The Burke Thomas Trophy - ILCA 7

SchoolSailor R1 R2 R3 R4 R5 R6 R7 R8 R9 TOT
Inglemoor High School Inglemoor High School Hannah Beaver '25 5 5 3 1 1 1 1 1 1 19
Garfield High School Garfield High School Kairo Zimmerman Goad '25 1 1 4 4 4 4 3 2 2 25
Bainbridge High School Bainbridge High School Joseph Tappen '25 4 3 1 3 3 3 2 4 4 27
Olympia High School Olympia High School Liam Power '25 6 2 5 2 2 2 4 6 3 32
Capital High School Capital High School Alden Visser '27 3 4 6 5 5 6 6 3 5 43
Olympia High School Olympia High School Liam Taylor '25 2 6 2 6 6 5 5 5 DNS 45
Anacortes High School Anacortes High School Aeden Peterson '25 7 7 7 7 DNF DNS DNS DNS DNS 68

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.

  • — in the performance column: last in every race sailed, so no finite least-surprisal rating exists.

Division A  7 boats · 9 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Hannah Beaver '25Inglemoor High School9/91.712.26+0.5578th → 88th0.615%2.1 / 3.0
2Kairo Zimmerman Goad '25Garfield High School9/90.661.71+1.0544th → 78th2.513%2.8 / 4.1
3Joseph Tappen '25Bainbridge High School9/90.881.52+0.6453rd → 74th1.024%3.0 / 3.8
4Liam Power '25Olympia High School Bears 19/90.830.88+0.0551st → 53rd0.041%3.6 / 3.9
5Alden Visser '27Capital High School9/90.25-0.14−0.3929th → 18th0.462%4.8 / 4.5
6Liam Taylor '25Olympia High School Bears 29/90.680.03−0.6545th → 23rd1.181%5.0 / 4.1
7Aeden Peterson '25Anacortes High School9/90.09——24th → —7.0>99%7.6 / 4.7

Conditions — 09/14/2024 (8am–6pm)

🌦️Light drizzle
Humidity 85%  ·  Pressure 1012.5 hPa

Temperature

61°F
↑ 66°F   ↓ 57°F
Feels like 60°F

Wind

● from   ▲ toward
5.5 kn
avg  ·  max 7.2 kn
Gusts to 14.2 kn
From S (185°)

Sky & Precipitation

Cloud cover82% Sunshine7.0 hrs Humidity85% Pressure1012.5 hPa Rain0.21 in

What this breeze does at Ballard — from fleet racing

Breeze: S about 8 kn (weather reanalysis in the scorer’s units)
In fleet races at Ballard in this breeze: a typical day (−0.00)
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 ±0.00 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 Ballard by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (no labelled days at Ballard: 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 →