Birmingham Public Schools '30
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: 34.96 percentile among ISSA crews with 30+ races. Uncertainty ±0.115 rating points from 22 races with rated skippers. Few races, so the estimate stays near the middle.
How crew ratings work →Includes linked high school and college seasons.
| Season | Team | Rating | Range | League percentile |
Team percentile |
On team | Races | Team page |
|---|---|---|---|---|---|---|---|---|
| Fall 2025 | Detroit Country Day School | -0.66 | 16.22 | 25.00 | 5 of 6 | 10 | Team page |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Fall 2026 Team page Season | |||||
| 2026 MISSA NE Great Lakes Qualifier & State Champs | Crew | B | 11 | 5.5 | -0.46 |
| 2026 MISSA East Great Oaks Qualfier | Skipper | A | 9 | 9.4 | -0.56 |
| 2026 MISSA CSS #1 | Skipper | B | 5 | 10.4 | -0.22 |
| League | Name | School | Year |
|---|---|---|---|
| ISSA | Ethan Polyak |  Detroit Country Day School |
'30 |
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