Robert Ziman

Rating History

Team Race Rating

Rating Rank vs fleet rating Record
2.08 (fleet 2.79) unranked (fewer than 30 matches as skipper, or not active) +0.06 ± 0.18
about what the fleet rating predicts
as skipper 45–12 (79%)
SeasonRegattas Skipper W–LCrew W–L
Spring 202515–1—
Spring 2023228–8—
Spring 2022112–3—
1.51.61.71.81.922.12.2Spring 2023Spring 2025Tom Noble Team Race (2023-03-04): rating 1.65, fleet rating alone 1.60, offset +0.05; record 2-1 in this boatTom Noble Team Race (2023-03-04): rating 1.65, fleet rating alone 1.60, offset +0.05; record 12-0 in this boatWashington College Team Race (2023-03-18): rating 1.69, fleet rating alone 1.62, offset +0.07; record 14-7 in this boatPirate Team Racing (2025-03-29): rating 2.09, fleet rating alone 2.04, offset +0.06; record 5-1 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 (57 matches) the record is 45–12 against 41.0 wins the pre-event forecasts expected (+4.0). 1 regatta clearly above the rating (P ≤ 20%), 0 clearly below (P ≥ 80%); 3 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2025-03-29Pirate Team Racingskipper2.483.615–14.0+1.130.832%
2023-03-18Washington College Team Raceskipper1.972.0914–713.7+0.120.055%
2023-03-04Tom Noble Team Raceskipper2.072.3414–113.7+0.260.064%
2022-03-19Washington College Team Raceskipper1.332.6612–39.5+1.332.29%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2025 Team page Season
Pirate Team Racing Skipper TR 15 93% —
Fall 2024 Team page Season
Washington College Fall Open Skipper B 13 2.2 3.00
Chesapeake Open Skipper B 6 9.5 1.07
Fall 2023 Team page Season
Webb/Wollum Skipper A 10 4.3 1.91
Chesapeake Open Skipper A 6 12.3 2.29
Spring 2023 Team page Season
Washington College Team Race Skipper TR 21 67% —
Tom Noble Team Race Skipper TR 15 93% —
Owen Trophy Skipper B 14 4.5 3.91
Hanbury Trophy Skipper B 14 5.5 2.37
Fall 2022 Team page Season
Washington College Fall Open Skipper A 8 3.6 2.45
Tom Curtis Memorial Regatta Skipper A 8 9.9 2.35
Spring 2022 Team page Season
Washington College Team Race Skipper TR 15 80% —
GW Invite Skipper B 14 10.2 0.43
Fall 2021 Team page Season
Washington College Fall Skipper B 8 4.8 1.10
Tom Curtis Memorial Regatta Crew B 8 11.2 —
Philly Fleet Race Skipper B 12 5.3 1.15
Chesapeake Invitational Skipper B 8 10.8 2.30

Linked Profiles

League Name School Year
ISSA Robert Ziman CarlmontCarlmont '21

From the notes

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

All notes →