SAISA Women's Singlehanded Championship

SchoolSailor R1 R2 R3 R4 R5 R6 R7 TOT
Jacksonville University Jacksonville University Charlotte Rose '22 1 1 1 1 1 1 1 7
University of Miami University of Miami Marina Geilen '25 2 2 2 2 2 3 5 18
Jacksonville University Jacksonville University Emily Allen '25 3 3 5 4 4 4 4 27
Eckerd College Eckerd College Eden Nykamp '25 4 4 3 5 3 2 6 27
Jacksonville University Jacksonville University Maartje Van Dam '23 5 5 6 3 7 7 2 35
University of South Florida University of South Florida Heidi Hicks '25 7 7 4 7 5 6 3 39
University of South Florida University of South Florida Emma Shakespeare '24 6 6 7 6 6 5 7 43

Performance rating asks, for each skipper: holding every other boat fixed, which rating makes my actual race-by-race finishes least surprising? Boats are valued with the singlehanded rating rather than the fleet rating: 0.79 × the skipper's fleet rating from the week before the event (unrated skippers start at 1.11); the skipper's own singlehanded offset. Strength differences are scaled by 0.80 before they become probabilities, the value that calibrates the model on seasons it had not seen. Non-finishes (OCS, DNF and similar) are left out of the fitting, as in the rating model.

Percentile places a rating among the 309 ICSA sailors with a singlehanded rating who raced the discipline in the last three seasons. Surprise is how many bits more surprising the finishes were at the pre-event rating than at the performance rating. P(this good or better) simulates the event 3,000 times at the pre-event ratings, with the same regatta-form model as the fleet analysis pages, and reports how often the skipper would score this many points or fewer in the races they sailed.

The singlehanded offsets are the current ones (the discipline files keep no weekly history), so a skipper's own offset has already seen this event; offsets are shrunk hard, so the effect is a few hundredths at most. Only skippers are rated.

Division A  7 boats · 7 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Charlotte Rose '22Jacksonville University Fins 27/73.968.75++4.7995th → 99th8.1<1%1.0 / 2.4
2Marina Geilen '25University of Miami7/71.953.69+1.7450th → 93rd4.97%2.6 / 4.3
3Eden Nykamp '25Eckerd College7/72.212.54+0.3358th → 66th0.245%3.9 / 4.1
3Emily Allen '25Jacksonville University Fins 17/72.182.64+0.4657th → 69th0.545%3.9 / 4.1
5Maartje Van Dam '23Jacksonville University Fins 37/71.931.39−0.5449th → 34th0.674%5.0 / 4.3
6Heidi Hicks '25University of South Florida Bulls 27/71.520.97−0.5538th → 22nd0.580%5.6 / 4.8
7Emma Shakespeare '24University of South Florida Bulls 17/72.300.70−1.6060th → 17th6.398%6.1 / 4.0

Conditions — 09/18/2021 (8am–6pm)

🌦️Light drizzle
Humidity 80%  ·  Pressure 1018.3 hPa

Temperature

81°F
↑ 84°F   ↓ 75°F
Feels like 88°F

Wind

● from   ▲ toward
6.2 kn
avg  ·  max 8.6 kn
Gusts to 16.3 kn
From ENE (64°)

Sky & Precipitation

Cloud cover55% Sunshine10.7 hrs Humidity80% Pressure1018.3 hPa Rain0.30 in

What this breeze does at Charleston — from fleet racing

Breeze: NE about 9 kn (weather reanalysis in the scorer’s units)
In fleet races at Charleston in this breeze: a typical day (−0.01)
Nothing in this breeze favours either side in fleet racing here: results follow the ratings about as usual.

Orderliness is how tightly a fleet race’s finishing order follows the pre-regatta ratings, relative to a typical event (0): positive is the favourites’ day, negative the underdogs’. A value of ±0.01 means a rating gap counts about 1% less than on a typical day. This event is not a fleet race the rating model scores, so there is no actual value for it: this is what this venue’s fleet racing history says about the breeze on the day, read off the chart at the star. How this is estimated · compare venues.

Orderliness beyond the fleet at Charleston by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (69 labelled fleet-race days at Charleston).

From the notes

Short write-ups of what the ratings and results show, with the numbers and how they were computed.

All notes →