Columbia 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: 81.01 percentile among ICSA crews with 30+ races. Uncertainty ±0.087 rating points from 246 races with rated skippers.
How crew ratings work →| Season | Team | Rating | Range | League percentile |
Team percentile |
On team | Races | Team page |
|---|---|---|---|---|---|---|---|---|
| Fall 2026 | Columbia University | 1.51 | 54.14 | 91.67 | 1 of 6 | 36 | Team page | |
| Spring 2026 | Columbia University | 2.80 | 81.29 | 90.00 | 1 of 5 | 56 | Team page | |
| Fall 2025 | Columbia University | 2.17 | 68.84 | 78.57 | 2 of 7 | 65 | Team page | |
| Spring 2025 | Columbia University | 2.33 | 69.00 | 87.50 | 1 of 4 | 33 | Team page | |
| Fall 2024 | Columbia University | 2.57 | 76.08 | 87.50 | 1 of 4 | 13 | 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 |
|---|---|---|---|
| 1.41 | unranked (fewer than 30 matches as skipper, or not active) | +0.00 about what the fleet rating predicts |
as crew 1–13 (7%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2025 | 1 | — | 1–13 |
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 1 graded regattas (14 matches) the record is 1–13 against 2.7 wins the pre-event forecasts expected (−1.7). 0 regattas clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 2 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2025-03-22 | Admiral Moore Team Race | crew | 1.62 | -0.31 | 1–13 | 2.7 | −1.93 | 2.1 | 99% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Fall 2026 Team page Season | |||||
| Yale Women's Women's | Crew | B | 13 | 15.5 | -0.05 |
| Women's Atlantic Coast Championship Finals Women's | Crew | A | 10 | 13.9 | +0.15 |
| Women's Atlantic Coast Championship Round 1 B Women's | Crew | A | 8 | 12.4 | -0.04 |
| KP Women's Invite Women's | Crew | A | 5 | 5.4 | +0.03 |
| Spring 2026 Team page Season | |||||
| Women's Eastern National Semis Women's | Crew | B | 6 | 13.0 | -0.20 |
| St. Mary's Women's Inter-Conference Women's | Crew | B | 14 | 7.5 | +0.14 |
| MAISA Spring Women's Fleet Race Championship Women's | Crew | B | 12 | 7.4 | -0.07 |
| Emily Wick Women's | Crew | A | 14 | 9.2 | +0.12 |
| Diamondback Women's Fleet Race Women's | Crew | A | 10 | 2.0 | -0.06 |
| Fall 2025 Team page Season | |||||
| Women's Regatta at KP Invite Women's | Crew | B | 8 | 4.8 | +0.23 |
| Women's Atlantic Coast Tournament Women's | Crew | A | 12 | 8.8 | +0.12 |
| Tiger Women's Open Women's | Crew | B | 6 | 1.0 | +0.18 |
| MAISA Women's Fall Dinghy Women's | Crew | A | 10 | 10.0 | -0.37 |
| Luce Trophy | Crew | A | 15 | 5.2 | +0.19 |
| CofC Women's Fall Women's | Crew | A | 14 | 6.0 | +0.00 |
| Spring 2025 Team page Season | |||||
| Seawolf Women's Open Women's | Crew | B | 6 | 1.5 | +0.06 |
| MAISA Spring Women's Fleet Race Championship Women's | Crew | A | 15 | 9.4 | +0.08 |
| The Grant | Crew | B | 12 | 4.5 | +0.02 |
| Admiral Moore Team Race | Crew | TR | 14 | 7% | — |
| Fall 2024 Team page Season | |||||
| MAISA Women's Fall Dinghy Women's | Crew | A | 13 | 8.8 | +0.13 |
| League | Name | School | Year |
|---|---|---|---|
| ISSA | Amelia Thomas |  Yorktown High School |
'23 |
| ISSA | Amelia Thomas |  Jackson-Reed High School |
'23 |
| ISSA | Amelia Thomas |  Walt Whitman High School |
'23 |
| ISSA | Amelia Thomas |  Sidwell Friends |
'23 |
| ISSA | Amelia Thomas |  Winston Churchill High School |
'23 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
