SRF3 Hoosier Tire Decal Placement #36739tyres & wheels
  • SM SMX Camera Rule Correction #36496wording
  • SM Committee) AIM ECU Protocol #36556engine
  • SM Committee) OE versus OEM Definitons #36608other
  • SM Committee) Shifter Bushing #36611suspension & brakes
  • SRF Protest Fee Clarification #36540wordingwordingFE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.
  • SRF Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels
  • SRF3 Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels
  • SRF Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels
  • SRF3 Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels
  • SRF3 SRF3 Alternator Pulley Update In #36095weight
  • P2 CN Spec ECU #35835engine
  • P2 E&O - Correct FIA Group CN spec line notes #35900tyres & wheels
Super Tour Mar 2024 ST24MAR082024-03-081:24.228Lucian Pancea · fastest of 4 · top 4 within 5.2s+1.695s (+2.05%)1:26.233Sherman Chao · fastest of 4 · top 4 within 17.9s+2.429s (+2.90%)134.0Lucian Pancea-12.5 mph (-8.5%)1:42.620Danny Steyn · fastest of 47 · top 5 within 0.4s+0.001s (+0.00%)1:42.995Charles Mactutus · fastest of 46 · top 5 within 0.1s+0.442s (+0.43%)105.2Tyler Brown-6.9 mph (-6.2%)+16.762squal +18.392s119.4%qual 121.8%1:33.957Grant Vogel · fastest of 40 · top 5 within 0.4s-0.238s (-0.25%)1:34.173Thomas Weir · fastest of 43 · top 5 within 0.5s-0.312s (-0.33%)122.2Robeson Clay Russell-6.6 mph (-5.1%)+7.940squal +9.729s109.2%qual 111.6%
19 rule changes (P2: 7, SRF: 6, SRF3: 6)5 tyres & wheels · 4 engine · 4 suspension & brakes · 3 weight · 1 wording · 2 othershowhide
  • P2 E&O - Clarify B.1 modified engine range in AMAC spec lines #35225engine
  • P2 Replacement Engine Crankcase for 07/08 Suzuki GSX-R1000 Engines #35340engine
  • SRF Update SRF Rain / Brake Rule #34706suspension & brakes
  • SRF Update SRF Brake Light Rule v1 #34853suspension & brakes
  • SRF SRF / SRF3 Rule Updates #35268weight
  • SRF3 Update SRF Rain / Brake Rule #34706suspension & brakes
  • SRF3 Update SRF Brake Light Rule v1 #34853suspension & brakes
  • SRF3 SRF / SRF3 Rule Updates #35268weight
  • P2 Correct Table 1 for Engine Date Range Specifications #35182engine
  • SRF SRF Radiator Rule Update #34805other
  • SRF3 SRF Radiator Rule Update #34805other
  • SRF Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels
  • SRF3 Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels
  • P2 Clarify minimum side body height requirement #34143tyres & wheels
  • P2 Clarify closed cockpit single seat car allowance #34144wording
  • SRF Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
  • SRF3 Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
  • P2 Remove redundant effective date language and update engine table #34012engine
  • P2 E&O - Correct dimensional equivalents #34038weight
Super Tour Mar 2023 ST23MAR102023-03-101:22.533Lucian Pancea · fastest of 4 · top 4 within 4.2s-1.480s (-1.76%)1:23.804Lucian Pancea · fastest of 4 · top 4 within 4.6s+0.733s (+0.88%)146.5Lucian Pancea-3.5 mph (-2.4%)1:42.619Charles Mactutus · fastest of 48 · top 5 within 0.7s-0.195s (-0.19%)1:42.553Charles Mactutus · fastest of 47 · top 5 within 0.4s+0.689s (+0.68%)112.2Jonathan Neudorf-1.3 mph (-1.2%)+18.749squal +20.086s122.4%qual 124.3%1:34.195Charles Russell Turner · fastest of 36 · top 5 within 0.9s+0.060s (+0.06%)1:34.485Mark Eaton · fastest of 36 · top 5 within 0.3s+0.699s (+0.75%)128.8Derek Schofield-2.7 mph (-2.1%)+10.681squal +11.662s112.7%qual 114.1%
16 rule changes (P2: 7, SRF: 3, SM: 2, SRF3: 4)5 suspension & brakes · 4 tyres & wheels · 3 weight · 1 cars added · 1 engine · 1 wording · 1 othershowhide
  • SRF Update SRF Brake Rule #33469suspension & brakes
  • SRF3 Update SRF Brake Rule #33469suspension & brakes
  • SRF3 Update SRF Bodywork Fitment Rule #33765tyres & wheels
  • P2 Request to Classify Sebeco NP01 #33378cars added
  • P2 Radical spec line clarifications #33485weight
  • P2 E&O original class intent #33519weight
  • P2 Update Engine Table Spec Line B.1 #33608engine
  • SM BOP for NB1 and NB2 #32309weight
  • SRF SRF Tire Rule Update #32614tyres & wheels
  • SRF Brake, seal, and air filter clarifications #32670suspension & brakes
  • SRF3 SRF Tire Rule Update #32614tyres & wheels
  • SRF3 Brake, seal, and air filter clarifications #32670suspension & brakes
  • P2 E&O Clarification of Chassis Construction Requirements #32469tyres & wheels
  • P2 Clean up P2 wording #32525wording
  • P2 After Market to Aftermarket #32373other
  • SM Update GCR Section 9.1.7.3.A.1. #32217suspension & brakes
Super Tour Mar 2022 ST22MAR122022-03-121:24.013Robert Iversen · fastest of 6 · top 5 within 3.1s-3.393s (-3.88%)1:23.071Robert Iversen · fastest of 6 · top 5 within 4.0s-3.049s (-3.54%)150.1Robert Iversen+13.2 mph (+9.6%)1:42.814Connor Zilisch · fastest of 60 · top 5 within 0.3s+1.016s (+1.00%)1:41.864Travis Wiley · fastest of 60 · top 5 within 0.7s-0.700s (-0.68%)113.5Junior Brock-0.1 mph (-0.1%)+18.793squal +18.801s122.6%qual 122.4%1:34.135Charles Russell Turner · fastest of 52 · top 5 within 1.2s-0.681s (-0.72%)1:33.786Matthew Horst · fastest of 50 · top 5 within 0.2s-0.886s (-0.94%)131.5Peyton Long+4.2 mph (+3.3%)+10.715squal +10.122s112.9%qual 112.0%
24 rule changes (P2: 13, SRF: 5, SM: 1, SRF3: 5)6 engine · 5 tyres & wheels · 5 weight · 1 aero · 7 othershowhide
  • P2 Add spec line for Beasley B2 #32147weight
  • P2 E&O Table 1 spec line wing terminology #32148aero
  • P2 E&O class name #32196other
  • P2 E&O Engine section #31969engine
  • P2 E&O letter #31539 – Control Area definition #31783tyres & wheels
  • P2 BoP adjustment effective 1-1-22 #31538engine
  • P2 E&O clarification of "Control Area" definition #31539tyres & wheels
  • SRF Three Updates to SRF Rules #31523weight
  • SRF3 Three Updates to SRF Rules #31523weight
  • P2 P2 CN Engine Rebuild Clarification #31000engine
  • P2 F5 P2 Conversion #30856other
  • P2 Clarify minimum body width requirement #30859tyres & wheels
  • SRF SRF Wet Tires #30849tyres & wheels
  • SRF SADEV-SRF3 Transmission #30926other
  • SRF SRF Update Maintenance, Repairs and Seals #30961engine
  • SRF3 SRF Wet Tires #30849tyres & wheels
  • SRF3 SADEV-SRF3 Transmission #30926other
  • SRF3 SRF Update Maintenance, Repairs and Seals #30961engine
  • SRF SRF3 Alternator Pulley #30684weight
  • SRF3 SRF3 Alternator Pulley #30684weight
  • P2 E&O tonneau cover provision in cockpit opening section #30459other
  • P2 Remove effective dates in Table 1 #30468other
  • P2 E&O Maximum Valves Per Cylinder #30560engine
  • SM Updates - Obsolete Parts & BOP Parts #30438other
Super Tour Mar 2021 ST21MAR192021-03-191:27.406Lucas Mann · fastest of 4 · top 4 within 5.9s1:26.120Lucian Pancea · fastest of 3 · top 3 within 3.8s136.9Lucian Pancea1:41.798Danny Steyn · fastest of 68 · top 5 within 0.7s1:42.564Preston Pardus · fastest of 67 · top 5 within 0.2s113.6Marc Cefalo+16.444squal +14.392s119.1%qual 116.5%1:34.816Brian Schofield · fastest of 69 · top 5 within 0.5s1:34.672Mark Snyder · fastest of 68 · top 5 within 0.2s127.3Matthew Horst+8.552squal +7.410s109.9%qual 108.5%
43 earlier rule changes on record, in force before Super Tour Mar 2021 (from 2019)11 engine · 10 suspension & brakes · 5 induction · 5 weight · 4 tyres & wheels · 1 aero · 1 cars added · 1 wording · 5 othershowhide
  • P2 Add a new spec line for a 2-cycle, 3-cylinder engine up to 820cc #30272engine
  • SRF Mandatory identification: #30223engine
  • SRF3 Mandatory identification: #30223engine
  • P2 Balance of Performance adjustments effective 01-01-2021 #29822induction
  • SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes
  • SRF3 SRF Shocks, Springs and Ride Height. #29688suspension & brakes
  • SM Radiator E&O Clarifications #29294engine
  • P2 E&O clarification of P2 rear wing requirements #29205aero
  • SM Modifications to prevent failures of Rear Brake Caliper Pin #28953suspension & brakes
  • P2 Classify Elan NP01 in P2 Table 1 #28812cars added
  • SRF3 SRF Shocks #28791suspension & brakes
  • P2 SCCA Enterprises ESR / P2 engine restrictor testing #28669induction
  • SRF SRF Bump Stop Correction #27019suspension & brakes
  • SRF3 Update Bump Stop Rule #28712suspension & brakes
  • SRF3 SRF Bump Stop Correction #27019suspension & brakes
  • P2 Add ESR inlet restrictor #27869induction
  • P2 Request for Fly by Wire Rule Wording Change #28247engine
  • P2 Request for addition of BMW Engine in P2 Engine Table #27821engine
  • SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • SRF3 SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • SRF SRF Tire Warmer Rule #27622tyres & wheels
  • SRF SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF SRF / SRF3 Majors & Regional Class Updates #27723other
  • SRF3 SRF Tire Warmer Rule #27622tyres & wheels
  • SRF3 SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF3 SRF / SRF3 Majors & Regional Class Updates #27723other
  • P2 Update Engine Table Line E notes #27414engine
  • P2 Update P2 Engine Table spec lines to reflect 3/1/2019 #27254engine
  • P2 E&O Transmissions #27006tyres & wheels
  • SRF SRF Dash Windscreen Kit #27028other
  • SRF3 SRF Dash Windscreen Kit #27028other
  • P2 Request to restrict all cars #26246weight
  • SRF3 New SRF Sectional Nose Rule Addition #26914other
  • SRF3 SRF Brakes and Shock Rule Changes #26629suspension & brakes
  • P2 Change Engine Table Lines B.1 & B.5 #25777engine
  • P2 Change Line A.1 restrictor size #26429induction
  • SM Request to allow aftermarket fuel filters. #26370wording
  • SM Request 99-00 replacement Wire harnesses #25602engine
  • SM Organize and Clarify 9.1.7.C.1.o. #25913weight
  • SM Strike Tire Tread Language #26123tyres & wheels
  • P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595engine
  • P2 Change CN inlet restrictor implementation date #25816induction
  • P2 Clarify Honda K20A-FD2 parts requirement #25950weight

Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it, how many cars set a time that session and how close the top five were; a best from fewer than three cars is greyed. With two or more classes, "vs" is the gap of each class's best to the first class's at the same event. "% of P2" is the class's best as a share of P2's best at the same event (100% is level, less is quicker): weather and track condition move every class together, so this compares across years where the raw times do not. It still breaks when P2's own field changes or one session was wet and another dry. Newest event first. The coloured figure under each value is the change from the previous event that has one (green is quicker, red slower). Whole laps only, so events with different sector layouts still compare. Weather and track condition are not accounted for.