Marco Welch

Rating History

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Keelboat0.96unranked (fewer than 10 races or not active)8Fall 2026

Team Race Rating

Rating Rank vs fleet rating Record
1.66 (fleet 2.32) unranked (fewer than 30 matches as skipper, or not active) −0.02 ± 0.18
about what the fleet rating predicts
as skipper 6–30 (17%)
SeasonRegattas Skipper W–LCrew W–L
Spring 202545–26—
Fall 202411–4—
1.31.41.51.6Spring 2025Thames River Team Race (2025-03-01): rating 1.43, fleet rating alone 1.42, offset +0.01; record 0-5 in this boatJohn Jackson Memorial Regatta (2025-03-08): rating 1.44, fleet rating alone 1.43, offset +0.00; record 0-2 in this boatJohn Jackson Memorial Regatta (2025-03-08): rating 1.44, fleet rating alone 1.43, offset +0.00; record 0-4 in this boatMass Maritime Team Race Invite (2025-03-15): rating 1.44, fleet rating alone 1.45, offset -0.01; record 5-3 in this boat64th Jan Friis Team Race (2025-03-22): rating 1.46, fleet rating alone 1.47, offset -0.01; record 0-3 in this boat64th Jan Friis Team Race (2025-03-22): rating 1.46, fleet rating alone 1.47, offset -0.01; record 0-9 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 (36 matches) the record is 6–30 against 6.4 wins the pre-event forecasts expected (−0.4). 0 regattas clearly above the rating (P ≤ 20%), 3 clearly below (P ≥ 80%); 1 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2025-03-2264th Jan Friis Team Raceskipper1.87-1.130–120.1≤−3.000.1>99%
2025-03-15Mass Maritime Team Race Inviteskipper1.811.865–34.9+0.060.063%
2025-03-08John Jackson Memorial Regattaskipper1.88-1.120–60.4≤−3.000.6>99%
2025-03-01Thames River Team Raceskipper1.79-1.210–50.3≤−3.000.5>99%
2024-10-20Franklin Lane Trophy Team Raceskipper1.732.181–40.7+0.450.154%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2026 Team page Season
Hewitt Trophy Skipper A 14 8.5 2.42
Harman Cup Keelboat Skipper A 8 6.6 -0.59
David Lee Arnoff Skipper B 14 7.9 0.95
Callagy Ross '14 Regatta Skipper A 14 4.4 2.14
Fall 2025 Team page Season
Penobscot Bay Open Skipper B 8 9.6 -0.18
NEISA Match Race Championship Keelboat Crew A 3 8.0 —
Danmark Trophy Skipper B 11 17.4 1.71
Chris Loder Trophy Skipper A 6 2.0 3.85
2025 Nicholas Barnett Trophy Skipper B 8 6.6 1.85
Spring 2025 Team page Season
Truxtun Umsted Skipper B 7 14.4 1.10
Thames River Team Race Skipper TR 7 0% —
Mass Maritime Team Race Invite Skipper TR 10 70% —
John Jackson Memorial Regatta Skipper TR 14 7% —
George Morris Trophy Skipper A 8 7.5 2.10
64th Jan Friis Team Race Skipper TR 12 0% —
Fall 2024 Team page Season
Nickerson Trophy Skipper A 12 11.6 1.75
Hewitt Trophy Skipper B 4 8.0 1.87
Franklin Lane Trophy Team Race Skipper TR 5 20% —
Callagy Ross Regatta Skipper A 4 4.2 2.16
BU Invite Skipper A 6 5.8 3.21

Linked Profiles

League Name School Year
ISSA Marco Welch Broadneck High SchoolBroadneck High School '24
ISSA Marco Welch Key SchoolKey School '24

From the notes

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

All notes →