Ross Trophy at Courageous Sailing Center

# SchoolTeam A TOT
1 Tufts University Tufts University Jumbos 2 28 28
2 Tufts University Tufts University Jumbos 1 31 31
3 Boston University Boston University Terriers 1 36 36
4 Brown University Brown University Bears 1 40 40
5 University of New Hampshire University of New Hampshire Wildcats 43 43
6 Wentworth Institute of Technology Wentworth Institute of Technology Leopards 51 51
7 Northeastern University Northeastern University Huskies 53 53
8 Williams College Williams College Ephs 60 60
9 University of Massachusetts at Dartmouth University of Massachusetts at Dartmouth Corsairs 3 69 69
10 Boston University Boston University Terriers 2 76 76
11 University of Massachusetts at Dartmouth University of Massachusetts at Dartmouth Corsairs 1 76 76
12 Maine Maritime Academy Maine Maritime Academy Mariners 86 86
13 University of Massachusetts at Dartmouth University of Massachusetts at Dartmouth Corsairs 2 92 92
14 Brown University Brown University Bears 2 104 104
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 TOT
Tufts University Tufts University Jumbos 2 2 2 1 6 7 5 1 4 28
Tufts University Tufts University Jumbos 1 4 5 4 3 4 4 2 5 31
Boston University Boston University Terriers 1 10 1 6 2 8 3 4 2 36
Brown University Brown University Bears 1 3 4 2 4 3 2 RAF 7 40
University of New Hampshire University of New Hampshire Wildcats 5 8 3 9 1 6 3 8 43
Wentworth Institute of Technology Wentworth Institute of Technology Leopards 9 11 5 1 9 10 5 1 51
Northeastern University Northeastern University Huskies 1 9 7 12 2 1 12 9 53
Williams College Williams College Ephs 11 12 8 5 6 9 6 3 60
University of Massachusetts at Dartmouth University of Massachusetts at Dartmouth Corsairs 3 7 3 13 10 13 7 10 6 69
Boston University Boston University Terriers 2 12 7 10 7 12 11 7 10 76
University of Massachusetts at Dartmouth University of Massachusetts at Dartmouth Corsairs 1 14 6 9 14 5 8 8 12 76
Maine Maritime Academy Maine Maritime Academy Mariners 8 10 11 13 11 13 9 11 86
University of Massachusetts at Dartmouth University of Massachusetts at Dartmouth Corsairs 2 13 13 12 8 10 12 11 13 92
Brown University Brown University Bears 2 6 14 14 11 14 DNS DNS DNS 104

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  14 boats · 8 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Tyler Paige '18Tufts University Jumbos 28/81.022.12+1.1075th → 99th4.18%3.5 / 6.4
2Grace Shank '18Tufts University Jumbos 18/80.61u2.05+1.4455th → 99th6.85%3.9 / 7.4
3Reed Lorimer '18Boston University Terriers 18/81.371.62+0.2587th → 92nd0.333%4.5 / 5.5
4Henry Sharpe '17Brown University Bears 18/81.312.08+0.7786th → 99th1.941%5.0 / 5.7
5Amelia Connell '16University of New Hampshire8/8-0.271.45+1.736th → 89th9.63%5.4 / 9.5
6John Zupkus '16Wentworth Institute of Technology8/80.231.10+0.8835th → 77th3.018%6.4 / 8.4
7Stephen Fletcher '17Northeastern University8/80.830.53−0.3067th → 51st0.448%6.6 / 6.9
8Jorge Castro '16Williams College8/80.380.87+0.5042nd → 69th1.142%7.5 / 8.0
9Kelsey Martins '16University of Massachusetts at Dartmouth Corsairs 38/8-0.080.54+0.6213th → 53rd1.642%8.6 / 9.1
10Hanna Desilets '17University of Massachusetts at Dartmouth Corsairs 18/8-0.41-0.00+0.403rd → 16th0.541%9.5 / 9.9
10Mathew Renik '19Boston University Terriers 28/81.600.18−1.4291st → 22nd13.899%9.5 / 5.0
12Huxley Conner '19Maine Maritime Academy8/80.19-0.03−0.2222nd → 15th0.287%10.8 / 8.5
13Kelsey Delosh '17University of Massachusetts at Dartmouth Corsairs 28/80.35-0.31−0.6641st → 5th2.195%11.5 / 8.1
14Emma Davis '17Brown University Bears 28/80.96-1.28−2.2472nd → 1st12.3>99%13.0 / 6.6

Conditions — 09/26/2015 (8am–6pm)

☁️Overcast
Humidity 55%  ·  Pressure 1033.3 hPa

Temperature

60°F
↑ 63°F   ↓ 54°F
Feels like 55°F

Wind

● from   ▲ toward
9.1 kn
avg  ·  max 10.0 kn
Gusts to 21.2 kn
From NE (50°)

Sky & Precipitation

Cloud cover98% Sunshine11.0 hrs Humidity55% Pressure1033.3 hPa

What this breeze does at Tufts — from fleet racing

Breeze: NE about 11 kn (weather reanalysis in the scorer’s units)
In fleet races at Tufts in this breeze: an underdogs’ day (−0.04)
Underdogs’ conditions: in fleet racing here the fleet bunches up and lower-rated boats beat the seeds more often than 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 ±0.04 means a rating gap counts about 3% 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 Tufts by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (60 labelled fleet-race days at Tufts).

From the notes

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

All notes →