Mamaroneck High School '24
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: 88.58 percentile among ICSA crews with 30+ races. Uncertainty ±0.111 rating points from 39 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 | Stanford University | 5.25 | 98.77 | 83.33 | 2 of 9 | 39 | 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 |
|---|---|---|---|
| 2.07 (fleet 3.46) | 35 of 231 | −0.07 ± 0.17 about what the fleet rating predicts |
as skipper 15–27 (36%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2025 | 2 | 8–11 | — |
| Spring 2023 | 1 | 3–11 | — |
| Fall 2021 | 1 | 4–5 | — |
Rating before each regatta driven (solid; dots green when the boat won 60% or more of its matches there, red under 40%) and what the fleet rating alone would give (dashed). The gap is the team race offset as it stood at the time. Hover a dot for the regatta; click to open it.
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 4 graded regattas (42 matches) the record is 15–27 against 17.8 wins the pre-event forecasts expected (−2.8). 0 regattas clearly above the rating (P ≤ 20%), 3 clearly below (P ≥ 80%); 1 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2025-05-03 | NESSA Team Racing Championship (Presidents Trophy) | skipper | 2.17 | 1.62 | 5–9 | 6.0 | −0.55 | 0.3 | 84% |
| 2025-04-30 | FCSL 2025 Gold Cup | skipper | 2.07 | 2.04 | 3–2 | 3.0 | −0.02 | 0.0 | 70% |
| 2023-05-06 | NESSA Team Racing Championship (Presidents Trophy) | skipper | 1.78 | 1.17 | 3–11 | 4.1 | −0.61 | 0.4 | 85% |
| 2021-10-23 | NYISA-SE Team Race Championship | skipper | 1.59 | 0.96 | 4–5 | 4.7 | −0.63 | 0.2 | 84% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Spring 2022 Team page Season | |||||
| NYISA-SE League Fleet Race Championship | Skipper | A | 6 | 2.7 | 1.14 |
| NYISA-SE Icebreaker Regatta | Skipper | A | 6 | 2.3 | 2.44 |
| NYISA-SE 2022 SUNY Invitational | Skipper | A | 6 | 5.3 | 1.17 |
| MASSA Fleet Championship and Mallory Qualifier | Skipper | A | 6 | 11.3 | 0.23 |
| Fall 2021 Team page Season | |||||
| NYISA-SE Team Race Championship | Skipper | TR | 9 | 44% | — |
| League | Name | School | Year |
|---|---|---|---|
| ICSA | Callie Hammond |  Stanford University |
'29 |
| ISSA | Callie Hammond |  Greenwich Academy |
'25 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
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