Georgetown University '27
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: 44.51 percentile among ICSA crews with 30+ races. Uncertainty ±0.103 rating points from 86 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 2023 | St. Ignatius College Prep, Chicago, IL | 1.10 | 39.99 | 68.75 | 3 of 8 | 27 | Team page |
Each discipline has its own scale, built from the sailor's main rating and their results in that discipline. The numbers are not comparable with the main rating or with each other.
How these ratings work →| Discipline | Rating | Rank | Races | Last raced |
|---|---|---|---|---|
| Keelboat | 0.71 | unranked (fewer than 10 races or not active) | 7 | Fall 2022 |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Fall 2026 Team page Season | |||||
| Chesapeake Open | Skipper | A | 1 | 7.0 | — |
| Spring 2026 Team page Season | |||||
| America Trophy | Crew | B | 2 | 6.5 | -0.17 |
| Fall 2025 Team page Season | |||||
| Tom Curtis Memorial Regatta | Skipper | A | 2 | 15.0 | 1.29 |
| Spring 2025 Team page Season | |||||
| Navy Team Race Invitiational | Skipper | TR | 12 | 67% | — |
| Graham Hall Team Race | Crew | TR | 15 | 87% | — |
| Arrigan Memorial Regatta | Skipper | B | 1 | 11.0 | — |
| Fall 2024 Team page Season | |||||
| Chesapeake Open | Skipper | A | 8 | 13.1 | 0.32 |
| Spring 2024 Team page Season | |||||
| Arrigan Memorial Regatta | Crew | A | 5 | 9.6 | +0.30 |
| Fall 2023 Team page Season | |||||
| Tom Curtis Memorial Regatta | Crew | A | 7 | 15.3 | +0.00 |
| League | Name | School | Year |
|---|---|---|---|
| ISSA | Jack Duffy |  Saint Ignatius College Prep, Chicago, IL |
'23 |
| ISSA | Jack Duffy |  New Trier HS |
'23 |
