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FX 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)
AS+B-Spec+EP+FA+FC+FE2+FF+FP+FV+FX×GT1+GT2+GTX+HP+P+P2+SM+SMX+SRF3+STL+STU+T1+T2+T3+T4+Show 51 inactive classes
Series
Reference · what % is measured against, 3 eventsall classes that day, as if at an average track
Tracks · untick to narrow

Closest to the field: FX 82.3% of the field Vaughn Glace, Indianapolis Motor Speedway Runoffs 2021 race

1:401:502:002:102:205 rule changes between Runoffs 2020 and Runoffs 20215 ▾9 rule changes between Runoffs 2021 and Runoffs 20229 ▾FX race best at Runoffs 2020: 2:17.553 (Jacob Loomis)FX race best at Runoffs 2021: 1:38.833 (Vaughn Glace)FX race best at Runoffs 2022: 2:08.711 (Dimitrios Tsesmetzis)FX qualifying best at Runoffs 2020: 2:16.968 (Jacob Loomis)FX qualifying best at Runoffs 2021: 1:38.596 (Vaughn Glace)FX qualifying best at Runoffs 2022: 1:51.480 (Trevor A Russell)Road America · Runoffs 2020Runoffs2020Indianapolis Motor Speedway · Runoffs 2021Runoffs2021Virginia International Raceway · Runoffs 2022Runoffs2022
FXsolid race · dashed qualifying · slower is lowerIndianapolis Motor SpeedwayRoad AmericaVirginia International Raceway
82%83%84%85%86%5 rule changes between Runoffs 2020 and Runoffs 20215 ▾9 rule changes between Runoffs 2021 and Runoffs 20229 ▾FX race best at Runoffs 2020: 85.8% of Field's (Jacob Loomis)FX race best at Runoffs 2021: 82.3% of Field's (Vaughn Glace)FX race best at Runoffs 2022: 86.2% of Field's (Dimitrios Tsesmetzis)FX qualifying best at Runoffs 2020: 86.3% of Field's (Jacob Loomis)FX qualifying best at Runoffs 2021: 84.9% of Field's (Vaughn Glace)FX qualifying best at Runoffs 2022: 83.8% of Field's (Trevor A Russell)Road America · Runoffs 2020Runoffs2020Indianapolis Motor Speedway · Runoffs 2021Runoffs2021Virginia International Raceway · Runoffs 2022Runoffs2022
FXsolid 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 quickerIndianapolis Motor SpeedwayRoad AmericaVirginia International Raceway
EventFX
Qual best Race best Trap % of the field 
Virginia International Raceway Runoffs 20222022-09-241:51.480Trevor A Russell · fastest of 5 · top 5 within 9.7s2:08.711Dimitrios Tsesmetzis · fastest of 4 · top 4 within 6.8s137.2Trevor A Russell86.2%qual 83.8%
9 rule changes (FX: 9)4 tyres & wheels · 2 engine · 2 weight · 1 inductionshowhide
  • Pro Formula F2000/USF2000 Transmission E&O #32823weight
  • Formula Mazda Minimum Weight #33010weight
  • Formula Mazda Spec Line E&O Corrections #33011engine
  • Formula Renault 2.0 (10-17) Intake Restrictor #32745induction
  • Allow Performance Electronics PE3-8400 for USF2000 MZR #32767engine
  • FM Rule Set Clarification #31881tyres & wheels
  • E&O F4 Tires #31940tyres & wheels
  • E&O USF2000 Tube Frame #31951tyres & wheels
  • URGENT - FX- Formula Renault Tire #32058tyres & wheels
Indianapolis Motor Speedway Runoffs 20212021-09-251:38.596Vaughn Glace · fastest of 15 · top 5 within 4.1s1:38.833Vaughn Glace · fastest of 15 · top 5 within 4.3s138.6Vaughn Glace82.3%qual 84.9%
5 rule changes (FX: 5)2 cars added · 2 tyres & wheels · 1 inductionshowhide
  • Rules Adjustment #30950tyres & wheels
  • FX/FRP Tire Rule #30723tyres & wheels
  • Classify the 2000-2009 Formula Renault 2.0 / Fran-Am 2000 #30460cars added
  • Request for Car Classification to Compete in Formula X #29933cars added
  • Update specifications for FormulaSPEED cars #29674induction
Road America Runoffs 20202020-10-022:16.968Jacob Loomis · fastest of 12 · top 5 within 2.7s2:17.553Jacob Loomis · fastest of 11 · top 5 within 3.5s139.3Brad Drew85.8%qual 86.3%
6 earlier rule changes on record, in force before Runoffs 2020 (from 2020)3 cars added · 1 induction · 1 tyres & wheels · 1 othershowhide
  • Follow up to to Letter#28991 Request for FX classification #29281cars added
  • Request to be added to FX group #28991other
  • Request to classify FSV in FX #28057cars added
  • Classify FormulaSPEED in FX #28715cars added
  • Request to remove tire marking language from FM #28415tyres & wheels
  • Change to FX Table 1 #28322induction

By track

TrackEvents Typical % of the field Best Latest 
Indianapolis Motor Speedway182.3%82.3%Runoffs 202182.3%Runoffs 2021
Road America185.8%85.8%Runoffs 202085.8%Runoffs 2020
Virginia International Raceway186.2%86.2%Runoffs 202286.2%Runoffs 2022
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.