Ethan Purdon

Rating History

Team Race Rating

Rating Rank vs fleet rating Record
0.86 (fleet 1.43) 166 of 231 −0.03 ± 0.17
about what the fleet rating predicts
as skipper 25–24 (51%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2026217–12—
Fall 202528–12—
0.80.911.11.21.3Fall 2025Spring 2026Fall 2026MASSA Team Race Championship (2025-10-18): rating 0.95, fleet rating alone 0.94, offset +0.01; record 1-3 in this boatMASSA Team Race Championship (2025-10-18): rating 0.95, fleet rating alone 0.94, offset +0.01; record 4-6 in this boatMDISA Team Race (2026-04-11): rating 0.91, fleet rating alone 0.91, offset +0.00; record 3-2 in this boatMDISA Team Race (2026-04-11): rating 0.91, fleet rating alone 0.91, offset +0.00; record 10-2 in this boatMASSA 2026 Team Race Championship/Baker Qualifier (2026-04-25): rating 0.92, fleet rating alone 0.89, offset +0.03; record 1-3 in this boatMASSA 2026 Team Race Championship/Baker Qualifier (2026-04-25): rating 0.92, fleet rating alone 0.89, offset +0.03; record 3-5 in this boatMDISA Team Race Qualifier (2026-10-03): rating 1.11, fleet rating alone 1.13, offset -0.03; record 7-3 in this boatMASSA 2026 Fall Team Race Championship (2026-10-17): rating 1.12, fleet rating alone 1.15, offset -0.03; record 5-13 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 (49 matches) the record is 25–24 against 26.9 wins the pre-event forecasts expected (−1.9). 1 regatta clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 6 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-04-25MASSA 2026 Team Race Championship/Baker Qualifierskipper1.20-1.144–87.4−2.344.6>99%
2026-04-11MDISA Team Raceskipper1.152.5813–411.2+1.421.416%
2025-10-18MASSA Team Race Championshipskipper1.220.785–95.6−0.440.180%
2025-10-05MDISA Team Race Qualifierskipper1.191.533–32.8+0.330.060%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2026 Team page Season
MDISA TAYC Fleet Tier 1 Skipper A 4 4.8 2.44
MDISA Varsity Championship Skipper B 3 3.7 2.31
MDISA Team Race Skipper TR 17 76% —
MDISA 's T1 - AYC's "Polar Bear Plunge" Regatta Skipper B 2 9.0 0.54
MASSA 2026 Team Race Championship/Baker Qualifier Skipper TR 12 33% —
2026 ISSA Mallory National Championship Skipper B 2 16.5 1.31
Fall 2025 Team page Season
MDISA Team Race Qualifier Skipper TR 6 50% —
MDISA SSA Fleet Race Skipper B 3 6.3 1.17
MDISA Fleet Qualifier Skipper B 7 6.7 1.21
MDISA DC Sail T1 Fleet Race Skipper B 7 5.4 1.57
MDISA's T1 - AYC's "Fall Home Coming" Fleet Race Skipper B 2 7.5 0.90
MASSA Team Race Championship Skipper TR 14 36% —
MASSA 2025 Fall Fleet Championship Skipper B 4 10.0 1.42
Spring 2025 Team page Season
MDISA BCSC Tier 2 May Regatta Skipper A 5 1.8 2.72
Fall 2024 Team page Season
MDISA WRSC Fall Tier 2 Regatta 2024 Skipper A 3 3.7 0.23
MDISA JV Championship Skipper A 5 11.0 -0.07
MDISA DC Sail T2 Fleet Race Skipper A 2 3.0 0.74
MDISA BCSC October Tier 2 Regatta Skipper A 6 4.3 1.62

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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