Columbia University '28
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 |
|---|---|---|---|
| 0.66 (fleet 0.92) | unranked (fewer than 30 matches as skipper, or not active) | −0.01 ± 0.18 about what the fleet rating predicts |
as skipper 0–10 (0%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2025 | 1 | 0–10 | — |
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 (10 matches) the record is 0–10 against 0.3 wins the pre-event forecasts expected (−0.3). 0 regattas clearly above the rating (P ≤ 20%), 1 clearly below (P ≥ 80%); 0 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2025-04-04 | MCSA Open Team Race Championship | skipper | 0.50 | -2.50 | 0–10 | 0.3 | ≤−3.00 | 0.4 | >99% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Fall 2026 Team page Season | |||||
| Northeast Qualifier 1 | Skipper | A | 3 | 3.7 | 0.56 |
| KP Dinghy Open | Skipper | A | 1 | 3.0 | — |
| Spring 2026 Team page Season | |||||
| Stony Brook Team Race | Skipper | TR | 20 | 55% | — |
| Fall 2025 Team page Season | |||||
| War Memorial | Skipper | A | 8 | 17.8 | -1.20 |
| Stony Brook Fall Open | Skipper | A | 8 | 5.8 | 0.42 |
| NY Maritime Fall Open | Skipper | B | 4 | 7.8 | 0.53 |
| Northeast Qualifier #1 | Skipper | B | 5 | 1.8 | 1.52 |
| Coho Memorial | Skipper | B | 8 | 1.9 | 1.98 |
| League | Name | School | Year |
|---|---|---|---|
| ICSA | Alexander Sau Hang Ching |  Purdue University |
'28 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
