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SRF 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: SRF 1:37.344 Mike Miserendino, Runoffs 2016 qualifying

1:401:502:002:102:20SRF race best at Runoffs 2015: 2:16.700 (Cliff White)SRF race best at Runoffs 2016: 1:37.621 (Todd Harris)SRF race best at Runoffs 2017: 1:53.769 (Todd Harris)SRF qualifying best at Runoffs 2015: 2:14.306 (Cliff White)SRF qualifying best at Runoffs 2016: 1:37.344 (Mike Miserendino)SRF qualifying best at Runoffs 2017: 1:51.573 (Thomas Kirchman)Daytona International Speedway · Runoffs 2015Runoffs2015Mid-Ohio Sports Car Course · Runoffs 2016Runoffs2016Indianapolis Motor Speedway · Runoffs 2017Runoffs2017
SRFsolid race · dashed qualifying · slower is lowerDaytona International SpeedwayIndianapolis Motor SpeedwayMid-Ohio Sports Car Course
94.5%95%95.5%96%96.5%97%SRF race best at Runoffs 2015: 94.9% of SM's (Cliff White)SRF race best at Runoffs 2016: 96.9% of SM's (Todd Harris)SRF race best at Runoffs 2017: 95.5% of SM's (Todd Harris)SRF qualifying best at Runoffs 2015: 96.9% of SM's (Cliff White)SRF qualifying best at Runoffs 2016: 96.8% of SM's (Mike Miserendino)SRF qualifying best at Runoffs 2017: 94.3% of SM's (Thomas Kirchman)Daytona International Speedway · Runoffs 2015Runoffs2015Mid-Ohio Sports Car Course · Runoffs 2016Runoffs2016Indianapolis Motor Speedway · Runoffs 2017Runoffs2017
SRFsolid 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 quickerDaytona International SpeedwayIndianapolis Motor SpeedwayMid-Ohio Sports Car Course
EventSRF
Qual bestRace bestTrap% of SM
Indianapolis Motor Speedway Runoffs 20172017-09-251:51.573Thomas Kirchman · fastest of 50 · top 5 within 2.8s1:53.769Todd Harris · fastest of 45 · top 5 within 0.2s95.5%qual 94.3%
No rule changes on record between these events
Mid-Ohio Sports Car Course Runoffs 20162016-09-191:37.344Mike Miserendino · fastest of 27 · top 5 within 0.8s1:37.621Todd Harris · fastest of 27 · top 5 within 0.6s96.9%qual 96.8%
No rule changes on record between these events
Daytona International Speedway Runoffs 20152015-09-212:14.306Cliff White · fastest of 39 · top 5 within 1.2s2:16.700Cliff White · fastest of 38 · top 5 within 0.5s94.9%qual 96.9%

By track

TrackEventsTypical % of SMBestLatest
Daytona International Speedway194.9%94.9%Runoffs 201594.9%Runoffs 2015
Indianapolis Motor Speedway195.5%95.5%Runoffs 201795.5%Runoffs 2017
Mid-Ohio Sports Car Course196.9%96.9%Runoffs 201696.9%Runoffs 2016
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.