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: 81.90 percentile among ICSA crews with 30+ races. Uncertainty ±0.090 rating points from 162 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 |
|---|---|---|---|
| 0.59 (fleet 0.82) | unranked (fewer than 30 matches as skipper, or not active) | +0.00 about what the fleet rating predicts |
as crew 18–18 (50%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2019 | 2 | — | 7–10 |
| Spring 2018 | 1 | — | 8–7 |
| Fall 2017 | 1 | — | 3–1 |
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 4 graded regattas (36 matches) the record is 18–18 against 23.2 wins the pre-event forecasts expected (−5.2). 0 regattas clearly above the rating (P ≤ 20%), 3 clearly below (P ≥ 80%); 6 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2019-03-30 | Jumbo Team Race | crew | 3.22 | 1.04 | 2–5 | 4.6 | −2.19 | 4.0 | >99% |
| 2019-03-24 | Duplin Women's Team Race | crew | 2.60 | 1.61 | 5–5 | 6.9 | −0.98 | 1.4 | 96% |
| 2018-04-07 | Mystic Lake Team Race | crew | 2.39 | 2.05 | 8–7 | 9.1 | −0.34 | 0.3 | 82% |
| 2017-11-04 | The Mike Horn Trophy | crew | 2.44 | 3.06 | 3–1 | 2.6 | +0.63 | 0.2 | 55% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Fall 2019 Team page Season | |||||
| Yale Women's Women's | Crew | A | 13 | 10.8 | — |
| Stu Nelson Women's | Crew | B | 13 | 7.4 | — |
| Mrs. Hurst Bowl Women's | Crew | A | 6 | 7.8 | — |
| Harman Trophy Keelboat | Crew | A | 4 | 2.0 | — |
| The Dark of Night Regatta | Skipper | B | 2 | 10.5 | -0.66 |
| Spring 2019 Team page Season | |||||
| Salve Alymers | Crew | A | 10 | 6.9 | — |
| Mendums Pond Invite | Crew | A | 3 | 1.7 | — |
| Jumbo Team Race | Crew | TR | 7 | 29% | — |
| Duplin Women's Team Race Women's | Crew | TR | 10 | 50% | — |
| Central Series #1 | Crew | B | 5 | 4.6 | — |
| Fall 2018 Team page Season | |||||
| Yale Women's Women's | Crew | A | 10 | 6.6 | — |
| Women's Showcase Final B Women's | Crew | A | — | — | — |
| Sister Esther Open | Crew | B | 10 | 10.8 | — |
| Moody Trophy | Crew | B | 6 | 2.0 | — |
| Hood Trophy | Crew | A | 3 | 9.0 | — |
| 76th Pine Trophy Keelboat | Crew | A | 14 | 4.2 | — |
| Spring 2018 Team page Season | |||||
| Vietor Trophy | Crew | A | 3 | 6.7 | — |
| Mystic Lake Team Race | Crew | TR | 14 | 50% | — |
| George Morris Trophy | Crew | B | 4 | 13.2 | — |
| Central 2 | Crew | A | 6 | 2.3 | — |
| BU Trophy | Crew | B | 11 | 6.5 | — |
| Fall 2017 Team page Season | |||||
| Regis Bowl Women's | Crew | A | 8 | 11.6 | — |
| Mrs. Hurst Bowl Women's | Crew | B | 3 | 9.3 | — |
| The Mike Horn Trophy | Crew | TR | 5 | 80% | — |
| Great Herring Pond Open | Crew | B | 7 | 2.6 | — |
| David Lee Arnoff Regatta | Crew | A | 13 | 8.0 | — |
| Dark of Night Regatta | Crew | B | 2 | 7.5 | — |
| Callagy Ross Trophy | Crew | A | 2 | 4.0 | — |
| Amanda Trophy Women's | Crew | A | 6 | 7.3 | — |
| Spring 2017 Team page Season | |||||
| President's Trophy Women's | Crew | B | 8 | 9.6 | — |
| NEISA J70 Two-Day Invite Keelboat | Crew | A | 9 | 4.2 | — |
| George Morris Trophy | Crew | B | 2 | 6.0 | — |
| Fall 2016 Team page Season | |||||
| Salt Pond Invite | Crew | B | 4 | 6.8 | — |
| The George Warren Smith Trophy | Crew | B | 5 | 4.2 | — |
| Central Series 1 | Crew | A | 1 | 11.0 | — |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
