Grif Mahan

Rating History

Team Race Rating

Rating Rank vs fleet rating Record
0.36 (fleet 0.57) unranked (fewer than 30 matches as skipper, or not active) +0.01 ± 0.18
about what the fleet rating predicts
as skipper 11–33 (25%)
SeasonRegattas Skipper W–LCrew W–L
Fall 202312–8—
Fall 202227–18—
Fall 202112–7—
0.30.40.50.60.7Fall 2022Fall 2023VISA Weekday Team Race #1 (2022-09-17): rating 0.55, fleet rating alone 0.54, offset +0.01; record 1-2 in this boatMASSA Fall 2022 Team Race Championship (2022-10-22): rating 0.54, fleet rating alone 0.53, offset +0.01; record 6-16 in this boatVISA Team Race Championship (2023-10-07): rating 0.44, fleet rating alone 0.40, offset +0.04; record 2-8 in this boatTeam race rating

Rating before each regatta driven (solid; dots green when the boat won 60% or more of its matches there, red under 40%) and what the fleet rating alone would give (dashed). The gap is the team race offset as it stood at the time. Hover a dot for the regatta; click to open it.

Team race surprisal: regatta by regatta

Over 4 graded regattas (44 matches) the record is 11–33 against 11.1 wins the pre-event forecasts expected (−0.1). 0 regattas clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 1 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2023-10-07VISA Team Race Championshipskipper0.63-0.352–83.1−0.980.691%
2022-10-22MASSA Fall 2022 Team Race Championshipskipper0.671.006–165.2+0.320.142%
2022-09-17VISA Weekday Team Race #1skipper0.600.541–21.0−0.060.072%
2021-10-23VISA Team Race Championship and Qualifierskipper0.570.742–71.8+0.170.059%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2024 Team page Season
VISA Poquoson Fleet Race Regatta Skipper A 4 8.8 0.14
VISA Maury/Granby Fleet Regatta Skipper A 3 19.0 -0.67
VISA Fleet Championship Skipper B 7 7.9 0.67
VISA Cox, Cath, PC Varsity Fleet Regatta Skipper A 6 8.3 0.47
Spring 2024 Team page Season
VISA York County Fleet Race Regatta Skipper B 6 4.3 1.38
VISA Fleet Race Championship Skipper A 2 14.5 —
Fall 2023 Team page Season
VISA Team Race Championship Skipper TR 10 20% —
VISA Heritage/Bethel Fleet Regatta Skipper A 3 11.3 -0.97
VISA Varsity Fleet Champs Skipper A 6 11.2 0.89
VISA Poquoson Fleet Race Regatta Skipper A 6 13.3 -0.41
Spring 2023 Team page Season
VISA Kecoughtan Fleet Race Skipper A 6 8.8 -1.11
VISA Fleet Championship Skipper B 1 5.0 -1.50
Fall 2022 Team page Season
VISA Weekday Team Race #1 Skipper TR 5 20% —
VISA Poquoson Fleet Regatta. Skipper B 7 10.0 0.34
VISA NCS JV Fleet race regatta Skipper A 3 1.0 —
VISA Kecoughtan Fleet Race Regatta Skipper A 1 6.0 —
VISA JV Fleet Champs Skipper A 8 1.0 —
VISA Grafton York Fleet Race Regatta Skipper A 7 10.3 -0.10
MASSA Fall 2022 Team Race Championship Skipper TR 22 27% —
Fall 2021 Team page Season
VISA York/Grafton Fleet Regatta Skipper A, B 10 12.9 A -0.73 · B 1.21
VISA WCA/WA JV Fleet Regatta Skipper A 7 2.9 2.09
VISA Team Race Championship and Qualifier Skipper TR 9 22% —

From the notes

Short write-ups of what the ratings and results show, with the numbers and how they were computed.

All notes →

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