NE Match Racing Championship

# SchoolTeam A TOT
1 Harvard University Harvard University Crimson 1 1
2 Dartmouth College Dartmouth College Big Green 2 2
3 Yale University Yale University Bulldogs 3 3
4 Bowdoin College Bowdoin College Polar Bears 4 4
5 Brown University Brown University Bears 5 5
6 Tufts University Tufts University Jumbos 6 6
7 University of Rhode Island University of Rhode Island Rams 7 7
8 Boston University Boston University Terriers 8 8
SchoolTeam R1 TOT
Harvard University Harvard University Crimson 1 1
Dartmouth College Dartmouth College Big Green 2 2
Yale University Yale University Bulldogs 3 3
Bowdoin College Bowdoin College Polar Bears 4 4
Brown University Brown University Bears 5 5
Tufts University Tufts University Jumbos 6 6
University of Rhode Island University of Rhode Island Rams 7 7
Boston University Boston University Terriers 8 8
School Team Sailors
Boston University Boston University Terriers SkipperBrendan Cook '16
CrewLexi Pline '19
CrewCharles Welsh '18
Bowdoin College Bowdoin College Polar Bears SkipperWilliam Hawk '18
CrewJack McGuire '17
CrewSydney Avitia-Jacques '18
Brown University Brown University Bears SkipperPearson Potts '16
CrewSam Alexander '18
CrewAlexandra Swanson '16
Dartmouth College Dartmouth College Big Green SkipperCharles Lalumiere '17
CrewNathaniel Greason '17
CrewAbigail Rohman '16
ReserveSarah Williams '16
Harvard University Harvard University Crimson SkipperNick Sertl '18
CrewJacob Bradt '16
CrewTaylor Ladd '18
Tufts University Tufts University Jumbos SkipperJames Moody '16
CrewLeah Fletcher '17
CrewSamuel Shea '19
University of Rhode Island University of Rhode Island Rams SkipperMatthew Coughlin '16
CrewMatt Wordell '16
CrewElizabeth Durgin '16
Yale University Yale University Bulldogs SkipperIan Barrows '17
CrewNicolas Hernandez '19
CrewMarly Isler '16

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  8 boats · 1 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Nick Sertl '18Harvard University1/12.327.00++4.6899th → 99th3.014%1.0 / 4.3
2Charles Lalumiere '17Dartmouth College1/12.334.27+1.9599th → 99th1.224%2.0 / 4.5
3Ian Barrows '17Yale University1/13.083.31+0.2299th → 99th0.057%3.0 / 3.4
4William Hawk '18Bowdoin College1/12.462.89+0.4299th → 99th0.154%4.0 / 4.3
5Pearson Potts '16Brown University1/12.492.36−0.1399th → 99th0.067%5.0 / 4.3
6James Moody '16Tufts University1/11.981.98+0.0099th → 99th0.066%6.0 / 5.0
7Matthew Coughlin '16University of Rhode Island1/11.661.54−0.1293rd → 91st0.077%7.0 / 5.4
8Brendan Cook '16Boston University1/12.19——99th → —3.5>99%8.0 / 4.7

Conditions — 10/17/2015 (8am–6pm)

☀️Clear sky
Humidity 50%  ·  Pressure 1016.3 hPa

Temperature

52°F
↑ 54°F   ↓ 48°F
Feels like 44°F

Wind

● from   ▲ toward
9.8 kn
avg  ·  max 11.0 kn
Gusts to 22.5 kn
From WNW (292°)

Sky & Precipitation

Cloud cover27% Sunshine10.9 hrs Humidity50% Pressure1016.3 hPa

What this breeze does at Salve Regina — from fleet racing

Breeze: W about 12 kn (weather reanalysis in the scorer’s units)
In fleet races at Salve Regina in this breeze: an underdogs’ day (−0.07)
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 ±0.07 means a rating gap counts about 6% 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 Salve Regina by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (43 labelled fleet-race days at Salve Regina).

From the notes

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

All notes →