Griffin Lapham

Rating History

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Singlehanded1.58unranked (fewer than 10 races or not active)9Fall 2022

Team Race Rating

Rating Rank vs fleet rating Record
1.45 (fleet 1.91) unranked (fewer than 30 matches as skipper, or not active) +0.06 ± 0.17
about what the fleet rating predicts
as skipper 30–24 (56%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2023110–10—
Spring 2022220–14—
0.80.911.11.21.31.41.5Spring 2022Spring 2023Mystic Lake TR (2022-04-09): rating 0.95, fleet rating alone 0.88, offset +0.07; record 9-5 in this boatTeam Racing Invite (2023-03-25): rating 1.36, fleet rating alone 1.27, offset +0.10; record 3-3 in this boatTeam Racing Invite (2023-03-25): rating 1.36, fleet rating alone 1.27, offset +0.10; record 7-7 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 3 graded regattas (54 matches) the record is 30–24 against 22.6 wins the pre-event forecasts expected (+7.4). 2 regattas clearly above the rating (P ≤ 20%), 0 clearly below (P ≥ 80%); 6 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2023-03-25Team Racing Inviteskipper1.831.7310–1010.4−0.100.067%
2022-04-09Mystic Lake TRskipper1.262.439–55.6+1.182.94%
2022-03-26Boston University Team Raceskipper0.922.0011–96.6+1.083.52%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2023 Team page Season
Team Racing Invite Skipper TR 20 50% —
Admirals Cup Crew A 1 18.0 -0.46
Fall 2022 Team page Season
Sherman Hoyt Trophy Crew B 2 9.5 —
Savin Hill Invite Skipper B 5 6.6 3.03
Rudi Oberg Trophy Skipper B 12 11.3 1.90
Montotype Trophy - NEISA Singlehanded Championship Singlehanded Skipper A 9 17.8 1.56
Bears Invite Skipper A 3 8.7 3.04
Spring 2022 Team page Season
Thompson Throphy Crew C 4 6.2 —
Mystic Lake TR Skipper TR 14 64% —
Boston University Team Race Skipper TR 20 55% —
Fall 2021 Team page Season
The Nickerson Trophy Skipper A 8 18.9 0.88
Bears Invite Skipper A 7 15.0 0.82

From the notes

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

All notes →