All Rankings

Dan Griffin2

PRO
Rating
1938
Overall Rank
#2
PRO Rank
#2
Uncertainty (±RD)
45

Rating History

Skill rating after each GT3 race. The shaded band is the uncertainty range (±RD); it narrows as a driver races more often.

How this rating is calculated

This is a Glicko-2 rating — the same family of system used for chess and for iRacing's own iRating. Every GT3 league race is treated as a head-to-head event: you gain rating for finishing ahead of drivers and lose it for finishing behind, scaled by how strong those drivers are. Beating a high-rated Pro is worth far more than beating a backmarker.

  • One combined ladder. Pro and Am drivers race the same car on the same track, so they are rated together. Division is just a label; the rating is earned on track.
  • Recent races count more. Each race is weighted by age (half-life 8 months), so current form drives the number. Only the last seasons are counted.
  • Uncertainty (RD). New or returning drivers carry a high ±RD until they have raced enough. The floor (1848) is the rating minus 2×RD — a conservative estimate used for promotion decisions so a hot streak on a small sample can't promote someone prematurely.

Counted races: 31 total, 23 in the last ~year.

Race-by-race

DateSeasonTrackFinishWeightRating after
2026-05-26Season 14Circuit des 24 Heures du MansP1 / 190.811938 ±45
2026-05-20Season 14Autodromo Nazionale MonzaP1 / 180.801910 ±45
2026-05-19Season 14Autodromo Internazionale Enzo e Dino FerrariP2 / 170.791879 ±45
2026-05-12Season 14Silverstone CircuitP4 / 200.781856 ±45
2026-05-06Season 14Circuit de Spa-FrancorchampsP9 / 200.761851 ±46
2026-05-05Season 14Brands Hatch CircuitP2 / 190.761895 ±46
2026-04-21Season 14Nürburgring CombinedP13 / 240.731873 ±46
2026-04-15Season 14[Retired] WeatherTech Raceway at Laguna SecaP3 / 210.721954 ±46
2026-04-14Season 14Road AtlantaP2 / 240.721946 ±46
2026-04-07Season 14Road AmericaP1 / 280.701924 ±47
2026-04-01Season 14Virginia International RacewayP1 / 250.691883 ±50
2026-03-31Season 14Miami International AutodromeP1 / 230.691828 ±53
2026-02-03Season 13Mount Panorama CircuitP27 / 320.581753 ±50
2026-01-28Season 13Circuit de Barcelona CatalunyaP3 / 270.581934 ±51
2026-01-28Season 13Circuito de NavarraP3 / 280.581924 ±51
2026-01-20Season 13Circuit ZolderP1 / 240.561914 ±52
2026-01-14Season 13Daytona International SpeedwayP2 / 300.551880 ±54
2026-01-14Season 13Canadian Tire Motorsports ParkP2 / 260.551849 ±57
2025-08-26Season 11Road AmericaP9 / 200.371813 ±52
2025-08-20Season 11Canadian Tire Motorsports ParkP1 / 190.361834 ±53
2025-08-19Season 11Brands Hatch CircuitP2 / 210.361810 ±53
2025-08-12Season 11Watkins Glen InternationalP1 / 240.361786 ±54
2025-08-06Season 11Fuji International SpeedwayP3 / 200.351748 ±55
2025-08-05Season 11Suzuka International Racing CourseP1 / 240.351722 ±57
2025-07-22Season 11Daytona International SpeedwayP2 / 320.341669 ±60
2025-07-16Season 11Road AtlantaP29 / 310.331587 ±67
2025-07-15Season 11Sebring International RacewayP2 / 330.331760 ±72
2025-07-08Season 11Circuit de Spa-FrancorchampsP6 / 310.321681 ±84
2025-07-02Season 11HungaroringP26 / 290.321588 ±105
2025-07-01Season 11Red Bull RingP2 / 280.321985 ±119
2025-06-24Season 11Watkins Glen InternationalP2 / 310.311892 ±153