Boston University '20
How much better or worse boats do with this sailor crewing than their skipper's rating predicts, shown on the skipper scale so crews can be lined up across teams. Percentiles compare against rostered crews that season (league) or teammates (team).
How crew ratings work →Crew effect over their whole career, not scaled to a team: 1.62 percentile among ICSA crews with 30+ races. Uncertainty ±0.096 rating points from 80 races with rated skippers.
How crew ratings work →No season rating yet: needs 8+ crewed races in a season.
A team race rating is what the sailor brings to one of the three boats: 0.72 x their fleet rating plus a team-race offset learned from every match they sailed, shrunk toward zero so a few matches cannot move it far. Sides are compared by the sum of their three boats plus the school's team race strength.
| Rating | Rank | vs fleet rating | Record |
|---|---|---|---|
| 1.94 (fleet 2.67) | unranked (fewer than 30 matches as skipper, or not active) | +0.01 ± 0.18 about what the fleet rating predicts |
as skipper 41–34 (55%) as crew 8–10 (44%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2020 | 1 | 6–9 | — |
| Spring 2019 | 2 | 17–12 | — |
| Spring 2018 | 2 | 18–13 | — |
| Fall 2016 | 1 | — | 8–10 |
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.
For each regatta, the boat value that would have made this sailor's record least surprising: the shift applied to their boat alone, in the matches they sailed, with team-mates and opponents fixed at the pre-event forecast. A boat's skipper and crew share the boat, so they get the same number when they sailed every match together. Surprise is in bits at the pre-event value minus at the performance value; P(this good or better) treats the matches as independent at the forecast probabilities. Regattas forecast from fewer than 1,000 training matches are left out.
Over 6 graded regattas (93 matches) the record is 49–44 against 41.4 wins the pre-event forecasts expected (+7.6). 1 regatta clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 7 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2020-02-29 | Women's Team Race | skipper | 2.41 | 2.69 | 6–9 | 5.2 | +0.27 | 0.2 | 43% |
| 2019-04-13 | Women's Team Race National Invitational | skipper | 2.52 | 3.06 | 12–7 | 10.1 | +0.54 | 0.7 | 23% |
| 2019-03-24 | Duplin Women's Team Race | skipper | 2.60 | 1.61 | 5–5 | 6.9 | −0.98 | 1.4 | 96% |
| 2018-04-28 | Women's National Team Race Invitational | skipper | 2.29 | 3.49 | 12–6 | 7.0 | +1.20 | 4.3 | 1% |
| 2018-03-24 | Joseph R. Duplin Women's Team Race | skipper | 1.97 | 2.39 | 6–7 | 4.9 | +0.42 | 0.4 | 34% |
| 2016-11-05 | Hap Moore Team Race | crew | 3.21 | 3.37 | 8–10 | 7.3 | +0.16 | 0.1 | 46% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Spring 2020 Team page Season | |||||
| Women's Team Race Women's | Skipper | TR | 15 | 40% | — |
| Fall 2019 Team page Season | |||||
| Yale Women's Women's | Skipper | B | 13 | 7.9 | 2.85 |
| Women's Showcase Qualifier A Women's | Skipper | B | 6 | 10.8 | 2.04 |
| The Victorian Urn Women's | Skipper | A | 12 | 11.2 | 2.23 |
| Toni Deutsch '58 Regatta Women's | Skipper | A | 16 | 8.6 | 2.63 |
| Stu Nelson Women's | Skipper | B | 13 | 7.4 | 2.67 |
| Regis Bowl Women's | Skipper | B | 15 | 4.3 | 3.20 |
| Mrs. Hurst Bowl Women's | Skipper | B | 6 | 7.3 | 2.76 |
| Spring 2019 Team page Season | |||||
| Women's Team Race National Invitational Women's | Skipper | TR | 19 | 63% | — |
| Sperry Women's Western Semifinal Women's | Skipper | B | 4 | 14.2 | 1.03 |
| Sperry Women's National Championship Women's | Crew | B | 4 | 12.0 | — |
| NEISA Women's Championship Women's | Skipper | B | 4 | 14.2 | 0.93 |
| Emily Wick Trophy Women's | Skipper | B | 14 | 9.9 | 2.56 |
| Duplin Women's Team Race Women's | Skipper | TR | 10 | 50% | — |
| Dellenbaugh Women's Trophy Women's | Skipper | B | 8 | 10.4 | 1.82 |
| Fall 2018 Team page Season | |||||
| Yale Women's Women's | Crew | B | 9 | 6.1 | — |
| Victorian Urn Trophy Women's | Crew | A | 2 | 9.5 | — |
| Toni Deutsch '58 Regatta Women's | Skipper | B | 12 | 6.2 | 2.82 |
| Stu Nelson Women's | Skipper | B | 9 | 4.8 | 3.42 |
| Regis Trophy Women's | Skipper | B | 5 | 2.8 | 4.15 |
| Mrs. Hurst Bowl Women's | Skipper | B | 10 | 6.0 | 2.97 |
| Jen Harris Women's Women's | Skipper | B | 9 | 8.9 | 2.66 |
| Spring 2018 Team page Season | |||||
| Women's National Team Race Invitational Women's | Skipper | TR | 18 | 67% | — |
| Wick/Shrew Women's | Skipper | B | 3 | 13.7 | 1.84 |
| Vietor Trophy | Crew | B | 3 | 6.3 | — |
| President's Trophy Women's | Skipper | B | 6 | 7.3 | 2.30 |
| Joseph R. Duplin Women's Team Race Women's | Skipper | TR | 13 | 46% | — |
| Dellenbaugh Women's Trophy Women's | Crew | B | 6 | 4.0 | — |
| Fall 2017 Team page Season | |||||
| Sister Esther Open | Skipper | A | 5 | 13.6 | 1.21 |
| Regis Bowl Women's | Crew | B | 6 | 6.0 | — |
| Mrs. Hurst Bowl Women's | Crew | B | 5 | 10.4 | — |
| Great Herring Pond Open | Skipper | A | 7 | 3.7 | 2.76 |
| Amanda Trophy Women's | Skipper | A | 6 | 7.3 | 2.82 |
| Spring 2017 Team page Season | |||||
| Vietor Trophy | Crew | B | 7 | 9.7 | — |
| Sperry Women's Eastern Semifinal Women's | Crew | B | 3 | 7.7 | — |
| Sperry College Sailing Women's Nationals Women's | Crew | B | 8 | 9.1 | — |
| President's Trophy Women's | Skipper | B | 8 | 8.8 | 1.35 |
| Emily Wick Trophy Women's | Skipper | B | 10 | 15.1 | 1.68 |
| Dellenbaugh Women's Trophy Women's | Crew | A | 8 | 11.2 | — |
| Central Series 2 | Skipper | B | 4 | 4.8 | 2.59 |
| Fall 2016 Team page Season | |||||
| Women's Atlantic Coast Championship Women's | Crew | B | 3 | 15.3 | — |
| Victorian Coffee Urn Women's | Skipper | A | 5 | 10.4 | 2.40 |
| Tufts Women's Women's | Skipper | A | 3 | 5.3 | — |
| Toni Deutsch Regatta Women's | Skipper | B | 13 | 8.7 | 1.79 |
| Regis Bowl Women's | Skipper | B | 10 | 8.6 | 2.08 |
| The Hatch Brown Trophy | Crew | B | 13 | 13.1 | — |
| Hap Moore Team Race | Crew | TR | 18 | 44% | — |
| David Lee Arnoff | Skipper | B | 12 | 8.1 | 1.49 |
| Amanda Trophy Women's | Skipper | B | 9 | 8.6 | 1.77 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
