GLIOR T10

# SchoolTeam A TOT
1 Western Michigan University Western Michigan University Broncos 12 12
2 Miami University Miami University Red Hawks 13 13
3 Northwestern University Northwestern University Wildcats 16 16
4 Purdue University Purdue University Boilermakers 22 22
5 Indiana University Indiana University Hoosiers 27 27
SchoolTeam R1 R2 R3 R4 R5 R6 TOT
Western Michigan University Western Michigan University Broncos 3 1 2 2 1 3 12
Miami University Miami University Red Hawks 1 2 3 3 3 1 13
Northwestern University Northwestern University Wildcats 2 3 1 4 2 4 16
Purdue University Purdue University Boilermakers 5 5 5 1 4 2 22
Indiana University Indiana University Hoosiers 4 4 4 5 5 5 27
School Team Sailors
Northwestern University Northwestern University Wildcats SkipperNicholas Chesemore '27
CrewJenna Krinsky '26
CrewKate Virsik '26
CrewLuke Sadalla '28
CrewCora Star '26
CrewSean Bascoe '27
Western Michigan University Western Michigan University Broncos SkipperWilliam O'Haver '27
CrewJack Charlton '27
CrewMarko Nedeljkovic '28
CrewEvan Simpson '26
CrewNatalie Scherf '27
CrewKate Heaman '28

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 keelboat rating rather than the fleet rating: 0.41 × the skipper's fleet rating from the week before the event (unrated skippers start at 0.47); 0.28 × the mean fleet rating of the rated crew aboard; the skipper's own keelboat offset; the school's program effect. Non-finishes (OCS, DNF and similar) are left out of the fitting, as in the rating model.

Percentile places a rating among the 207 ICSA sailors with a keelboat 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 keelboat 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  5 boats · 6 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1William O'Haver '27Western Michigan University6/6-0.241.80+2.047th → 96th7.74%2.0 / 3.5
3Nicholas Chesemore '27Northwestern University6/61.070.78−0.2977th → 63rd0.265%2.7 / 2.5

Conditions — 09/06/2025 (8am–6pm)

☁️Overcast
Humidity 47%  ·  Pressure 1017.0 hPa

Temperature

61°F
↑ 65°F   ↓ 51°F
Feels like 55°F

Wind

● from   ▲ toward
8.4 kn
avg  ·  max 11.0 kn
Gusts to 26.0 kn
From W (273°)

Sky & Precipitation

Cloud cover59% Sunshine7.6 hrs Humidity47% Pressure1017.0 hPa

What this breeze does at Northwestern — from fleet racing

Breeze: W about 11 kn (weather reanalysis in the scorer’s units)
In fleet races at Northwestern in this breeze: a favourites’ day (+0.09)
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 ±0.09 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 Northwestern by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (17 labelled fleet-race days at Northwestern).

From the notes

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

All notes →