Jack Siefker

Rating History

Team Race Rating

Rating Rank vs fleet rating Record
0.64 (fleet 0.94) unranked (fewer than 30 matches as skipper, or not active) +0.06 ± 0.18
about what the fleet rating predicts
as skipper 12–3 (80%)
SeasonRegattas Skipper W–LCrew W–L
Spring 202610–3—
Spring 2025112–0—

Team race surprisal: regatta by regatta

Over 2 graded regattas (15 matches) the record is 12–3 against 8.5 wins the pre-event forecasts expected (+3.5). 1 regatta clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 9 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-05-092026 LMSS Team Raceskipper0.82-2.180–30.9≤−3.001.3>99%
2025-05-10LMSS Team Race 2025skipper0.373.3712–07.6≥+3.007.7<1%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2026 Team page Season
2026 LMSS Team Race Skipper TR 3 0% —
Fall 2025 Team page Season
MSS #1 WBSS Skipper B 4 2.0 2.77
2025 MISSA Keelboat Championship Silver Keelboat Crew A 4 2.8 —
2025 MISSA Keelboat Championship White Keelboat Crew A 4 6.2 —
Spring 2025 Team page Season
LMSS Team Race 2025 Skipper TR 12 100% —
Spring 2024 Team page Season
MSS #2 Skipper A 8 9.9 0.01
May Madness Regatta: C420 Division Skipper B 12 8.2 0.59
Fall 2023 Team page Season
MSS Fall 2023 Conference Regatta #2 Skipper A 6 8.3 0.61
Art Johnson Skipper A 12 10.4 -0.52
2023 Fall MN Conference #1 Skipper B 5 2.2 2.32
Spring 2023 Team page Season
MSS Conference #2 Skipper B 6 7.0 -0.15
MN Conference #3 Crew B 6 2.7 +0.65
Fall 2022 Team page Season
Minnesota MSS Fall 2022 #3 Skipper A 6 8.8 -0.59

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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