Richard Ross College Bowl 2017

# SchoolTeam A TOT
1 Boston University Boston University Terriers 17 17
2 Wentworth Institute of Technology Wentworth Institute of Technology Leopards 23 23
3 Tufts University Tufts University Jumbos 1 29 29
4 Tufts University Tufts University Jumbos 3 38 38
5 Brown University Brown University Bears 39 39
6 Northeastern University Northeastern University Huskies 41 41
7 Tufts University Tufts University Jumbos 2 41 41
8 Maine Maritime Academy Maine Maritime Academy Mariners 60 60
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 TOT
Boston University Boston University Terriers 1 1 1 6 3 1 2 2 17
Wentworth Institute of Technology Wentworth Institute of Technology Leopards 3 3 3 1 6 2 1 4 23
Tufts University Tufts University Jumbos 1 8 2 2 2 1 4 7 3 29
Tufts University Tufts University Jumbos 3 5 6 6 3 4 7 6 1 38
Brown University Brown University Bears 4 5 5 5 5 3 5 7 39
Northeastern University Northeastern University Huskies 2 7 7 7 2 5 3 8 41
Tufts University Tufts University Jumbos 2 7 4 4 4 7 6 4 5 41
Maine Maritime Academy Maine Maritime Academy Mariners 6 8 8 8 8 8 8 6 60
School Team Sailors
Boston University Boston University Terriers SkipperCasey Cabot '21
CrewRaymond Groble IV '21 [1-4]
CrewKatherine Bertolini '21 [5-8]
Brown University Brown University Bears SkipperIan Light '20
CrewJuan Briano '21 [1-4]
CrewJustin Chiang '21 [5-8]
Northeastern University Northeastern University Huskies SkipperCarter Brock '22
CrewLiz Silva '21
Tufts University Tufts University Jumbos 1 SkipperWells Drayton '21
CrewMarisa Permatteo '19
Tufts University Tufts University Jumbos 2 SkipperMatthew Galbraith '21
CrewJuliana Testa '21 [1-4]
CrewAlexandra Arsenault '20 [5-8]
Tufts University Tufts University Jumbos 3 SkipperNicholas Giacobbe '19
CrewKahler Newsham '19 [1-4]
CrewMargaret Veltri '20 [5-8]
Wentworth Institute of Technology Wentworth Institute of Technology Leopards SkipperBenjamin Eley '18
CrewAndrew Reynolds '19

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  8 boats · 8 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Casey Cabot '21Boston University8/81.672.35+0.6894th → 99th1.315%2.1 / 3.3
2Benjamin Eley '18Wentworth Institute of Technology8/80.191.94+1.7522nd → 98th8.83%2.9 / 5.4
3Wells Drayton '21Tufts University Jumbos 18/81.161.15−0.0179th → 79th0.041%3.6 / 4.0
4Nicholas Giacobbe '19Tufts University Jumbos 38/80.980.91−0.0773rd → 71st0.066%4.8 / 4.3
5Ian Light '20Brown University8/80.910.93+0.0271st → 72nd0.068%4.9 / 4.4
6Carter Brock '22Northeastern University8/80.320.64+0.3240th → 56th0.448%5.1 / 5.2
6Matthew Galbraith '21Tufts University Jumbos 28/80.470.89+0.4247th → 70th0.756%5.1 / 5.0

Conditions — 09/23/2017 (8am–6pm)

☁️Overcast
Humidity 74%  ·  Pressure 1016.5 hPa

Temperature

71°F
↑ 76°F   ↓ 64°F
Feels like 72°F

Wind

● from   ▲ toward
6.6 kn
avg  ·  max 9.2 kn
Gusts to 18.1 kn
From NE (55°)

Sky & Precipitation

Cloud cover54% Sunshine9.3 hrs Humidity74% Pressure1016.5 hPa

What this breeze does at Tufts — from fleet racing

Breeze: NE about 9 kn (weather reanalysis in the scorer’s units)
In fleet races at Tufts in this breeze: an underdogs’ day (−0.03)
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 ±0.03 means a rating gap counts about 2% 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 →