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BoP Lab / Classes / FE

FE vs FM vs FB vs P pace at every track

Lap times across years say as much about the weather as the class. % of FE is each class's best lap as a share of FE'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.

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB-SpecEPF600FAvsFB×FCFE×FE2FFvsFM×FPFVFXGT1GT2GTXHPvsP×P2SMSMXSRF3STLSTUT1T2T3T4Show 179 inactive classes
Series
Reference · what % is measured against
Tracks · untick to narrow

Closest to the field: FE 100.0% of FE Scott Rettich, Daytona International Speedway Runoffs 2015 race · FM 97.1% of FE Jacob Loomis, Mid-Ohio Sports Car Course Runoffs 2016 race · FB 89.5% of FE Jeremy Hill, Mid-Ohio Sports Car Course Runoffs 2016 race

1:201:301:401:502:005 rule changes between Runoffs 2018 and Runoffs 20195 ▾30 rule changes between Runoffs 2019 and Runoffs 202530 ▾3 rule changes between Runoffs 2025 and Runoffs 20263 ▾FE race best at Runoffs 2015: 1:59.040 (Scott Rettich)FE race best at Runoffs 2016: 1:30.563 (Hanna Zellers)FE race best at Runoffs 2017: 1:39.726 (Elliot Finlayson)FE race best at Runoffs 2018: 1:38.504 (Lee Rackley)FE race best at Runoffs 2019: 1:55.648 (Mark Snyder)FE qualifying best at Runoffs 2015: 1:57.824 (Scott Rettich)FE qualifying best at Runoffs 2016: 1:27.636 (Scott Rettich)FE qualifying best at Runoffs 2017: 1:39.177 (Elliot Finlayson)FE qualifying best at Runoffs 2018: 1:37.517 (Mark Snyder)FE qualifying best at Runoffs 2019: 1:54.710 (Mark Snyder)FM race best at Runoffs 2015: 1:58.029 (Joseph Burton-Harris)FM race best at Runoffs 2016: 1:27.922 (Jacob Loomis)FM race best at Runoffs 2017: 1:41.146 (Jarret Voorhies)FM race best at Runoffs 2018: 1:37.909 (Bryce Cornet)Off the chart: FM race best at Runoffs 2019: 2:15.816 (Bryce Cornet)FM qualifying best at Runoffs 2015: 1:57.804 (Joseph Burton-Harris)FM qualifying best at Runoffs 2016: 1:26.043 (Jacob Loomis)FM qualifying best at Runoffs 2017: 1:41.231 (Jarret Voorhies)FM qualifying best at Runoffs 2018: 1:37.598 (Bryce Cornet)FM qualifying best at Runoffs 2019: 1:55.124 (Bryce Cornet)FB race best at Runoffs 2015: 1:51.616 (J R Osborne)FB race best at Runoffs 2016: 1:21.015 (Jeremy Hill)FB race best at Runoffs 2017: 1:33.702 (Alex Mayer)FB race best at Runoffs 2018: 1:31.189 (J R Osborne)FB race best at Runoffs 2019: 1:57.688 (Pete Frost)FB qualifying best at Runoffs 2015: 1:50.711 (J R Osborne)FB qualifying best at Runoffs 2016: 1:19.886 (Alex Mayer)FB qualifying best at Runoffs 2017: 1:33.746 (Gary Hickman)FB qualifying best at Runoffs 2018: 1:28.612 (J R Osborne)FB qualifying best at Runoffs 2019: 1:54.469 (Pete Frost)P race best at Runoffs 2025: 2:02.122 (Bart Wolf)P race best at Runoffs 2026: 2:03.283 (Lawrence Loshak)P qualifying best at Runoffs 2025: 2:01.180 (Lee Alexander)P qualifying best at Runoffs 2026: 2:02.281 (Perry Richardson)Daytona International Speedway · Runoffs 2015Runoffs2015Mid-Ohio Sports Car Course · Runoffs 2016Runoffs2016Indianapolis Motor Speedway · Runoffs 2017Runoffs2017Sonoma Raceway · Runoffs 2018Runoffs2018Virginia International Raceway · Runoffs 2019Runoffs2019Road America · Runoffs 2025Runoffs2025Road America · Runoffs 2026Runoffs2026
FEFMFBPsolid race · dashed qualifying · slower is lower
90%92%94%96%98%100%102%5 rule changes between Runoffs 2018 and Runoffs 20195 ▾30 rule changes between Runoffs 2019 and Runoffs 202530 ▾3 rule changes between Runoffs 2025 and Runoffs 20263 ▾FE race best at Runoffs 2015: 100.0% of FE's (Scott Rettich)FE race best at Runoffs 2016: 100.0% of FE's (Hanna Zellers)FE race best at Runoffs 2017: 100.0% of FE's (Elliot Finlayson)FE race best at Runoffs 2018: 100.0% of FE's (Lee Rackley)FE race best at Runoffs 2019: 100.0% of FE's (Mark Snyder)FE qualifying best at Runoffs 2015: 100.0% of FE's (Scott Rettich)FE qualifying best at Runoffs 2016: 100.0% of FE's (Scott Rettich)FE qualifying best at Runoffs 2017: 100.0% of FE's (Elliot Finlayson)FE qualifying best at Runoffs 2018: 100.0% of FE's (Mark Snyder)FE qualifying best at Runoffs 2019: 100.0% of FE's (Mark Snyder)FM race best at Runoffs 2015: 99.2% of FE's (Joseph Burton-Harris)FM race best at Runoffs 2016: 97.1% of FE's (Jacob Loomis)FM race best at Runoffs 2017: 101.4% of FE's (Jarret Voorhies)FM race best at Runoffs 2018: 99.4% of FE's (Bryce Cornet)Off the chart: FM race best at Runoffs 2019: 117.4% of FE's (Bryce Cornet)FM qualifying best at Runoffs 2015: 100.0% of FE's (Joseph Burton-Harris)FM qualifying best at Runoffs 2016: 98.2% of FE's (Jacob Loomis)FM qualifying best at Runoffs 2017: 102.1% of FE's (Jarret Voorhies)FM qualifying best at Runoffs 2018: 100.1% of FE's (Bryce Cornet)FM qualifying best at Runoffs 2019: 100.4% of FE's (Bryce Cornet)FB race best at Runoffs 2015: 93.8% of FE's (J R Osborne)Off the chart: FB race best at Runoffs 2016: 89.5% of FE's (Jeremy Hill)FB race best at Runoffs 2017: 94.0% of FE's (Alex Mayer)FB race best at Runoffs 2018: 92.6% of FE's (J R Osborne)FB race best at Runoffs 2019: 101.8% of FE's (Pete Frost)FB qualifying best at Runoffs 2015: 94.0% of FE's (J R Osborne)FB qualifying best at Runoffs 2016: 91.2% of FE's (Alex Mayer)FB qualifying best at Runoffs 2017: 94.5% of FE's (Gary Hickman)FB qualifying best at Runoffs 2018: 90.9% of FE's (J R Osborne)FB qualifying best at Runoffs 2019: 99.8% of FE's (Pete Frost)Daytona International Speedway · Runoffs 2015Runoffs2015Mid-Ohio Sports Car Course · Runoffs 2016Runoffs2016Indianapolis Motor Speedway · Runoffs 2017Runoffs2017Sonoma Raceway · Runoffs 2018Runoffs2018Virginia International Raceway · Runoffs 2019Runoffs2019Road America · Runoffs 2025Runoffs2025Road America · Runoffs 2026Runoffs2026
FEFMFBPsolid race · dashed qualifying · each class's best lap as a share of FE's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventFEFMFBP
Qual best Race best Trap Qual best Race best Trap vs FE % of FE Qual best Race best Trap vs FE % of FE Qual best Race best Trap vs FE % of FE 
Road America Runoffs 20262026-09-282:02.281Perry Richardson · fastest of 10 · top 5 within 1.3s+1.101s (+0.91%)2:03.283Lawrence Loshak · fastest of 10 · top 5 within 0.8s+1.161s (+0.95%)165.6Jason Miller+0.7 mph (+0.4%)
3 rule changes (FE: 2, P: 1)1 engine · 1 suspension & brakes · 1 othershowhide
  • FE FE & FE2 Rule Updates #39484engine
  • P Request to Continue to Allow Carbon Brakes #39476suspension & brakes
  • FE FE & FE2 Bubble Tail #38978other
Road America Runoffs 20252025-09-292:01.180Lee Alexander · fastest of 14 · top 5 within 1.5s2:02.122Bart Wolf · fastest of 13 · top 5 within 2.1s165.0Jason Miller
30 rule changes (FE: 23, P: 7)5 tyres & wheels · 5 weight · 4 suspension & brakes · 3 aero · 3 engine · 2 induction · 2 wording · 6 othershowhide
  • FE FE & FE2 Rule Updates #38901weight
  • P 13B Rotary Engine Rules Change Request #38856induction
  • P Add Radical Cup series Radical SR3 spec line to Table 1 #38916other
  • P Clarify spec line cars language #38943weight
  • P RM 25-05 - Prototype Engine Table A, 2 Cycle Restrictor Change #38929induction
  • P Add missing punctuation marks #38150weight
  • P Correct text in engine table notes #37606engine
  • P Update Prototype class designation #37653tyres & wheels
  • FE Brake Line to A-Arm Covers #37110suspension & brakes
  • FE Protest Fee Clarification #36540wording
  • FE Update on Letter 36620 with new Hoosier Contingency Decal Info #36625tyres & wheels
  • FE Hoosier Tire Decal Placement #36435tyres & wheels
  • FE Update FE Rain Light Rule #34707other
  • FE FE/FE2 rule update #35269other
  • FE Update FE SADEV Transmission Rule #33883other
  • FE Brake bias adjuster clarification #33084suspension & brakes
  • FE FE Front and Rear Wing Update & Clarification #33089aero
  • FE Engine Heat Shield & Insulation #33019engine
  • FE Update FE/FE2 Tire Rule #32613tyres & wheels
  • FE Master cylinder clarification #32669engine
  • FE Two FE2 Rule Updates #31524other
  • FE FE Tire Rule Changes #30754tyres & wheels
  • FE Radiator Screens Clarification #30792wording
  • FE FE Radiator Screens #30575other
  • FE FE / FE2 Spring Updates #29689suspension & brakes
  • FE FE Gurney Flap Spec Update #29445aero
  • FE FE Gurney flap wicker clarification #28885aero
  • FE FE spring rule update changed to November 1, 2020 #28814suspension & brakes
  • FE Request for FE / FE2 preparation rules update #27722weight
  • FE FE / FE2 Update Rules #27624weight
Virginia International Raceway Runoffs 20192019-10-051:54.710Mark Snyder · fastest of 9 · top 5 within 1.3s1:55.648Mark Snyder · fastest of 9 · top 5 within 0.9s135.5James Libecco1:55.124Bryce Cornet · fastest of 8 · top 5 within 2.3s2:15.816Bryce Cornet · fastest of 8 · top 5 within 4.9s135.7Bryce Cornet+20.168squal +0.414s117.4%qual 100.4%1:54.469Pete Frost · only car1:57.688Pete Frost · only car145.9Pete Frost+2.040squal -0.241s101.8%qual 99.8%
5 rule changes (FE: 5)3 tyres & wheels · 1 suspension & brakes · 1 othershowhide
  • FE FE Wet Tire E&O #27365tyres & wheels
  • FE FE Tire Update #27029tyres & wheels
  • FE FE Anti-Roll Bar Clarification #26912suspension & brakes
  • FE FE / FE2 Updated Bubble Tail Rule #26913other
  • FE Request to Update Hoosier Rain Tire Part Number for the FE cars #26235tyres & wheels
Sonoma Raceway Runoffs 20182018-10-101:37.517Mark Snyder · fastest of 10 · top 5 within 1.4s1:38.504Lee Rackley · fastest of 10 · top 5 within 0.8s124.7Quinten Nelson1:37.598Bryce Cornet · fastest of 13 · top 5 within 0.9s1:37.909Bryce Cornet · fastest of 12 · top 5 within 1.3s124.1Melvin David Kemper Jr-0.595squal +0.081s99.4%qual 100.1%1:28.612J R Osborne · fastest of 7 · top 5 within 3.3s1:31.189J R Osborne · fastest of 7 · top 5 within 3.7s140.5J R Osborne-7.315squal -8.905s92.6%qual 90.9%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:39.177Elliot Finlayson · fastest of 35 · top 5 within 1.3s1:39.726Elliot Finlayson · fastest of 35 · top 5 within 0.8s1:41.231Jarret Voorhies · fastest of 16 · top 5 within 1.7s1:41.146Jarret Voorhies · fastest of 16 · top 5 within 1.2s+1.420squal +2.054s101.4%qual 102.1%1:33.746Gary Hickman · fastest of 18 · top 5 within 3.3s1:33.702Alex Mayer · fastest of 17 · top 5 within 3.0s-6.024squal -5.431s94.0%qual 94.5%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:27.636Scott Rettich · fastest of 9 · top 5 within 1.7s1:30.563Hanna Zellers · fastest of 9 · top 5 within 2.2s1:26.043Jacob Loomis · fastest of 8 · top 5 within 3.1s1:27.922Jacob Loomis · fastest of 8 · top 5 within 2.7s-2.641squal -1.593s97.1%qual 98.2%1:19.886Alex Mayer · fastest of 10 · top 5 within 1.5s1:21.015Jeremy Hill · fastest of 10 · top 5 within 1.2s-9.548squal -7.750s89.5%qual 91.2%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-211:57.824Scott Rettich · fastest of 16 · top 5 within 1.0s1:59.040Scott Rettich · fastest of 16 · top 5 within 1.3s1:57.804Joseph Burton-Harris · fastest of 10 · top 5 within 2.3s1:58.029Joseph Burton-Harris · fastest of 10 · top 5 within 1.7s-1.011squal -0.020s99.2%qual 100.0%1:50.711J R Osborne · fastest of 20 · top 5 within 1.1s1:51.616J R Osborne · fastest of 19 · top 5 within 2.1s-7.424squal -7.113s93.8%qual 94.0%

By track

TrackEvents Typical % of FE Best Latest 
Road America20 of 2 with FE
Daytona International Speedway1100.0%100.0%Runoffs 2015100.0%Runoffs 2015
Indianapolis Motor Speedway1100.0%100.0%Runoffs 2017100.0%Runoffs 2017
Mid-Ohio Sports Car Course1100.0%100.0%Runoffs 2016100.0%Runoffs 2016
Sonoma Raceway1100.0%100.0%Runoffs 2018100.0%Runoffs 2018
Virginia International Raceway1100.0%100.0%Runoffs 2019100.0%Runoffs 2019
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 FE'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.