Pine Trophy

# SchoolTeam A TOT
1 Brown University Brown University Bears 19 19
2 Connecticut College Connecticut College Camels 23 23
3 Tufts University Tufts University Jumbos 44 44
4 Dartmouth College Dartmouth College Big Green 44 44
5 U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 1 46 46
6 University of Vermont University of Vermont Catamounts 48 48
7 U. S. Merchant Marine Academy U. S. Merchant Marine Academy Mariners 56 56
8 U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 2 80 80
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 TOT
Brown University Brown University Bears 1 3 2 1 1 1 1 1 3 5 19
Connecticut College Connecticut College Camels 3 1 1 3 2 3 4 4 1 1 23
Tufts University Tufts University Jumbos 2 5 4 4 3 6 3 5 5 7 44
Dartmouth College Dartmouth College Big Green 5 2 3 7 4 4 2 6 7 4 44
U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 1 7 4 5 5 6 5 5 3 4 2 46
University of Vermont University of Vermont Catamounts 4 7 6 6 5 2 6 7 2 3 48
U. S. Merchant Marine Academy U. S. Merchant Marine Academy Mariners 6 6 7 2 7 7 7 2 6 6 56
U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 2 8 8 8 8 8 8 8 8 8 8 80

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.

  • u no fleet rating — the model's level for unrated skippers is the baseline.
  • — in the performance column: last in every race sailed, so no finite least-surprisal rating exists.

Division A  8 boats · 10 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Mark Towill '11Brown University10/102.223.26+1.0499th → 99th3.67%1.9 / 3.4
2Michael Marshall '11Connecticut College10/101.642.96+1.3193rd → 99th6.25%2.3 / 4.3
3James Altreuter '11Tufts University10/101.271.76+0.4985th → 94th1.239%4.4 / 4.8
3Timothy Scanlon '12Dartmouth College10/101.441.68+0.2488th → 94th0.347%4.4 / 4.5
5Steven Roth '12U. S. Coast Guard Academy Bears 110/101.58u1.61+0.0391st → 91st0.061%4.6 / 4.4
6Olin Davis '14University of Vermont10/101.311.51+0.1986th → 91st0.253%4.8 / 4.7
7Joseph Hoffman '11U. S. Merchant Marine Academy10/100.71u1.26+0.5558th → 85th1.550%5.6 / 5.5
8Steven Roth '12U. S. Coast Guard Academy Bears 210/101.58u——91st → —38.8>99%8.0 / 4.3

Conditions — 09/11/2010 (8am–6pm)

☁️Overcast
Humidity 51%  ·  Pressure 1015.1 hPa

Temperature

70°F
↑ 74°F   ↓ 60°F
Feels like 68°F

Wind

● from   ▲ toward
5.2 kn
avg  ·  max 6.5 kn
Gusts to 16.9 kn
From NE (37°)

Sky & Precipitation

Cloud cover66% Sunshine9.0 hrs Humidity51% Pressure1015.1 hPa

What this breeze does at Coast Guard — from fleet racing

Breeze: NE about 8 kn (weather reanalysis in the scorer’s units)
In fleet races at Coast Guard 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 Coast Guard by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (57 labelled fleet-race days at Coast Guard).

From the notes

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

All notes →