NWISA Keelboat Championships

# SchoolTeam A TOT
1 Ballard High School Ballard High School Beavers 18 18
2 Bainbridge High School Bainbridge High School Spartans 20 20
3 The Downtown School The Downtown School Sockeye Salmon 21 21
4 Lincoln High School - Portland, OR Lincoln High School - Portland, OR Cardinals 32 32
5 Oak Harbor High School Oak Harbor High School Wildcats 33 33
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 TOT
Ballard High School Ballard High School Beavers 1 1 2 BYE 1 2 1 2 BYE 4 18
Bainbridge High School Bainbridge High School Spartans 2 3 1 2 BYE 1 3 1 3 BYE 20
The Downtown School The Downtown School Sockeye Salmon BYE 2 4 1 3 BYE 2 3 1 1 21
Lincoln High School - Portland, OR Lincoln High School - Portland, OR Cardinals 4 4 BYE 3 4 3 4 BYE 2 2 32
Oak Harbor High School Oak Harbor High School Wildcats 3 BYE 3 4 2 4 BYE 4 4 3 33
School Team Sailors
Bainbridge High School Bainbridge High School Spartans SkipperBen Stone '23
CrewBeto Torres '24
CrewRyan Downey '25
CrewAva Bergan '23
Ballard High School Ballard High School Beavers SkipperArden Rathopf '23
CrewSimone Ford '24
CrewSam Airhart '23
CrewPhoebe Howe '24
Lincoln High School - Portland, OR Lincoln High School - Portland, OR Cardinals SkipperTeddy Gao '23
CrewAndrew Dolle '25
CrewJocelyn Emery '26
CrewZack Riccelli '23
Oak Harbor High School Oak Harbor High School Wildcats SkipperAnna Servatius '24
CrewDominic Schinning '25
CrewAllison Bailey '23
CrewHannah Ellis '24
The Downtown School The Downtown School Sockeye Salmon SkipperFrancesca Dougherty '25
CrewKyle Gustafson '24
CrewEnzo Dougherty '23
CrewMia McNabb '24

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 78 ISSA 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 · 10 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Arden Rathopf '23Ballard High School10/100.391.56+1.1731st → 94th2.925%2.6 / 3.1
2Ben Stone '23Bainbridge High School10/101.101.22+0.1377th → 88th0.071%2.8 / 2.5
3Francesca Dougherty '25The Downtown School10/100.501.02+0.5237th → 74th0.745%2.9 / 3.0
4Teddy Gao '23Lincoln High School - Portland, OR10/100.69-0.43−1.1354th → 1st3.492%3.8 / 2.8
5Anna Servatius '24Oak Harbor High School10/10-0.02-0.34−0.324th → 1st0.371%3.9 / 3.5

Conditions — 09/24/2022 (8am–6pm)

☁️Overcast
Humidity 76%  ·  Pressure 1024.1 hPa

Temperature

62°F
↑ 65°F   ↓ 54°F
Feels like 60°F

Wind

● from   ▲ toward
6.8 kn
avg  ·  max 7.9 kn
Gusts to 17.9 kn
From WNW (300°)

Sky & Precipitation

Cloud cover77% Sunshine8.2 hrs Humidity76% Pressure1024.1 hPa

What this breeze does at Oak Harbor — from fleet racing

Breeze: NW about 9 kn (weather reanalysis in the scorer’s units)
In fleet races at Oak Harbor 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 Oak Harbor by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (only 7 labelled days at Oak Harbor, 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 →