SEISA Match Race Championship

# SchoolTeam A TOT
1 Tulane University Tulane University Green Wave 1 1
2 Texas A&M University at Galveston Texas A&M University at Galveston Aggies 2 2
3 Texas A&M University Texas A&M University Aggies 3 3
4 University of Texas University of Texas Longhorns 4 4
5 University of North Texas University of North Texas North Texas 5 5
SchoolTeam R1 TOT
Tulane University Tulane University Green Wave 1 1
Texas A&M University at Galveston Texas A&M University at Galveston Aggies 2 2
Texas A&M University Texas A&M University Aggies 3 3
University of Texas University of Texas Longhorns 4 4
University of North Texas University of North Texas North Texas 5 5
School Team Sailors
Texas A&M University Texas A&M University Aggies SkipperRobert Long '12
CrewKerry Pelton '13
CrewColin Feik '13
CrewVictoria Garibay '15
Texas A&M University at Galveston Texas A&M University at Galveston Aggies SkipperCollin Weston '13
CrewMegan Chan Chow '13
CrewMichael Sager '15
CrewColeman Terrell '14
Tulane University Tulane University Green Wave SkipperPhilip Krause '13
CrewLee Evans '13
CrewSusan Herndon '15
CrewMichael Swanson '16
University of North Texas University of North Texas North Texas SkipperRyan Schwend '13
CrewCasey Crossland '13
CrewSabina Nolasco Franco '16
University of Texas University of Texas Longhorns SkipperMatt Lenz '13
CrewKelly Troy '13
CrewMasie Comen '15
CrewMarissa Morrison '15

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.

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

Division A  5 boats · 1 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Philip Krause '13Tulane University1/10.817.00++6.1965th → 99th1.927%1.0 / 2.6
2Collin Weston '13Texas A&M University at Galveston1/11.071.40+0.3377th → 88th0.057%2.0 / 2.4
3Robert Long '12Texas A&M University1/10.280.60+0.3238th → 54th0.058%3.0 / 3.1
4Matt Lenz '13University of Texas1/10.16-0.40−0.5622nd → 3rd0.278%4.0 / 3.2
5Ryan Schwend '13University of North Texas1/1-0.54——2nd → —1.1>99%5.0 / 3.7

Conditions — 10/13/2012 (8am–6pm)

🌤️Mainly clear
Humidity 72%  ·  Pressure 1021.5 hPa

Temperature

78°F
↑ 82°F   ↓ 68°F
Feels like 83°F

Wind

● from   ▲ toward
6.9 kn
avg  ·  max 8.6 kn
Gusts to 15.9 kn
From SE (138°)

Sky & Precipitation

Cloud cover24% Sunshine10.9 hrs Humidity72% Pressure1021.5 hPa

What this breeze does at Tulane — from fleet racing

Breeze: SE about 9 kn (weather reanalysis in the scorer’s units)
In fleet races at Tulane in this breeze: a favourites’ day (+0.07)
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 ±0.07 means a rating gap counts about 6% 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 Tulane by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (38 labelled fleet-race days at Tulane).

From the notes

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

All notes →