NESSA Healy Trophy - ILCA 6 GIRLS

SchoolSailor R1 R2 R3 R4 R5 TOT
Tabor Academy Tabor Academy Abby Wei '27 1 3 1 2 1 8
North Kingstown High School North Kingstown High School Alice Dunning '25 2 1 2 1 4 10
Cape Elizabeth High School Cape Elizabeth High School Tess Straw '24 3 4 4 4 3 18
St. George's School St. George's School Amelon Rule '26 DNF 2 3 3 2 18
Mercy High School (CT) Mercy High School (CT) Kayla Johnson '25 5 5 5 DNF DNS 31
Greenwich Country Day School Greenwich Country Day School Mary Chickering '27 4 7 6 DNF DNS 33
Sacred Heart Greenwich Sacred Heart Greenwich Caitlin Dean '26 6 6 DNF DNF DNS 36

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 495 ISSA 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 · 5 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Abby Wei '27Tabor Academy5/52.803.60+0.8096th → 99th0.623%1.6 / 2.4
2Alice Dunning '25North Kingstown High School5/50.852.75+1.9152nd → 95th2.92%2.0 / 4.2
3Amelon Rule '26St. George's School5/52.622.03−0.5994th → 83rd0.386%3.6 / 2.6
3Tess Straw '24Cape Elizabeth High School5/50.591.16+0.5742nd → 63rd0.426%3.6 / 4.4
5Kayla Johnson '25Mercy High School (CT)5/50.090.22+0.1324th → 28th0.091%6.2 / 4.9
6Mary Chickering '27Greenwich Country Day School5/50.22-1.55−1.7728th → 1st1.898%6.6 / 4.8
7Caitlin Dean '26Sacred Heart Greenwich5/50.38-1.37−1.7633rd → 1st1.6>99%7.2 / 4.6

Conditions — 09/23/2023 (8am–6pm)

🌧️Moderate rain
Humidity 92%  ·  Pressure 1023.8 hPa

Temperature

59°F
↑ 60°F   ↓ 58°F
Feels like 56°F

Wind

● from   ▲ toward
10.8 kn
avg  ·  max 13.8 kn
Gusts to 27.0 kn
From ENE (62°)

Sky & Precipitation

Cloud cover100% Sunshine0.0 hrs Humidity92% Pressure1023.8 hPa Rain1.28 in

What this breeze does at Hyannis YC — from fleet racing

Breeze: NE about 12 kn (weather reanalysis in the scorer’s units)
In fleet races at Hyannis YC in this breeze: a favourites’ day (+0.07)
Favourites’ conditions: in fleet racing here the results follow the ratings more closely than usual, and the top seeds hold their places.

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 ±0.07 means a rating gap counts about 7% more 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 Hyannis YC by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (only 3 labelled days at Hyannis YC, so the surface is mostly the all-venue pattern).

From the notes

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

All notes →