Norfolk Collegiate School '22
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: 20.98 percentile among ICSA crews with 30+ races. Uncertainty ±0.103 rating points from 56 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 |
|---|---|---|---|---|---|---|---|---|
| Fall 2022 | North Carolina State University | 0.29 | 23.01 | 22.73 | 9 of 11 | 21 | 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 | 1.23 | unranked (fewer than 10 races or not active) | 2 | Fall 2024 |
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 |
|---|---|---|---|
| 1.84 (fleet 2.99) | unranked (fewer than 30 matches as skipper, or not active) | −0.01 ± 0.17 about what the fleet rating predicts |
as skipper 100–66 (60%) |
| Season | Regattas | Skipper W–L | Crew W–L |
|---|---|---|---|
| Spring 2022 | 3 | 22–13 | — |
| Fall 2021 | 4 | 38–13 | — |
| Spring 2021 | 2 | 15–11 | — |
| Fall 2019 | 3 | 10–5 | — |
| Spring 2019 | 2 | 4–6 | — |
| Spring 2018 | 1 | 7–7 | — |
| Fall 2017 | 1 | 2–5 | — |
| Spring 2017 | 1 | 2–6 | — |
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 16 graded regattas (165 matches) the record is 99–66 against 93.3 wins the pre-event forecasts expected (+5.7). 3 regattas clearly above the rating (P ≤ 20%), 4 clearly below (P ≥ 80%); 11 bits of surprise in all.
| Date | Regatta | Role | Value | Perf. | Record | Exp. wins |
Δ | Surprise (bits) |
P(this good or better) |
|---|---|---|---|---|---|---|---|---|---|
| 2022-05-21 | National Invitational Tournament (NIT) | skipper | 2.42 | 1.90 | 7–6 | 8.1 | −0.53 | 0.3 | 84% |
| 2022-04-30 | MASSA 2022 Team Race Championship | skipper | 2.32 | 2.04 | 8–6 | 8.5 | −0.28 | 0.1 | 75% |
| 2022-04-23 | VISA Team Championship | skipper | 2.30 | 4.44 | 7–1 | 5.0 | +2.14 | 2.2 | 10% |
| 2021-11-06 | MASSA Gold Fall Team Championship | skipper | 2.12 | 3.36 | 13–5 | 10.2 | +1.24 | 1.9 | 9% |
| 2021-10-23 | VISA Team Race Championship and Qualifier | skipper | 2.21 | 2.24 | 9–3 | 8.9 | +0.04 | 0.0 | 64% |
| 2021-10-09 | VISA NA Team Race Regatta 2 | skipper | 2.25 | 1.40 | 8–3 | 8.8 | −0.85 | 0.4 | 89% |
| 2021-09-25 | VISA Norfolk Academy Team Race Regatta | skipper | 2.06 | 3.12 | 8–2 | 6.6 | +1.05 | 0.8 | 27% |
| 2021-04-24 | MASSA Baker Team Race Qualifiers | skipper | 1.95 | 1.81 | 12–8 | 12.4 | −0.14 | 0.0 | 69% |
| 2021-04-17 | VISA Team Race Championship and Qualifier | skipper | 1.84 | 0.11 | 3–3 | 4.5 | −1.73 | 1.5 | 98% |
| 2019-11-02 | MASSA Team Race Championship | skipper | 1.17 | 2.39 | 3–1 | 2.2 | +1.22 | 0.5 | 38% |
| 2019-10-12 | VISA NCS Team Race Championship | skipper | 1.29 | 1.60 | 5–3 | 4.7 | +0.31 | 0.1 | 56% |
| 2019-09-19 | VISA Southside Team Race | skipper | 1.23 | 2.02 | 2–1 | 1.6 | +0.79 | 0.2 | 53% |
| 2019-04-06 | VISA NCS Team Race Championship | skipper | 1.08 | 0.87 | 3–6 | 3.2 | −0.21 | 0.0 | 73% |
| 2018-05-12 | VISA 2v2 Team Race Regatta | skipper | 0.85 | 2.23 | 7–7 | 4.2 | +1.37 | 2.3 | 7% |
| 2017-10-14 | VISA Team Race Championship | skipper | 0.61 | 1.63 | 2–5 | 1.2 | +1.02 | 0.5 | 33% |
| 2017-04-22 | VISA HRA 2v2 Team Race Regatta | skipper | 0.37 | -0.52 | 2–6 | 3.1 | −0.89 | 0.5 | 89% |
| League | Name | School | Year |
|---|---|---|---|
| ICSA | Robert Chase |  North Carolina State University |
'26 |
| ISSA | Robert Chase |  Phoebus High School |
'22 |
| ISSA | Robert Chase |  Maury High School |
'22 |
| ISSA | Robert Chase |  Poquoson High School |
'22 |
Short write-ups of what the ratings and results show, with the numbers and how they were computed.
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