NEISA J70 Two-Day Invite

# SchoolTeam A TOT
1 Roger Williams University Roger Williams University Hawks 25 25
2 U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 2 25 25
3 University of Vermont University of Vermont Catamounts 30 30
4 U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 1 33 33
5 Boston University Boston University Terriers 38 38
6 Tufts University Tufts University Jumbos 50 50
7 University of Rhode Island University of Rhode Island Rams 52 52
8 Sacred Heart University Sacred Heart University Pioneers 71 71
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 TOT
Roger Williams University Roger Williams University Hawks 1 3 4 3 4 1 2 5 2 25
U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 2 2 2 3 1 2 2 7 2 4 25
University of Vermont University of Vermont Catamounts 5 1 2 2 5 7 3 4 1 30
U. S. Coast Guard Academy U. S. Coast Guard Academy Bears 1 3 4 5 5 3 3 1 6 3 33
Boston University Boston University Terriers 8 6 1 4 1 6 4 1 7 38
Tufts University Tufts University Jumbos 6 5 7 7 6 4 6 3 6 50
University of Rhode Island University of Rhode Island Rams 4 7 6 6 7 5 5 7 5 52
Sacred Heart University Sacred Heart University Pioneers 7 8 8 8 8 8 8 8 8 71

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.

Division A  8 boats · 9 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Daniel Petrovic '19Roger Williams University9/91.712.24+0.5394th → 99th1.126%2.8 / 3.6
1Eric Gimple '20U. S. Coast Guard Academy Bears 29/91.032.18+1.1675th → 99th4.33%2.8 / 4.6
3Nate Peck '20University of Vermont9/91.191.81+0.6281st → 96th1.520%3.3 / 4.4
4William Colomb '18U. S. Coast Guard Academy Bears 19/91.58u1.70+0.1291st → 94th0.149%3.7 / 3.8
5Charles Welsh '18Boston University9/91.570.94−0.6391st → 72nd1.768%4.2 / 3.8
6John Duncan '19Tufts University9/91.140.76−0.3879th → 61st0.782%5.6 / 4.5
7William Connelly '18University of Rhode Island9/90.790.74−0.0464th → 61st0.074%5.8 / 5.0
8David Tampellini '17Sacred Heart University9/9-0.12-1.95−1.8311th → 1st4.499%7.9 / 6.2

Conditions — 04/01/2017 (8am–6pm)

🌦️Light drizzle
Humidity 88%  ·  Pressure 1007.8 hPa

Temperature

38°F
↑ 41°F   ↓ 36°F
Feels like 27°F

Wind

● from   ▲ toward
14.8 kn
avg  ·  max 15.5 kn
Gusts to 37.7 kn
From N (6°)

Sky & Precipitation

Cloud cover100% Sunshine1.5 hrs Humidity88% Pressure1007.8 hPa Rain0.18 in

What this breeze does at Coast Guard — from fleet racing

Breeze: N about 16 kn (weather reanalysis in the scorer’s units)
In fleet races at Coast Guard in this breeze: a strongly favourites’ day (+0.20)
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 ±0.20 means a rating gap counts about 17% 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 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 →