Walt Whitman High School '24
Crew effect over their career (not scaled to a team): 87.80 league percentile among ICSA crews with 30+ races (uncertainty ±0.100 rating points, on a spread of about 0.04 between crews; 143 races with rated skippers).
Includes seasons from this sailor's linked profile (high school and college), so the rating follows them across schools.
| Season | Team | Rating | Range | League percentile |
Team percentile |
On team | Races | Team page |
|---|---|---|---|---|---|---|---|---|
| Fall 2025 | University of Wisconsin | 2.32 | 71.81 | 76.67 | 4 of 15 | 26 | Team page | |
| Fall 2024 | University of Wisconsin | 2.60 | 76.20 | 86.84 | 3 of 19 | 43 | Team page | |
| Spring 2024 | Jackson-Reed High School | 2.23 | 67.50 | 87.50 | 1 of 4 | 23 | Team page | |
| Fall 2023 | Jackson-Reed High School | 1.64 | 53.06 | 83.33 | 1 of 3 | 24 | 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 |
|---|---|---|---|---|
| Fall 2019 Team page Season | ||||
| MDISA JV @ DC Sail | Crew | A | 3 | 9.0 |
| MDISA JV 1 | Crew | A | 4 | 5.0 |
| League | Name | School | Year |
|---|---|---|---|
| ICSA | Caitlin Costello |  University of Wisconsin |
'28 |
| ISSA | Caitlin Costello |  Jackson-Reed High School |
'24 |
| ISSA | Caitlin Costello |  Robinson Secondary |
'24 |
| ISSA | Caitlin Costello |  Episcopal High School |
'24 |
| ISSA | Caitlin Costello |  Yorktown High School |
'24 |
| ISSA | Caitlin Costello |  Bethesda - Chevy Chase HS |
'24 |
