St. Mary's High School (MD) '30
Crew effect over their career (not scaled to a team): 57.67 league percentile among ISSA crews with 30+ races (uncertainty ±0.115 rating points, on a spread of about 0.04 between crews; 33 races with rated skippers).
| Season | Team | Rating | Range | League percentile |
Team percentile |
On team | Races | Team page |
|---|---|---|---|---|---|---|---|---|
| Spring 2025 | St. Mary's High School (MD) | 0.71 | 53.84 | 58.33 | 3 of 6 | 11 | Team page |
How much better or worse boats do with this sailor crewing than their skipper's rating predicts. The rating is on the skipper scale: the team's skipper average plus the crew's difference from their teammates, multiplied by 18.7 so a team's crews spread out like its skippers. Crews on one team differ far less than skippers do, so the band is about as wide as the spread itself: use the rating to line crews up across teams, not as a ranking within a team. In the Range column the dot is the rating, the shaded band is where it plausibly sits (90% range) and the dashed line is the team's skipper average; a wide band means little evidence. League percentile ranks the rating among all rostered crews in that league and season; team percentile ranks it among the crews on the same team that season (the share of teammates it beats, counting ties as half). Both use the skipper-scale rating, so the league one also reflects how strong the team's skippers are.
| Regatta | Role | Div | Races | Avg |
|---|---|---|---|---|
| Spring 2025 Team page Season | ||||
| MDISA SSPP T2 Fleet | Crew | B | 6 | 6.0 |
| MDISA Gunston Spring '25 T3 | Crew | B | 5 | 2.0 |
| League | Name | School | Year |
|---|---|---|---|
| ISSA | Seth Spiegel |  Maret |
'30 |
| ISSA | Seth Spiegel |  Key School |
'30 |
| ISSA | Seth Spiegel |  Indian Creek School |
'30 |
