SAISA Cressy Qual - ILCA 7

SchoolSailor R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 TOT
Lucy Beckham High School Lucy Beckham High School Nathan Pine '26 2 1 1 1 3 2 4 3 3 2 1 1 4 2 1 31
Immaculata La Salle High School Immaculata La Salle High School Beck Brill '27 1 3 3 2 2 1 1 2 5 1 2 3 1 1 6 34
Porter-Gaud School Porter-Gaud School Will Martin '29 4 2 2 3 1 5 5 4 6 3 5 4 2 3 7 56
MAST Academy MAST Academy Oliver Holt '26 3 5 4 5 4 4 2 5 4 6 6 5 5 7 4 69
Gulliver Preparatory School Gulliver Preparatory School Alfonso Lanseros '27 7 6 6 4 6 DNF 6 6 1 4 4 2 3 5 5 74
Porter-Gaud School Porter-Gaud School Granger Osborne '26 6 4 7 DNS 5 3 3 1 7 7 8 8 6 6 2 82
St. Augustine High School (FL) St. Augustine High School (FL) Keegan Skipper '28 8 7 5 7 8 7 8 DNF 2 5 3 6 DNF 4 3 91
Lucy Beckham High School Lucy Beckham High School Coleman Emrich '27 5 8 8 6 7 6 7 7 8 8 7 7 7 8 8 107

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.

  • u no fleet rating — the model's level for unrated skippers is the baseline.

Division A  8 boats · 15 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Nathan Pine '26Lucy Beckham High School Bengals 215/153.474.16+0.6899th → 99th1.612%2.1 / 2.9
2Beck Brill '27Immaculata La Salle High School15/153.033.95+0.9298th → 99th3.06%2.3 / 3.5
3Will Martin '29Porter-Gaud School Cyclones 115/152.27u2.72+0.4588th → 95th0.932%3.7 / 4.3
4Oliver Holt '26MAST Academy15/152.631.99−0.6494th → 83rd2.175%4.6 / 3.9
5Alfonso Lanseros '27Gulliver Preparatory School15/152.281.94−0.3488th → 82nd0.575%4.9 / 4.3
6Granger Osborne '26Porter-Gaud School Cyclones 215/151.401.35−0.0570th → 68th0.059%5.5 / 5.2
7Keegan Skipper '28St. Augustine High School (FL)15/150.99u0.74−0.2558th → 47th0.264%6.1 / 5.7
8Coleman Emrich '27Lucy Beckham High School Bengals 115/150.42-0.05−0.4734th → 20th0.785%7.1 / 6.3

Conditions — 10/04/2025 (8am–6pm)

☀️Clear sky
Humidity 55%  ·  Pressure 1013.1 hPa

Temperature

79°F
↑ 84°F   ↓ 68°F
Feels like 76°F

Wind

● from   ▲ toward
13.0 kn
avg  ·  max 15.2 kn
Gusts to 30.9 kn
From S (179°)

Sky & Precipitation

Cloud cover1% Sunshine10.7 hrs Humidity55% Pressure1013.1 hPa

What this breeze does at James Island Charter School — from fleet racing

Breeze: S about 14 kn (weather reanalysis in the scorer’s units)
In fleet races at James Island Charter School in this breeze: a favourites’ day (+0.05)
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 ±0.05 means a rating gap counts about 4% 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 James Island Charter School by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (no labelled days at James Island Charter School: the all-venue pattern is shown).

From the notes

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

All notes →