GT J24 spring Invitational

# SchoolTeam A TOT
1 Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 2 4 4
2 Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 1 4 4
3 University of Georgia University of Georgia Bulldogs 5 5
4 Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 3 7 7
SchoolTeam R1 R2 TOT
Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 2 2 2 4
Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 1 3 1 4
University of Georgia University of Georgia Bulldogs 1 4 5
Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 3 4 3 7
School Team Sailors
Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 1 SkipperRoberto Martelli '24
CrewCole Woerner '22
Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 2 SkipperTan Tonge '22
CrewShannon McGrane '23
Georgia Institute of Technology Georgia Institute of Technology Yellow Jackets 3 SkipperJared Williams '22
CrewKyle Meyhoefer '21
CrewAvi Goel '25
University of Georgia University of Georgia Bulldogs SkipperSamuel Trimble '24
CrewEdward Ryan '23
CrewMadeline Shepard '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 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  4 boats · 2 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Roberto Martelli '24Georgia Institute of Technology Yellow Jackets 12/20.930.52−0.4171st → 50th0.171%2.0 / 1.9
1Tan Tonge '22Georgia Institute of Technology Yellow Jackets 22/20.231.01+0.7736th → 75th0.446%2.0 / 2.4
3Samuel Trimble '24University of Georgia2/2-0.53-0.46+0.072nd → 3rd0.042%2.5 / 2.9
4Jared Williams '22Georgia Institute of Technology Yellow Jackets 32/2-0.46-0.89−0.433rd → 1st0.184%3.5 / 2.8

Conditions — 04/16/2022 (8am–6pm)

🌦️Light drizzle
Humidity 73%  ·  Pressure 1017.1 hPa

Temperature

68°F
↑ 76°F   ↓ 56°F
Feels like 68°F

Wind

● from   ▲ toward
6.0 kn
avg  ·  max 7.8 kn
Gusts to 16.1 kn
From WSW (240°)

Sky & Precipitation

Cloud cover100% Sunshine5.7 hrs Humidity73% Pressure1017.1 hPa Rain0.15 in

What this breeze does at Georgia Tech — from fleet racing

Breeze: SW about 9 kn (weather reanalysis in the scorer’s units)
In fleet races at Georgia Tech in this breeze: a typical day (−0.01)
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 ±0.01 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 Georgia Tech by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (only 5 labelled days at Georgia Tech, 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 →