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F5 pace at every track

Lap times across years say as much about the weather as the class. % of SM is each class's best lap as a share of SM'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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Series
Reference class · the yardstick the % column and chart are measured against
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Quickest here: F5 1:28.528 Calvin Stewart, Runoffs 2016 qualifying

1:402:002:201 rule change between Runoffs 2018 and Runoffs 20191 ▾6 rule changes between Runoffs 2019 and Runoffs 20206 ▾3 rule changes between Runoffs 2020 and Runoffs 20213 ▾6 rule changes between Runoffs 2021 and Runoffs 20226 ▾F5 race best at Runoffs 2015: 2:03.298 (Matthew Strand)F5 race best at Runoffs 2016: 1:29.853 (Steven Thompson)F5 race best at Runoffs 2017: 1:42.860 (Wiley Clinton McMahan)F5 race best at Runoffs 2018: 1:42.491 (David Lapham)F5 race best at Runoffs 2019: 1:57.572 (Wiley Mcmahan)F5 race best at Runoffs 2020: 2:21.391 (James Weida)F5 race best at Runoffs 2021: 1:43.140 (Sven de Vries)F5 race best at Runoffs 2022: 2:21.862 (Sven de Vries)F5 qualifying best at Runoffs 2015: 2:01.824 (W. Clint McMahan)F5 qualifying best at Runoffs 2016: 1:28.528 (Calvin Stewart)F5 qualifying best at Runoffs 2017: 1:43.136 (Wiley Clinton McMahan)F5 qualifying best at Runoffs 2018: 1:41.807 (Jeff Jorgenson)F5 qualifying best at Runoffs 2019: 1:57.361 (Wiley Mcmahan)F5 qualifying best at Runoffs 2020: 2:20.954 (Calvin Stewart)F5 qualifying best at Runoffs 2021: 1:42.619 (Ryan Mayfield)F5 qualifying best at Runoffs 2022: 1:57.689 (James Weida)Daytona International Speedway · Runoffs 2015Runoffs2015Mid-Ohio Sports Car Course · Runoffs 2016Runoffs2016Indianapolis Motor Speedway · Runoffs 2017Runoffs2017Sonoma Raceway · Runoffs 2018Runoffs2018Virginia International Raceway · Runoffs 2019Runoffs2019Road America · Runoffs 2020Runoffs2020Indianapolis Motor Speedway · Runoffs 2021Runoffs2021Virginia International Raceway · Runoffs 2022Runoffs2022
F5solid race · dashed qualifying · slower is lowerIndianapolis Motor SpeedwayVirginia International RacewayDaytona International SpeedwayMid-Ohio Sports Car CourseRoad AmericaSonoma Raceway
85%90%95%100%1 rule change between Runoffs 2018 and Runoffs 20191 ▾6 rule changes between Runoffs 2019 and Runoffs 20206 ▾3 rule changes between Runoffs 2020 and Runoffs 20213 ▾6 rule changes between Runoffs 2021 and Runoffs 20226 ▾F5 race best at Runoffs 2015: 85.6% of SM's (Matthew Strand)F5 race best at Runoffs 2016: 89.2% of SM's (Steven Thompson)F5 race best at Runoffs 2017: 86.4% of SM's (Wiley Clinton McMahan)F5 race best at Runoffs 2018: 88.9% of SM's (David Lapham)F5 race best at Runoffs 2019: 86.2% of SM's (Wiley Mcmahan)F5 race best at Runoffs 2020: 86.3% of SM's (James Weida)F5 race best at Runoffs 2021: 86.8% of SM's (Sven de Vries)F5 race best at Runoffs 2022: 102.0% of SM's (Sven de Vries)F5 qualifying best at Runoffs 2015: 87.9% of SM's (W. Clint McMahan)F5 qualifying best at Runoffs 2016: 88.1% of SM's (Calvin Stewart)F5 qualifying best at Runoffs 2017: 87.2% of SM's (Wiley Clinton McMahan)F5 qualifying best at Runoffs 2018: 89.0% of SM's (Jeff Jorgenson)F5 qualifying best at Runoffs 2019: 87.2% of SM's (Wiley Mcmahan)F5 qualifying best at Runoffs 2020: 86.9% of SM's (Calvin Stewart)F5 qualifying best at Runoffs 2021: 87.2% of SM's (Ryan Mayfield)F5 qualifying best at Runoffs 2022: 87.4% of SM's (James Weida)Daytona International Speedway · Runoffs 2015Runoffs2015Mid-Ohio Sports Car Course · Runoffs 2016Runoffs2016Indianapolis Motor Speedway · Runoffs 2017Runoffs2017Sonoma Raceway · Runoffs 2018Runoffs2018Virginia International Raceway · Runoffs 2019Runoffs2019Road America · Runoffs 2020Runoffs2020Indianapolis Motor Speedway · Runoffs 2021Runoffs2021Virginia International Raceway · Runoffs 2022Runoffs2022
F5solid race · dashed qualifying · each class's best lap as a share of SM's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quickerIndianapolis Motor SpeedwayVirginia International RacewayDaytona International SpeedwayMid-Ohio Sports Car CourseRoad AmericaSonoma Raceway
EventF5
Qual bestRace bestTrap% of SM
Virginia International Raceway Runoffs 20222022-09-241:57.689James Weida · fastest of 11 · top 5 within 3.9s+0.328s (+0.28%)2:21.862Sven de Vries · fastest of 10 · top 5 within 14.3s+24.290s (+20.66%)142.9Calvin Stewart+0.1 mph (+0.1%)102.0%qual 87.4%
6 rule changes (F5: 6)1 engine · 3 wording · 2 other · F500 Rotax 493 and 593 intake boots: removed Moto Tassinari V3124-873B-2 from 493/593 non-HO allowance, added Moto Tassinari V3120-794A-2 option for non-HO. · F500 Rotax engines now permit Ingi Tech Sparker ignition DCP-CDI-P2 as alternate ECU. · F500 clarifies stepped diameter exhaust headers prohibited except at cylinder head flange area. · F500 Rotax 593 intake boot options clarified; oil injection pump removal now permitted. · F500 Majors and Runoffs cars must install AIM part #X47KPFSOLO2R0 data box mount for Solo or Solo 2. · F5 cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs.showhide
  • Intake Boots Correction #33028wordingwordingF500 Rotax 493 and 593 intake boots: removed Moto Tassinari V3124-873B-2 from 493/593 non-HO allowance, added Moto Tassinari V3120-794A-2 option for non-HO.
  • Ensure availability of ECU for Rotax engines #32695engineadded · engineF500 Rotax engines now permit Ingi Tech Sparker ignition DCP-CDI-P2 as alternate ECU.
  • Clarify stepped exhaust header references #32743wordingwordingF500 clarifies stepped diameter exhaust headers prohibited except at cylinder head flange area.
  • 593 carb boot availability and oil pump clarification #32527wordingwordingF500 Rotax 593 intake boot options clarified; oil injection pump removal now permitted.
  • E&O class name #32194otheraddedF500 Majors and Runoffs cars must install AIM part #X47KPFSOLO2R0 data box mount for Solo or Solo 2.
  • Data Box Mounting Plate #31638otheraddedF5 cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs.
Indianapolis Motor Speedway Runoffs 20212021-09-251:42.619Ryan Mayfield · fastest of 22 · top 5 within 1.6s-0.517s (-0.50%)1:43.140Sven de Vries · fastest of 20 · top 5 within 1.7s+0.280s (+0.27%)144.4James Weida86.8%qual 87.2%
3 rule changes (F5: 3)1 cars added · 2 wording · F5 clarifies mechanical shifting only; throttle-cut and flat-shifter devices permitted if driver retains full control. · F5 single-seat open-wheel cars: rigid suspension becomes limited suspension in class definition. · F500 Rotax 593 HO engine now permitted; 875 lbs minimum weight, MA0242SP1020A or MA0242SP1063A restrictor, specific intake boots and piston required.showhide
  • Clarify allowable assisted shifting systems #30871wordingwordingF5 clarifies mechanical shifting only; throttle-cut and flat-shifter devices permitted if driver retains full control.
  • Request to correct terminology #30976wordingwordingF5 single-seat open-wheel cars: rigid suspension becomes limited suspension in class definition.
  • Request to Allow Rotax 593 HO Engine #30712cars addedaddedF500 Rotax 593 HO engine now permitted; 875 lbs minimum weight, MA0242SP1020A or MA0242SP1063A restrictor, specific intake boots and piston required.
Road America Runoffs 20202020-10-022:20.954Calvin Stewart · fastest of 16 · top 5 within 1.8s2:21.391James Weida · fastest of 14 · top 5 within 1.5s143.2Aaron Ellis86.3%qual 86.9%
6 rule changes (F5: 6)2 engine · 1 induction · 3 wording · F500 Suzuki GSXR600 engine years extended from 2003-2013 to 2003-2019. · F5 request to adjust external jetting device cockpit control denied; no rule change made. · F5 driver adjustable carburettor mixture: refer to separate Fastrack letter #28359 for ruling. · F5 cockpit adjustment request response published in Fastrack letter 28359. · F500 Honda CBR600RR, Suzuki GSXR600, Yamaha R6 restrictor reduced to 28mm from 29mm.showhide
  • Request to Update Suzuki Engine Years for F500 #29453engineadded · engineF500 Suzuki GSXR600 engine years extended from 2003-2013 to 2003-2019.
  • Request for Cockpit Adjustment of External Jetting Devices #28359wordingunclearF5 request to adjust external jetting device cockpit control denied; no rule change made.
  • Two Stroke Motors (reply to #28359 WDYT) #28816engine
  • Re letter requesting driver adjustable carb mixture #28840wordingunclearF5 driver adjustable carburettor mixture: refer to separate Fastrack letter #28359 for ruling.
  • #28359 WDYT Request for Cockpit Adjustment #28875wordingunclearF5 cockpit adjustment request response published in Fastrack letter 28359.
  • Change 600cc restrictor size #27883inductionslower · inductionF500 Honda CBR600RR, Suzuki GSXR600, Yamaha R6 restrictor reduced to 28mm from 29mm.
Virginia International Raceway Runoffs 20192019-10-051:57.361Wiley Mcmahan · fastest of 15 · top 5 within 3.8s1:57.572Wiley Mcmahan · fastest of 15 · top 5 within 4.0s142.8Eric McRee86.2%qual 87.2%
1 rule change (F5: 1)1 weight · F500 Honda CBR600RR, Suzuki GSXR600, and Yamaha R6 minimum weights increase to 900 lbs.showhide
  • Request for Weight Increase for Motorcycle Powered Cars #27214weight +25 lbsslower · weightF500 Honda CBR600RR, Suzuki GSXR600, and Yamaha R6 minimum weights increase to 900 lbs.
Sonoma Raceway Runoffs 20182018-10-101:41.807Jeff Jorgenson · fastest of 5 · top 5 within 6.6s1:42.491David Lapham · fastest of 5 · top 5 within 9.5s113.3David Lapham88.9%qual 89.0%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:43.136Wiley Clinton McMahan · fastest of 38 · top 5 within 1.4s1:42.860Wiley Clinton McMahan · fastest of 37 · top 5 within 1.6s86.4%qual 87.2%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:28.528Calvin Stewart · fastest of 14 · top 5 within 3.9s1:29.853Steven Thompson · fastest of 12 · top 5 within 4.5s89.2%qual 88.1%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:01.824W. Clint McMahan · fastest of 16 · top 5 within 3.0s2:03.298Matthew Strand · fastest of 15 · top 5 within 4.9s85.6%qual 87.9%

By track

TrackEventsTypical % of SMBestLatest
Indianapolis Motor Speedway286.4%86.4%Runoffs 201786.8%Runoffs 2021
Virginia International Raceway286.2%86.2%Runoffs 2019102.0%Runoffs 2022
Daytona International Speedway185.6%85.6%Runoffs 201585.6%Runoffs 2015
Mid-Ohio Sports Car Course189.2%89.2%Runoffs 201689.2%Runoffs 2016
Road America186.3%86.3%Runoffs 202086.3%Runoffs 2020
Sonoma Raceway188.9%88.9%Runoffs 201888.9%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 SM's best on the same day: the weather, the track and its configuration cancel out, so one figure compares across tracks and years where lap times cannot. 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.