BoP Lab / Classes / FE2

FE2 vs P1 vs SMX pace at every track

Lap times across years say as much about the weather as the class. % of FE2 is each class's best lap as a share of FE2's on the same day, so the conditions drop out: 100% is level, less is quicker, and a move in it is the class getting faster or slower against the field.

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AS +B-Spec +EP +FA +FC +FE2×FF +FP +FV +FX +GT1 +GT2 +GTX +HP +P +vsP1 ×P2 +SM +vsSMX ×SRF3 +STL +STU +T1 +T2 +T3 +T4 +Show 50 inactive classes

Series Runoffs Super Tour Both

Reference · what % is measured against

Tracks · untick to narrow Auto Club Speedway Barber Motorsports Park Blackhawk Farms Raceway Buttonwillow Raceway Park Circuit of the Americas Daytona International Speedway Grattan Raceway Hallett Motor Racing Circuit Homestead-Miami Speedway Indianapolis Motor Speedway Laguna Seca Michelin Raceway Road Atlanta Mid-Ohio Sports Car Course New Jersey Motorsports Park NOLA Motorsports Park Pacific Raceways Pittsburgh International Race Complex Portland International Raceway Pueblo Motorsports Park Road America Sebring International Raceway Sonoma Raceway Thunderhill Raceway Park Virginia International Raceway Watkins Glen International Willow Springs Raceway World Wide Technology Raceway

Closest to the field: FE2 100.0% of FE2 Flinn Lazier, Sonoma Raceway Runoffs 2018 race · P1 86.4% of FE2 John Mcaleer, Virginia International Raceway Runoffs 2022 race · SMX 117.7% of FE2 Ethan Jacobs, Road America Runoffs 2024 race

% of FE2Lap times

FE2P1SMXsolid race · dashed qualifying · slower is lower

FE2P1SMXsolid race · dashed qualifying · each class's best lap as a share of FE2's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker

	Event	FE2			P1					SMX
	Event	Qual best	Race best	Trap	Qual best	Race best	Trap	vs FE2	% of FE2	Qual best	Race best	Trap	vs FE2	% of FE2
	Road America Runoffs 20262026-09-28	2:12.326Franklin Futrelle · fastest of 8 · top 5 within 1.9s-0.149s (-0.11%)	2:11.881Franklin Futrelle · fastest of 8 · top 5 within 1.6s-1.458s (-1.09%)	143.5Steve Whitston-5.5 mph (-3.7%)						2:36.472Skyler Cottrell · fastest of 21 · top 5 within 0.4s+0.240s (+0.15%)	2:36.414Cam Ebben · fastest of 21 · top 5 within 1.1s-0.677s (-0.43%)	128.4Christian Hoagland-0.6 mph (-0.5%)	+24.533squal +24.146s	118.6%qual 118.2%
3 rule changes (FE2: 1, SMX: 2)1 wording · 2 othershowhide 2026-07-01 SMX Rear Toe Link #40271other 2026-04-01 SMX Part Number Change Request #39914wording 2025-10-01 FE2 FE & FE2 Bubble Tail #38978other
	Road America Runoffs 20252025-09-29	2:12.475Franklin Futrelle · fastest of 11 · top 5 within 1.4s+0.969s (+0.74%)	2:13.339Franklin Futrelle · fastest of 10 · top 5 within 0.6s+0.591s (+0.45%)	149.0Steve Whitston+3.7 mph (+2.6%)						2:36.232Cam Ebben · fastest of 20 · top 5 within 0.2s+0.581s (+0.37%)	2:37.091Michael Tinis · fastest of 19 · top 5 within 0.3s+0.813s (+0.52%)	129.1Camden Gruber-0.4 mph (-0.3%)	+23.752squal +23.757s	117.8%qual 117.9%
6 rule changes (FE2: 1, SMX: 5)1 tyres & wheels · 1 wording · 4 othershowhide 2025-06-01 SMX SMX Data Submission - Penalties #38248other 2025-06-01 SMX SMX Penaly Clarification updated language #38337wording 2025-05-01 SMX Clarify Tire Marking Regs #38004tyres & wheels 2025-05-01 SMX SMX Data Submission Timeframe #38039other 2025-04-01 FE2 Driver Safety & Comfort #37965other 2024-12-01 SMX E&O SMX Regs 9.1.7.1.D.5.u-.w #37070other
	Road America Runoffs 20242024-10-01	2:11.506Porter Aiken · fastest of 18 · top 5 within 0.5s-1.300s (-0.98%)	2:12.748Porter Aiken · fastest of 17 · top 5 within 2.0s-0.523s (-0.39%)	145.3Porter Aiken+1.9 mph (+1.3%)	2:00.476Chip Romer · fastest of 12 · top 5 within 1.5s-0.625s (-0.52%)	2:00.418Matt Romer · fastest of 9 · top 5 within 2.1s-1.452s (-1.19%)	168.3Jason Miller+8.7 mph (+5.4%)	-12.330squal -11.030s	90.7%qual 91.6%	2:35.651Ethan Lampe · fastest of 23 · top 5 within 0.7s	2:36.278Ethan Jacobs · fastest of 22 · top 5 within 0.7s	129.5Michael Borden	+23.530squal +24.145s	117.7%qual 118.4%
10 rule changes (P1: 6, SMX: 4)3 engine · 2 induction · 2 weight · 1 suspension & brakes · 1 wording · 1 othershowhide 2024-09-01 SMX SMX Camera Rule Correction #36496wording 2024-09-01 SMX AIM ECU Protocol #36556engine 2024-09-01 SMX OE versus OEM Definitons #36608other 2024-09-01 SMX Shifter Bushing #36611suspension & brakes 2024-05-01 P1 Update GCR section 9.1.8.B.J.7 #35907engine 2024-03-01 P1 Remove redundant effective date language in GCR 9.1.8.B.J.4 #35693induction 2024-03-01 P1 Correct engine series terminology #35694engine 2024-01-01 P1 Please correct omitted punctuation #34890weight 2024-01-01 P1 Adjust restrictors and weights for Engine Table lines H and I #35229induction 2024-01-01 P1 Revise Group CN Honda K20A-FD2 Spec Line #35337weight
	Virginia International Raceway Runoffs 20232023-09-23	1:50.665Charles Russell Turner · fastest of 26 · top 5 within 2.3s-0.188s (-0.17%)	1:51.098Franklin Futrelle · fastest of 19 · top 5 within 1.4s-20.947s (-15.86%)	141.3Franklin Futrelle-0.6 mph (-0.4%)	1:42.602Todd Vanacore · fastest of 10 · top 5 within 0.9s+1.001s (+0.99%)	1:44.329Todd Vanacore · fastest of 9 · top 5 within 0.7s-9.766s (-8.56%)	158.5Jason Miller+1.2 mph (+0.8%)	-6.769squal -8.063s	93.9%qual 92.7%	2:11.435Nathan Nicholson · fastest of 18 · top 5 within 0.6s	2:12.616Noah Harmon · fastest of 16 · top 5 within 0.1s	127.8Noah Harmon	+21.518squal +20.770s	119.4%qual 118.8%
7 rule changes (P1: 7)3 induction · 2 aero · 2 tyres & wheelsshowhide 2023-07-01 P1 SIR Testing #34354induction 2023-07-01 P1 E&O Single Inlet Restrictor abbreviation, etc. #34369induction 2023-07-01 P1 E&O Clean up ducted air provision #34410tyres & wheels 2023-04-01 P1 E&O - Correct dimensional equivalents #34018tyres & wheels 2023-03-01 P1 November 2022 Rules Clarification for Suspension Covers #33615aero 2022-11-01 P1 Clarify body panel coverage of suspension components #33318aero 2022-10-01 P1 E&O clarification regarding forced induction #33123induction
	Virginia International Raceway Runoffs 20222022-09-24	1:50.853Charles Russell Turner · fastest of 25 · top 5 within 1.1s-0.209s (-0.19%)	2:12.045Jason Conzo · fastest of 22 · top 5 within 1.8s+19.891s (+17.74%)	141.9Eric Cruz-0.6 mph (-0.5%)	1:41.601Todd Slusher · fastest of 9 · top 5 within 2.3s-1.073s (-1.05%)	1:54.095John Mcaleer · fastest of 9 · top 5 within 1.4s+10.597s (+10.24%)	157.2Jason Miller+1.3 mph (+0.8%)	-17.950squal -9.252s	86.4%qual 91.7%
3 rule changes (P1: 3)1 induction · 1 tyres & wheels · 1 weightshowhide 2022-08-01 P1 Clarify authorization to use flat plate intake restrictor #32964induction 2022-05-01 P1 E&O Clarification of Bodywork Rules #32468tyres & wheels 2022-01-01 P1 Displacement & Weight Change Request for 2-Cycle 6 Cylinder #31609weight
	Indianapolis Motor Speedway Runoffs 20212021-09-25	1:36.395Max Grau · fastest of 28 · top 5 within 0.7s	1:36.655Max Grau · fastest of 28 · top 5 within 0.7s	146.2Gray Fowler	1:29.011Lee Alexander · fastest of 13 · top 5 within 2.5s-1.783s (-1.96%)	1:29.225Lee Alexander · fastest of 12 · top 5 within 3.5s-2.274s (-2.49%)	160.1Jason Miller	-7.430squal -7.384s	92.3%qual 92.3%
11 rule changes (P1: 11)5 engine · 4 weight · 1 induction · 1 othershowhide 2021-09-01 P1 Move 2000cc and 2300cc engine options to individual spec lines #31012engine 2021-09-01 P1 E&O Spec Line B notes #31095weight 2021-08-01 P1 Add 1355cc spec line #30890weight 2021-05-01 P1 E&O tonneau cover provision in cockpit opening section #30458other 2021-05-01 P1 Update Spec Line B Notes #30498weight 2021-05-01 P1 Update Spec Lines C and G notes #30499weight 2021-05-01 P1 E&O Maximum Valves Per Cylinder #30559engine 2021-04-01 P1 Clean up Spec Line A notes section #30424engine 2021-04-01 P1 Clean up Spec Line H notes section #30425engine 2021-03-01 P1 DP02 Sealed 2ltr Engine Option #30038engine 2021-03-01 P1 E&O restrictor terminology #30285induction
	Road America Runoffs 20202020-10-02	2:12.806Scott Rettich · fastest of 25 · top 5 within 0.6s	2:13.271Owen McAllister · fastest of 23 · top 5 within 0.7s	143.4Owen McAllister	2:01.101James French · fastest of 18 · top 5 within 1.1s	2:01.870James French · fastest of 17 · top 5 within 1.8s	159.7David Locke	-11.401squal -11.705s	91.4%qual 91.2%
6 rule changes (FE2: 2, P1: 4)3 weight · 2 induction · 1 wordingshowhide 2020-09-01 FE2 FE/FE2 Oil Cooler #29293wording 2020-05-01 P1 E&O minimum weights and intake manifolds #28731induction 2020-02-01 P1 Extend date for removing sealed DP02-spec 2.0L option #28046weight 2020-01-01 P1 Remove sealed DP02-spec 2.0 MZR spec #26753induction 2020-01-01 P1 Update Revised Spec Line F #27745weight 2019-12-01 FE2 FE / FE2 Update Rules #27624weight
	Virginia International Raceway Runoffs 20192019-10-05	1:51.062Liam Snyder · fastest of 20 · top 5 within 1.3s	1:52.154Liam Snyder · fastest of 19 · top 5 within 0.7s	142.6Robert Vanman	1:42.674Todd Slusher · fastest of 14 · top 5 within 1.5s	1:43.498Todd Slusher · fastest of 13 · top 5 within 1.0s	155.9Jim Devenport	-8.656squal -8.388s	92.3%qual 92.4%
14 rule changes (P1: 14)5 engine · 3 induction · 1 removed · 1 tyres & wheels · 2 wording · 2 othershowhide 2019-08-01 P1 E&O Transmissions #27098other 2019-07-01 P1 E&O Transmissions #27005tyres & wheels 2019-07-01 P1 Move minimum height provision to #27031removed 2019-07-01 P1 Remove duplicative fender louver provision #27033induction 2019-05-31 P1 Missing word E&O #26919other 2019-05-31 P1 E&O correction to GCR 9.1.8.C.C. #26927wording 2019-05-01 P1 Clean up reference to engine table #26648engine 2019-05-01 P1 Remove redundant spec line #26692engine 2019-04-01 P1 Clean Up Engine Table Language #26590engine 2019-03-01 P1 Move single-seat closed cockpit provision to #26376wording 2019-02-01 P1 Correct errors in GCR section 9.1.8.C.J #26144engine 2019-01-01 P1 Remove redundant inlet restrictor provisions #25877induction 2019-01-01 P1 Clarify Honda K20A-FD2 parts requirement #25949engine 2019-01-01 P1 Correct GCR section 9.1.8.C.J errors #25966induction
	Sonoma Raceway Runoffs 20182018-10-10	1:35.040Flinn Lazier · fastest of 9 · top 5 within 1.5s	1:35.563Flinn Lazier · fastest of 9 · top 5 within 1.7s	126.8Scott Rettich	1:27.714Todd Slusher · fastest of 19 · top 5 within 2.1s	1:28.786Perry Richardson · fastest of 19 · top 5 within 0.9s	144.0Johnnie Crean	-6.777squal -7.326s	92.9%qual 92.3%
No rule changes on record between these events
	Indianapolis Motor Speedway Runoffs 20172017-09-25				1:30.794Jim Devenport · fastest of 19 · top 5 within 2.8s	1:31.499Jim Devenport · fastest of 16 · top 5 within 2.2s
No rule changes on record between these events
	Mid-Ohio Sports Car Course Runoffs 20162016-09-19				1:17.308James Devenport · fastest of 14 · top 5 within 2.7s	1:19.407Gianpaolo Ciancimino · fastest of 13 · top 5 within 1.8s
No rule changes on record between these events
	Daytona International Speedway Runoffs 20152015-09-21				1:49.219Jim Downing · fastest of 9 · top 5 within 2.2s	1:49.792Gianpaolo Ciancimino · fastest of 10 · top 5 within 1.7s

By track

Track	Events	Typical % of FE2	Best	Latest
Road America	4	100.0%	100.0%Runoffs 2020	100.0%Runoffs 2026
Virginia International Raceway	3	100.0%	100.0%Runoffs 2019	100.0%Runoffs 2023
Indianapolis Motor Speedway	2	100.0%1 of 2 with FE2	100.0%Runoffs 2021	100.0%Runoffs 2021
Daytona International Speedway	1	0 of 1 with FE2
Mid-Ohio Sports Car Course	1	0 of 1 with FE2
Sonoma Raceway	1	100.0%	100.0%Runoffs 2018	100.0%Runoffs 2018

About this data

Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of FE2's best on the same day: the weather and the day cancel out, so one figure compares across years where lap times cannot; a class that suits one track more than another still reads differently there. It still moves when the yardstick's own balance changes or its field thins, and an event the yardstick did not run has no point. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.