U. S. Merchant Marine Academy '21
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: 58.69 percentile among ICSA crews with 30+ races. Uncertainty ±0.109 rating points from 45 races with rated skippers.
How crew ratings work →No season rating yet: needs 8+ crewed races in a season.
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 |
|---|---|---|---|---|
| Singlehanded | 2.34 | unranked (fewer than 10 races or not active) | 126 | Spring 2021 |
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 |
|---|---|---|---|
| 2.00 (fleet 2.76) | unranked (fewer than 30 matches as skipper, or not active) | +0.00 ± 0.18 about what the fleet rating predicts |
as skipper 13–45 (22%) as crew 9–28 (24%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2021 | 1 | 1–7 | — |
| Spring 2019 | 3 | 12–38 | — |
| Spring 2018 | 4 | — | 9–28 |
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 8 graded regattas (95 matches) the record is 22–73 against 22.6 wins the pre-event forecasts expected (−0.6). 1 regatta clearly above the rating (P ≤ 20%), 4 clearly below (P ≥ 80%); 6 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2021-06-02 | 2021 College Sailing Team Race Nationals | skipper | 2.24 | 1.69 | 1–7 | 1.6 | −0.55 | 0.2 | 83% |
| 2019-03-30 | Team Race Challenge | skipper | 2.51 | 3.36 | 10–7 | 8.0 | +0.85 | 1.2 | 15% |
| 2019-03-23 | Aaron Szambecki Team Race | skipper | 2.38 | 2.80 | 2–16 | 1.4 | +0.42 | 0.2 | 41% |
| 2019-03-16 | Graham Hall | skipper | 2.34 | -0.66 | 0–15 | 0.4 | ≤−3.00 | 0.6 | >99% |
| 2018-03-31 | Team Race Challenge | crew | 2.79 | -0.21 | 0–3 | 1.5 | ≤−3.00 | 2.8 | >99% |
| 2018-03-24 | Aaron Szambecki Team Race | crew | 2.77 | 2.56 | 3–11 | 3.5 | −0.21 | 0.1 | 73% |
| 2018-03-17 | Graham Hall Team Race | crew | 2.57 | 2.76 | 5–10 | 4.6 | +0.19 | 0.1 | 52% |
| 2018-03-03 | GW Team Race | crew | 1.86 | 0.34 | 1–4 | 1.6 | −1.52 | 0.7 | 98% |
| Regatta | Role | Div | Races | Avg | Rating |
|---|---|---|---|---|---|
| Spring 2021 Team page Season | |||||
| Men's Open Singlehanded National Championship Singlehanded | Skipper | A | 14 | 22.1 | 2.91 |
| 2021 Gill College Sailing Coed Nationals | Skipper | B | 6 | 14.0 | 2.34 |
| 2021 College Sailing Team Race Nationals | Skipper | TR | 16 | 12% | — |
| Fall 2020 Team page Season | |||||
| Superintendents' Trophy - Dinghy | Skipper | A | 10 | 13.6 | 1.83 |
| Fall 2019 Team page Season | |||||
| War Memorial | Skipper | B | 10 | 8.1 | 2.94 |
| Moody Trophy | Skipper | B | 13 | 10.1 | 2.90 |
| MAISA Laser Elimination Singlehanded | Skipper | A | 14 | 6.9 | 3.17 |
| Laser North Singlehanded | Skipper | A | 8 | 7.4 | 2.65 |
| Coed Showcase Qualifier B | Crew | B | 12 | 12.9 | — |
| Carl Van Duyne MAISA Men's Singles Singlehanded | Skipper | A | 14 | 8.8 | 3.12 |
| Captain Hurst Bowl | Skipper | A | 4 | 9.2 | 3.74 |
| Coed Showcase Tournament | Skipper | B | 8 | 9.6 | 2.59 |
| Spring 2019 Team page Season | |||||
| Team Race Challenge | Skipper | TR | 17 | 59% | — |
| Navy Spring | Skipper | B | 14 | 8.9 | 3.09 |
| Graham Hall | Skipper | TR | 15 | 0% | — |
| Gill Coed Eastern Semifinals | Skipper | B | 13 | 11.9 | 2.52 |
| Drexel Open | Crew | A | 8 | 5.4 | — |
| America Trophy | Skipper | B | 12 | 12.4 | 2.11 |
| Admiral's Cup | Skipper | B | 16 | 12.9 | 2.76 |
| Aaron Szambecki Team Race | Skipper | TR | 18 | 11% | — |
| Fall 2018 Team page Season | |||||
| War Memorial | Crew | B | 14 | 9.6 | — |
| Truxtun Umsted Coed Showcase | Skipper | B | 12 | 11.2 | 2.55 |
| NY Maritime Fall Open | Skipper | A | 12 | 5.3 | 2.52 |
| Moody Trophy | Crew | B | 5 | 8.4 | — |
| MAISA Laser Elimination Singlehanded | Skipper | A | 13 | 2.7 | 3.97 |
| Laser North Qualifier Singlehanded | Skipper | A | 13 | 7.6 | 2.42 |
| David Lee Arnoff Trophy | Skipper | B | 7 | 4.6 | 2.72 |
| Carl Van Duyne MAISA Men's Singles Singlehanded | Skipper | A | 13 | 10.4 | 2.16 |
| Spring 2018 Team page Season | |||||
| Team Race Challenge | Crew | TR | 15 | 53% | — |
| GW Team Race | Crew | TR | 5 | 20% | — |
| Greater NY Dinghy Regatta | Skipper | A | 10 | 3.9 | 3.23 |
| Graham Hall Team Race | Crew | TR | 15 | 33% | — |
| Engineers' Cup | Crew | A | 10 | 2.2 | — |
| Aaron Szambecki Team Race | Crew | TR | 14 | 21% | — |
| Fall 2017 Team page Season | |||||
| Truxtun Umsted | Skipper | D | 13 | 7.6 | 3.63 |
| Rose Bowl Regatta 2018 | Crew | A | 4 | 7.0 | — |
| NY Maritime Fall Open | Skipper | A | 7 | 9.7 | 2.17 |
| Laser North Singlehanded | Skipper | A | 12 | 5.4 | 2.73 |
| Carl Van Duyne - MAISA Singles Singlehanded | Skipper | A | 14 | 13.9 | 1.77 |
| League | Name | School | Year |
|---|---|---|---|
| ISSA | Luke Welker |  Westminster Academy |
'17 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
