Cooper Nefsky

Rating History

Crew Rating

Career: 5.63 percentile of ICSA crews (limited evidence)

No season rating yet: needs 8+ crewed races in a season.

Team Race Rating

Rating Rank vs fleet rating Record
1.86 (fleet 2.58) unranked (fewer than 30 matches as skipper, or not active) −0.00 ± 0.18
about what the fleet rating predicts
as skipper 8–21 (28%)
as crew 7–12 (37%)
SeasonRegattas Skipper W–LCrew W–L
Spring 201733–34–5
Fall 201613–61–2
Spring 20151—2–2
Spring 201412–120–3
1.81.922.1Fall 2016Spring 2017Hap Moore Team Race (2016-11-05): rating 1.96, fleet rating alone 2.00, offset -0.03; record 1-2 in this boatHap Moore Team Race (2016-11-05): rating 1.96, fleet rating alone 2.00, offset -0.03; record 2-4 in this boatCamel Team Race (2017-04-02): rating 1.94, fleet rating alone 2.01, offset -0.07; record 3-3 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 8 graded regattas (48 matches) the record is 15–33 against 22.6 wins the pre-event forecasts expected (−7.6). 0 regattas clearly above the rating (P ≤ 20%), 6 clearly below (P ≥ 80%); 10 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2017-04-08New England Team Race Championship/Fowle Trophycrew2.85-0.150–40.9≤−3.001.5>99%
2017-04-02Camel Team Raceskipper2.361.403–34.2−0.970.994%
2017-03-11John Jackson Memorial Team Racecrew2.773.224–13.6+0.450.158%
2016-11-05Hap Moore Team Raceskipper2.201.683–64.1−0.520.486%
2016-11-05Hap Moore Team Racecrew2.201.271–21.7−0.930.491%
2015-04-0434th Lynne Marchiando Regattacrew3.384.232–21.2+0.850.537%
2014-03-292nd Barque Eagle Team Raceskipper1.910.232–125.4−1.683.8>99%
2014-03-292nd Barque Eagle Team Racecrew1.91-1.090–31.4≤−3.002.6>99%

Regatta results

Regatta Role Div Races Avg Rating
Spring 2017 Team page Season
Thompson Trophy Skipper C 1 13.0 —
New England Team Race Championship/Fowle Trophy Crew TR 11 18% —
John Jackson Memorial Team Race Crew TR 10 60% —
Camel Team Race Skipper TR 10 60% —
Fall 2016 Team page Season
Sherman Hoyt Trophy Crew B 3 8.3 —
Phil Harman Cup Keelboat Crew A 6 4.0 —
Hap Moore Team Race Crew TR 18 50% —
Erwin Schell Trophy Skipper A 1 10.0 —
Central Series 1 Skipper A 6 10.8 1.58
J/70 Wednesday Series Four Keelboat Crew A 4 4.8 —
Fall 2015 Team page Season
Oberg Trophy Skipper C 7 6.7 3.21
Hatch Brown Trophy Skipper C 10 10.7 2.78
Harman cup Keelboat Crew A 8 5.8 —
Captain Hurst Bowl Skipper C 14 8.3 3.02
74th Erwin Schell Trophy Skipper B 6 12.0 2.52
33rd Professor Stedman Hood Trophy Skipper A 9 13.7 2.20
Spring 2015 Team page Season
Thompson Trophy Skipper B 13 9.8 2.98
34th Lynne Marchiando Regatta Crew TR 15 47% —
Fall 2014 Team page Season
Pen Bay Open Skipper A 8 10.4 2.47
Moody Trophy Skipper B 10 13.9 1.64
Lake Champlain Open Skipper B 4 2.5 4.57
76th Annual Oberg Trophy Skipper C 7 9.7 2.45
74th Professor Erwin Schell Trophy Crew B 2 11.5 —
Spring 2014 Team page Season
Thompson Trophy Skipper B 1 13.0 —
Southern Series 5 @ SRU Skipper B 10 3.7 0.71
Icebreaker Regatta Crew A 6 5.5 —
2nd Barque Eagle Team Race Skipper TR 17 12% —
Admiral Alymers Trophy Skipper A 4 9.8 1.46
Fall 2013 Team page Season
Southern Series 3 Skipper B 6 10.0 -0.64
Nickerson Trophy Skipper A 8 7.4 2.28
Lake Champlain Open Crew B 7 7.9 —
Atlantic Coast Tournament Skipper B 2 8.0 2.78

From the notes

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

All notes →