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BoP Lab / Classes / F6

F6 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
Tracks · untick to narrow

Quickest here: F6 1:57.437 Calvin Stewart, Runoffs 2023 qualifying

1:552:002:052:102:152:20F6 race best at Runoffs 2023: 1:58.816 (Calvin Stewart)F6 race best at Runoffs 2024: 2:18.840 (James Weida)F6 race best at Runoffs 2026: 2:20.255 (James Weida)F6 qualifying best at Runoffs 2023: 1:57.437 (Calvin Stewart)F6 qualifying best at Runoffs 2024: 2:19.106 (Calvin Stewart)F6 qualifying best at Runoffs 2026: 2:18.489 (Calvin Stewart)Virginia International Raceway · Runoffs 2023Runoffs2023Road America · Runoffs 2024Runoffs2024Road America · Runoffs 2026Runoffs2026
F6solid race · dashed qualifying · slower is lowerRoad AmericaVirginia International Raceway
85.5%86%86.5%87%87.5%F6 race best at Runoffs 2023: 87.2% of SM's (Calvin Stewart)F6 race best at Runoffs 2024: 86.0% of SM's (James Weida)F6 race best at Runoffs 2026: 86.2% of SM's (James Weida)F6 qualifying best at Runoffs 2023: 87.0% of SM's (Calvin Stewart)F6 qualifying best at Runoffs 2024: 86.3% of SM's (Calvin Stewart)F6 qualifying best at Runoffs 2026: 85.4% of SM's (Calvin Stewart)Virginia International Raceway · Runoffs 2023Runoffs2023Road America · Runoffs 2024Runoffs2024Road America · Runoffs 2026Runoffs2026
F6solid 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 quickerRoad AmericaVirginia International Raceway
EventF6
Qual bestRace bestTrap% of SM
Road America Runoffs 20262026-09-282:18.489Calvin Stewart · fastest of 13 · top 5 within 4.2s-0.617s (-0.44%)2:20.255James Weida · fastest of 13 · top 5 within 2.0s+1.415s (+1.02%)143.0Calvin Stewart-4.5 mph (-3.1%)86.2%qual 85.4%
No rule changes on record between these events
Road America Runoffs 20242024-10-012:19.106Calvin Stewart · fastest of 22 · top 5 within 1.3s2:18.840James Weida · fastest of 22 · top 5 within 1.0s147.6Calvin Stewart86.0%qual 86.3%
No rule changes on record between these events
Virginia International Raceway Runoffs 20232023-09-231:57.437Calvin Stewart · fastest of 9 · top 5 within 4.7s1:58.816Calvin Stewart · fastest of 9 · top 5 within 3.6s144.0Calvin Stewart87.2%qual 87.0%

By track

TrackEventsTypical % of SMBestLatest
Road America286.0%86.0%Runoffs 202486.2%Runoffs 2026
Virginia International Raceway187.2%87.2%Runoffs 202387.2%Runoffs 2023
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.