Griffin Jones

Rating History

Crew Rating

Career: 45.55 percentile of ICSA crews (limited evidence)
1.001.251.501.75L. Wallace (11 races): -0.14L. WallaceSpring 2025: rating 1.52Spring 2025U. S. Merchant Marine Academy
▲ boats did better with this crew than with the skipper's usual crews▼ worseArrow length = size of the push, in rating points
Season Team Rating Range League
percentile
Team
percentile
On team Races Team page
Spring 2025 U. S. Merchant Marine Academy 1.52 Rating 1.52; 90% range -1.8 to 4.8; team skipper average 1.77 53.03 50.00 5 of 9 11 Team page

Team Race Rating

Rating Rank vs fleet rating Record
0.64 (fleet 0.87) 321 of 328 +0.01 ± 0.18
about what the fleet rating predicts
as skipper 3–38 (7%)
SeasonRegattas Skipper W–LCrew W–L
Spring 202610–8—
Spring 202533–30—
0.10.20.30.40.50.6Spring 2025Spring 2026Graham Hall Team Race (2025-03-15): rating 0.15, fleet rating alone 0.16, offset -0.01; record 0-1 in this boatGraham Hall Team Race (2025-03-15): rating 0.15, fleet rating alone 0.16, offset -0.01; record 0-2 in this boatGraham Hall Team Race (2025-03-15): rating 0.15, fleet rating alone 0.16, offset -0.01; record 0-10 in this boatAdmiral Moore Team Race (2025-03-22): rating 0.15, fleet rating alone 0.16, offset -0.02; record 1-3 in this boatAdmiral Moore Team Race (2025-03-22): rating 0.15, fleet rating alone 0.16, offset -0.02; record 1-9 in this boatKP Open Team Race (2026-03-21): rating 0.51, fleet rating alone 0.50, offset +0.01; record 0-8 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 (41 matches) the record is 3–38 against 2.4 wins the pre-event forecasts expected (+0.6). 1 regatta clearly above the rating (P ≤ 20%), 3 clearly below (P ≥ 80%); 3 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-03-21KP Open Team Raceskipper0.85-2.150–80.2≤−3.000.4>99%
2025-03-22Admiral Moore Team Raceskipper0.302.002–120.5+1.702.19%
2025-03-15Graham Hall Team Raceskipper0.24-2.760–130.1≤−3.000.1>99%
2025-03-01Tom Noble Team Raceskipper0.16-1.111–51.5−1.270.497%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2026 Team page Season
John Quinn Skipper A 4 2.8 1.71
Intrepid Trophy - MAISA Match Race Championship Keelboat Crew A 1 3.0 —
Spring 2026 Team page Season
KP Open Team Race Skipper TR 9 0% —
America Trophy Crew A 4 10.8 +0.18
Admiral's Cup Crew A 2 13.0 -0.01
Fall 2025 Team page Season
Savin Hill Invite Skipper B 8 12.6 0.29
Oberg Trophy Skipper C 5 14.4 0.74
NY Maritime Fall Open Skipper B 5 6.4 1.52
Northeast Qualifier #1 Skipper A 5 4.6 -0.17
The John Quinn Skipper A 8 5.6 0.47
Spring 2025 Team page Season
Tom Noble Team Race Skipper TR 7 29% —
Graham Hall Team Race Skipper TR 15 0% —
Engineer's Cup Open Crew A 2 1.0 +0.12
Admiral Moore Team Race Skipper TR 14 14% —
87th Boston Dinghy Club Challenge Cup Crew B 9 9.1 -0.26
Fall 2024 Team page Season
Stony Brook Fall Open Skipper B 6 6.3 -0.46
The John Quinn Skipper A 4 5.5 -0.40
Intrepid Trophy - MAISA Match Race Championship Keelboat Crew A 1 3.0 —

From the notes

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

All notes →