Thomas Ha

Rating History

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Keelboat0.35unranked (fewer than 10 races or not active)4Spring 2024

Team Race Rating

Rating Rank vs fleet rating Record
0.57 (fleet 0.86) 196 of 231 +0.04 ± 0.16
about what the fleet rating predicts
as skipper 27–35 (44%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2026211–19—
Spring 2025213–11—
Spring 202413–5—
0.40.50.60.70.8Spring 2025Spring 2026NESSA Team Racing Tournament (Terk Trophy) (2025-05-03): rating 0.73, fleet rating alone 0.74, offset -0.01; record 8-6 in this boatMBL TR Tournament (2025-05-17): rating 0.66, fleet rating alone 0.64, offset +0.02; record 5-5 in this boat2026 NESSA Team Racing Champs (Presidents Trophy) (2026-05-02): rating 0.52, fleet rating alone 0.53, offset -0.01; record 4-10 in this boatNational Invitational Tournament (Founders Trophy) (2026-05-16): rating 0.54, fleet rating alone 0.53, offset +0.01; record 7-9 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 5 graded regattas (62 matches) the record is 27–35 against 26.9 wins the pre-event forecasts expected (+0.1). 0 regattas clearly above the rating (P ≤ 20%), 2 clearly below (P ≥ 80%); 3 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-05-16National Invitational Tournament (Founders Trophy)skipper0.941.087–96.7+0.140.053%
2026-05-022026 NESSA Team Racing Champs (Presidents Trophy)skipper0.861.674–102.8+0.810.628%
2025-05-17MBL TR Tournamentskipper0.73-0.545–57.2−1.271.697%
2025-05-03NESSA Team Racing Tournament (Terk Trophy)skipper0.941.608–66.5+0.660.627%
2024-05-18NESSA Team Racing Tournament (Terk Trophy)skipper0.800.273–53.7−0.530.282%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2026 Team page Season
2026 NESSA O’Day Qualifier - Sharon Skipper B 5 6.4 1.11
National Invitational Tournament (Founders Trophy) Skipper TR 16 44% —
2026 NESSA Team Racing Champs (Presidents Trophy) Skipper TR 14 29% —
2026 NESSA Fleet Racing Championship(O'Day Trophy) Skipper B 6 15.2 0.23
Fall 2025 Team page Season
Tabor Fall Invite - e420 Skipper B 2 12.0 0.21
Roy Williams Invitational Skipper A 4 11.8 0.78
ISSA Great Oaks Invitational Gold Skipper A 2 12.0 -0.27
Fall FunFest Skipper A 3 9.3 1.35
Duxbury Bay Maritime School Invitational Skipper A 4 12.5 0.28
2025 Arnold Brown Regatta Skipper B 2 9.0 -0.08
Spring 2025 Team page Season
NESSA Team Racing Tournament (Terk Trophy) Skipper TR 14 57% —
NESSA O'Day Qualifier - Quincy Skipper B 6 6.7 0.97
MBL TR Tournament Skipper TR 10 50% —
420B - 2025 Zima MBL Championship Skipper A 3 8.7 -0.12
Fall 2024 Team page Season
Tabor Fall Invite - 420 Skipper B 3 10.3 0.54
Fall FunFest (Gleekman Trophy) Skipper A 2 16.0 -1.15
Duxbury Bay Maritime School Fall Invitational Skipper A 4 9.2 0.03
ARNOLD BROWN 2024 Skipper A 2 9.5 -0.08
Spring 2024 Team page Season
Sharon Invitational Fleet Race Regatta Skipper A 2 2.0 3.48
NESSA Team Racing Tournament (Terk Trophy) Skipper TR 9 33% —
NESSA O'Day Qualifier - Quincy, MA Skipper B 6 3.2 2.33
Merc Gold - 2024 Zimba MBL Championship Skipper A 10 2.9 2.12
Mass States hosted by BU Skipper B 4 3.2 1.55
Keelboat Kickoff Keelboat Skipper B 4 6.8 0.63
Donald Greene Regatta Skipper B 3 7.3 1.38
Fall 2023 Team page Season
NESSA Fall FunFest (Gleekman Trophy) Skipper A 3 11.3 0.04
Spring 2023 Team page Season
MBL Freshman/Sophomore Regatta Skipper B 3 2.3 0.80
Donald Greene Regatta '23 Skipper B 3 9.3 0.52

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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