Severn School '22
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: 70.17 percentile among ICSA crews with 30+ races. Uncertainty ±0.090 rating points from 186 races with rated skippers.
How crew ratings work →Includes linked high school and college seasons.
| Season | Team | Rating | Range | League percentile |
Team percentile |
On team | Races | Team page |
|---|---|---|---|---|---|---|---|---|
| Spring 2026 | Tulane University | 3.14 | 87.30 | 21.43 | 6 of 7 | 35 | Team page | |
| Fall 2025 | Tulane University | 3.00 | 83.97 | 44.12 | 10 of 17 | 29 | Team page | |
| Spring 2025 | Tulane University | 3.65 | 89.41 | 56.25 | 4 of 8 | 21 | Team page | |
| Fall 2024 | Tulane University | 3.00 | 82.27 | 53.12 | 8 of 16 | 40 | Team page | |
| Spring 2024 | Tulane University | 4.36 | 93.76 | 82.14 | 3 of 14 | 12 | Team page | |
| Fall 2023 | Tulane University | 3.91 | 89.82 | 79.41 | 4 of 17 | 19 | Team page | |
| Spring 2023 | Tulane University | 3.84 | 88.50 | 72.22 | 3 of 9 | 22 | Team page |
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 |
|---|---|---|---|
| 0.19 (fleet 0.31) | unranked (fewer than 30 matches as skipper, or not active) | +0.00 about what the fleet rating predicts |
as crew 31–7 (82%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2022 | 3 | — | 15–5 |
| Fall 2021 | 1 | — | 11–1 |
| Fall 2018 | 1 | — | 5–1 |
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 5 graded regattas (38 matches) the record is 31–7 against 33.0 wins the pre-event forecasts expected (−2.0). 0 regattas clearly above the rating (P ≤ 20%), 2 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) |
|---|---|---|---|---|---|---|---|---|---|
| 2022-04-30 | MASSA 2022 Team Race Championship | crew | 2.55 | 5.55 | 3–0 | 2.8 | ≥+3.00 | 0.2 | 84% |
| 2022-04-09 | MDISA Team Race Qualifier | crew | 2.61 | 5.61 | 10–0 | 9.7 | ≥+3.00 | 0.4 | 75% |
| 2022-04-02 | MDISA SCC Team Race | crew | 1.65 | -1.60 | 2–5 | 5.2 | −3.25 | 6.0 | >99% |
| 2021-11-06 | MASSA Gold Fall Team Championship | crew | 2.43 | 2.83 | 11–1 | 10.7 | +0.40 | 0.1 | 61% |
| 2018-09-29 | Severn School Team Race | crew | 1.32 | 2.25 | 5–1 | 4.6 | +0.94 | 0.2 | 58% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Spring 2022 Team page Season | |||||
| MDISA Team Race Qualifier | Crew | TR | 10 | 100% | — |
| MDISA SCC Varsity | Crew | A | 6 | 4.2 | — |
| MDISA SCC Team Race | Crew | TR | 7 | 29% | — |
| MASSA 2022 Team Race Championship | Crew | TR | 14 | 93% | — |
| Fall 2021 Team page Season | |||||
| MASSA Gold Fall Team Championship | Crew | TR | 18 | 94% | — |
| Fall 2019 Team page Season | |||||
| MDISA JV 1 | Skipper | B | 6 | 9.0 | 0.03 |
| Fall 2018 Team page Season | |||||
| SCC JV regatta | Skipper | B | 5 | 5.4 | 0.89 |
| BCSC 2018 Fall JV | Crew | A | 2 | 2.0 | — |
| League | Name | School | Year |
|---|---|---|---|
| ICSA | Ella May Corckran |  Tulane University |
'26 |
| ISSA | Ella May Corckran |  Key School |
'22 |
| ISSA | Ella May Corckran |  unregistered-massa |
'22 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
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