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SRF3 pace at every track

Lap times across years say as much about the weather as the class. % of the field is each class's best lap as a share of the field's on the same day (every class that ran that day but the ones shown, each scaled by its usual pace against SM and averaged, with each shown class's own track character taken out, so one figure reads the same across years and tracks), 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)
Series
Reference · what % is measured against, 12 eventsall classes that day, as if at an average track
Tracks · untick to narrow

Closest to the field: SRF3 90.2% of the field John Black, Indianapolis Motor Speedway Runoffs 2021 race

1:402:002:203 rule changes between Runoffs 2018 and Runoffs 20193 ▾7 rule changes between Runoffs 2019 and Runoffs 20207 ▾6 rule changes between Runoffs 2020 and Runoffs 20216 ▾3 rule changes between Runoffs 2021 and Runoffs 20223 ▾4 rule changes between Runoffs 2022 and Runoffs 20234 ▾10 rule changes between Runoffs 2023 and Runoffs 202410 ▾3 rule changes between Runoffs 2024 and Runoffs 20253 ▾2 rule changes between Runoffs 2025 and Runoffs 20262 ▾SRF3 race best at Runoffs 2015: 2:10.215 (Chad Galloway)SRF3 race best at Runoffs 2016: 1:34.947 (Cliff White)SRF3 race best at Runoffs 2017: 1:49.782 (Tray Ayres)SRF3 race best at Runoffs 2018: 1:47.053 (TJ Acker)SRF3 race best at Runoffs 2019: 2:04.755 (Bobby Sak)SRF3 race best at Runoffs 2020: 2:31.038 (Justin Hille)SRF3 race best at Runoffs 2021: 1:50.095 (John Black)SRF3 race best at Runoffs 2022: 2:22.066 (Franklin Futrelle)SRF3 race best at Runoffs 2023: 2:04.911 (David Ogburn)SRF3 race best at Runoffs 2024: 2:28.129 (S Sandy Satullo III)SRF3 race best at Runoffs 2025: 2:29.839 (Morgan Burkhard)SRF3 race best at Runoffs 2026: 2:29.257 (Peyton Long)SRF3 qualifying best at Runoffs 2015: 2:08.557 (Kerry Jacobsen)SRF3 qualifying best at Runoffs 2016: 1:34.363 (John Black)SRF3 qualifying best at Runoffs 2017: 1:49.824 (John Black)SRF3 qualifying best at Runoffs 2018: 1:46.117 (Robeson Clay Russell)SRF3 qualifying best at Runoffs 2019: 2:04.624 (Brian Schofield)SRF3 qualifying best at Runoffs 2020: 2:29.786 (TJ Acker)SRF3 qualifying best at Runoffs 2021: 1:49.520 (Franklin Futrelle)SRF3 qualifying best at Runoffs 2022: 2:03.716 (Franklin Futrelle)SRF3 qualifying best at Runoffs 2023: 2:03.842 (Morgan Burkhard)SRF3 qualifying best at Runoffs 2024: 2:27.773 (Denny Stripling)SRF3 qualifying best at Runoffs 2025: 2:28.226 (Bobby Sak)SRF3 qualifying best at Runoffs 2026: 2:27.443 (Tyler Stephens)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
SRF3solid race · dashed qualifying · slower is lowerRoad AmericaVirginia International RacewayIndianapolis Motor SpeedwayDaytona International SpeedwayMid-Ohio Sports Car CourseSonoma Raceway
91%91.5%92%92.5%93%93.5%94%3 rule changes between Runoffs 2018 and Runoffs 20193 ▾7 rule changes between Runoffs 2019 and Runoffs 20207 ▾6 rule changes between Runoffs 2020 and Runoffs 20216 ▾3 rule changes between Runoffs 2021 and Runoffs 20223 ▾4 rule changes between Runoffs 2022 and Runoffs 20234 ▾10 rule changes between Runoffs 2023 and Runoffs 202410 ▾3 rule changes between Runoffs 2024 and Runoffs 20253 ▾2 rule changes between Runoffs 2025 and Runoffs 20262 ▾SRF3 race best at Runoffs 2015: 93.6% of Field's (Chad Galloway)SRF3 race best at Runoffs 2016: 93.5% of Field's (Cliff White)SRF3 race best at Runoffs 2017: 92.0% of Field's (Tray Ayres)SRF3 race best at Runoffs 2018: 91.3% of Field's (TJ Acker)SRF3 race best at Runoffs 2019: 91.2% of Field's (Bobby Sak)SRF3 race best at Runoffs 2020: 93.1% of Field's (Justin Hille)Off the chart: SRF3 race best at Runoffs 2021: 90.2% of Field's (John Black)Off the chart: SRF3 race best at Runoffs 2022: 95.2% of Field's (Franklin Futrelle)SRF3 race best at Runoffs 2023: 92.6% of Field's (David Ogburn)SRF3 race best at Runoffs 2024: 92.4% of Field's (S Sandy Satullo III)SRF3 race best at Runoffs 2025: 92.8% of Field's (Morgan Burkhard)SRF3 race best at Runoffs 2026: 92.9% of Field's (Peyton Long)SRF3 qualifying best at Runoffs 2015: 93.3% of Field's (Kerry Jacobsen)SRF3 qualifying best at Runoffs 2016: 94.1% of Field's (John Black)SRF3 qualifying best at Runoffs 2017: 92.8% of Field's (John Black)SRF3 qualifying best at Runoffs 2018: 94.1% of Field's (Robeson Clay Russell)SRF3 qualifying best at Runoffs 2019: 93.6% of Field's (Brian Schofield)SRF3 qualifying best at Runoffs 2020: 93.2% of Field's (TJ Acker)SRF3 qualifying best at Runoffs 2021: 92.7% of Field's (Franklin Futrelle)SRF3 qualifying best at Runoffs 2022: 93.0% of Field's (Franklin Futrelle)SRF3 qualifying best at Runoffs 2023: 92.6% of Field's (Morgan Burkhard)SRF3 qualifying best at Runoffs 2024: 92.7% of Field's (Denny Stripling)SRF3 qualifying best at Runoffs 2025: 92.6% of Field's (Bobby Sak)SRF3 qualifying best at Runoffs 2026: 91.9% of Field's (Tyler Stephens)Daytona International Speedway · Runoffs 2015R2015Mid-Ohio Sports Car Course · Runoffs 2016R2016Indianapolis Motor Speedway · Runoffs 2017R2017Sonoma Raceway · Runoffs 2018R2018Virginia International Raceway · Runoffs 2019R2019Road America · Runoffs 2020R2020Indianapolis Motor Speedway · Runoffs 2021R2021Virginia International Raceway · Runoffs 2022R2022Virginia International Raceway · Runoffs 2023R2023Road America · Runoffs 2024R2024Road America · Runoffs 2025R2025Road America · Runoffs 2026R2026
SRF3solid race · dashed qualifying · each class's best lap as a share of the field's at the same event (the field index, changeable above); 100% is level, less is quicker, so up the chart is quickerRoad AmericaVirginia International RacewayIndianapolis Motor SpeedwayDaytona International SpeedwayMid-Ohio Sports Car CourseSonoma Raceway
EventSRF3
Qual best Race best Trap % of the field 
Road America Runoffs 20262026-09-282:27.443Tyler Stephens · fastest of 44 · top 5 within 0.3s-0.783s (-0.53%)2:29.257Peyton Long · fastest of 42 · top 5 within 0.3s-0.582s (-0.39%)134.1Bobby Sak+0.4 mph (+0.3%)92.9%qual 91.9%
2 rule changes (SRF3: 2)2 othershowhide
  • SRF3 Spark Plugs #39899other
  • Add HD Oil Cooler #38979other
Road America Runoffs 20252025-09-292:28.226Bobby Sak · fastest of 43 · top 5 within 0.6s+0.453s (+0.31%)2:29.839Morgan Burkhard · fastest of 42 · top 5 within 0.3s+1.710s (+1.15%)133.7Bobby Sak-1.5 mph (-1.1%)92.8%qual 92.6%
3 rule changes (SRF3: 3)1 weight · 2 othershowhide
  • SRF Rule Updates #38853weight
  • Driver Safety & Comfort #37966other
  • Update SADEV transmission specs #37992other
Road America Runoffs 20242024-10-012:27.773Denny Stripling · fastest of 57 · top 5 within 0.3s-2.013s (-1.34%)2:28.129S Sandy Satullo III · fastest of 52 · top 5 within 0.7s-2.909s (-1.93%)135.2Denny Stripling+3.4 mph (+2.6%)92.4%qual 92.7%
10 rule changes (SRF3: 10)3 suspension & brakes · 3 tyres & wheels · 2 weight · 2 othershowhide
  • Update SRF3 Air Filter Rule #36681other
  • Update SRF Brake Rotor Thickness #36687suspension & brakes
  • Hoosier Tire Decal Placement #36739tyres & wheels
  • Update to Letter 36619 with new Hoosier Contingency Decal Info #36624tyres & wheels
  • Update Rain Tire Rule and Hoosier Decal Placement #36436tyres & wheels
  • SRF3 Alternator Pulley Update In #36095weight
  • Update SRF Rain / Brake Rule #34706suspension & brakes
  • Update SRF Brake Light Rule v1 #34853suspension & brakes
  • SRF / SRF3 Rule Updates #35268weight
  • SRF Radiator Rule Update #34805other
Virginia International Raceway Runoffs 20232023-09-232:03.842Morgan Burkhard · fastest of 40 · top 5 within 0.2s+0.126s (+0.10%)2:04.911David Ogburn · fastest of 39 · top 5 within 0.3s-17.155s (-12.08%)134.5Bobby Sak+0.1 mph (+0.0%)92.6%qual 92.6%
4 rule changes (SRF3: 4)3 tyres & wheels · 1 suspension & brakesshowhide
  • Hoosier SRF Wet Front Tire Rule Update #34189tyres & wheels
  • Update SRF Front W2 Rain Tire Part Number #34118tyres & wheels
  • Update SRF Brake Rule #33469suspension & brakes
  • Update SRF Bodywork Fitment Rule #33765tyres & wheels
Virginia International Raceway Runoffs 20222022-09-242:03.716Franklin Futrelle · fastest of 44 · top 5 within 0.6s-0.908s (-0.73%)2:22.066Franklin Futrelle · fastest of 40 · top 5 within 1.2s+17.311s (+13.88%)134.5David Ogburn+2.1 mph (+1.6%)95.2%qual 93.0%
3 rule changes (SRF3: 3)1 suspension & brakes · 1 tyres & wheels · 1 weightshowhide
  • SRF Tire Rule Update #32614tyres & wheels
  • Brake, seal, and air filter clarifications #32670suspension & brakes
  • Three Updates to SRF Rules #31523weight
Indianapolis Motor Speedway Runoffs 20212021-09-251:49.520Franklin Futrelle · fastest of 84 · top 5 within 0.5s-0.304s (-0.28%)1:50.095John Black · fastest of 82 · top 5 within 0.2s+0.313s (+0.29%)132.1Matthew Horst90.2%qual 92.7%
6 rule changes (SRF3: 6)2 engine · 1 suspension & brakes · 1 tyres & wheels · 1 weight · 1 othershowhide
  • SRF Wet Tires #30849tyres & wheels
  • SADEV-SRF3 Transmission #30926other
  • SRF Update Maintenance, Repairs and Seals #30961engine
  • SRF3 Alternator Pulley #30684weight
  • Mandatory identification: #30223engine
  • SRF Shocks, Springs and Ride Height. #29688suspension & brakes
Road America Runoffs 20202020-10-022:29.786TJ Acker · fastest of 59 · top 5 within 0.5s2:31.038Justin Hille · fastest of 55 · top 5 within 0.2s131.9Charles Russell Turner93.1%qual 93.2%
7 rule changes (SRF3: 7)4 suspension & brakes · 1 tyres & wheels · 1 weight · 1 othershowhide
  • SRF Shocks #28791suspension & brakes
  • Update Bump Stop Rule #28712suspension & brakes
  • SRF Bump Stop Correction #27019suspension & brakes
  • SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • SRF Tire Warmer Rule #27622tyres & wheels
  • SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF / SRF3 Majors & Regional Class Updates #27723other
Virginia International Raceway Runoffs 20192019-10-052:04.624Brian Schofield · fastest of 54 · top 5 within 0.6s2:04.755Bobby Sak · fastest of 53 · top 5 within 0.3s132.4Bobby Sak91.2%qual 93.6%
3 rule changes (SRF3: 3)1 suspension & brakes · 2 othershowhide
  • SRF Dash Windscreen Kit #27028other
  • New SRF Sectional Nose Rule Addition #26914other
  • SRF Brakes and Shock Rule Changes #26629suspension & brakes
Sonoma Raceway Runoffs 20182018-10-101:46.117Robeson Clay Russell · fastest of 36 · top 5 within 0.5s1:47.053TJ Acker · fastest of 35 · top 5 within 0.2s110.2Steve Fogg91.3%qual 94.1%
No rule changes on record between these events
Indianapolis Motor Speedway Runoffs 20172017-09-251:49.824John Black · fastest of 101 · top 5 within 0.5s1:49.782Tray Ayres · fastest of 94 · top 5 within 0.4s92.0%qual 92.8%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:34.363John Black · fastest of 41 · top 5 within 0.5s1:34.947Cliff White · fastest of 39 · top 5 within 0.3s93.5%qual 94.1%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:08.557Kerry Jacobsen · fastest of 29 · top 5 within 1.1s2:10.215Chad Galloway · fastest of 29 · top 5 within 0.3s93.6%qual 93.3%

By track

TrackEvents Typical % of the field Best Latest 
Road America492.8%92.4%Runoffs 202492.9%Runoffs 2026
Virginia International Raceway392.6%91.2%Runoffs 201992.6%Runoffs 2023
Indianapolis Motor Speedway290.2%90.2%Runoffs 202190.2%Runoffs 2021
Daytona International Speedway193.6%93.6%Runoffs 201593.6%Runoffs 2015
Mid-Ohio Sports Car Course193.5%93.5%Runoffs 201693.5%Runoffs 2016
Sonoma Raceway191.3%91.3%Runoffs 201891.3%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 the field's best on the same day (every class that ran that day but the ones shown, each scaled by its usual pace against SM and averaged, with each shown class's own track character taken out, so one figure reads the same across years and tracks): the weather and the day cancel out, so one figure compares across years where lap times cannot, and across tracks too, since the class's own character at each track is taken out. A track with only one or two events on record is corrected less, since there is less to go on. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.