Dave Perry Team Race

# SchoolTeam Rec.
1 Yale University Yale University Bulldogs 8–1
2 Brown University Brown University Bears 4–5
3 Tufts University Tufts University Jumbos 4–5
4 University of Rhode Island University of Rhode Island Rams 2–7

Pre-event forecast

Fitted on the 15,849 team race matches sailed before 2021-10-30, using the line-ups that actually raced. It called 16 of 18 matches (89%) with a log-loss of 0.579 (a coin flip scores 0.693), so the event went about as expected for the forecast. Orderliness +0.05 ± 0.55: a typical event, more orderly than 47% of college team race events (temperature of the forecast log-odds that best fits the results, relative to the league average; nothing about the field, venue or wind predicts it, see the Weather tab). vs forecast is a team's wins minus the wins the model expected from the matches it sailed: positive means it beat its rating.

PlaceSchool Pred. Strength Boats (skipper / crew, boat value) Pred. win % Recordvs forecast
1Yale University
Bulldogs
18.50
school +0.20, home +0.35
Christophe Chaumont / Sydney Zoehrer 2.35
Megan Grimes / Alexandra Contomichalos 2.65
Nicholas Davies / Becca Rose 2.88
65%8–1 (89%)+2.1
2Brown University
Bears
38.27
school +0.20
Jed Bell / Charlotte Costikyan 2.84
Brielle Willoughby / Emilia Ruth
Thomas Styron / Izzy Cox
58%4–5 (44%)−1.2
3Tufts University
Jumbos
28.27
school +0.06
Connor Sheridan / Harper Mckerrow 2.93
Bryan Trammell / Adelaide Straub 2.28
Trevor Davis / Henry Tindall 2.94
58%4–5 (44%)−1.2
4University of Rhode Island
Rams
46.83
school −0.25
Henry Lee / Jack Honan 2.10
Joshua Bartoszuk / Anika Martz 2.17
Ben Rosenberg / Halle Peterlin 2.69
18%2–7 (22%)+0.4

Surprisal: who beat their rating

Pre-event strength against the strength that would have made each record least surprising, everything else fixed. Δ is in the model's logit units, the same scale as the boat values above (a side is three boats plus the school term); green is a clear over-performance, red a clear under-performance. Skippers need three or more matches.

PlaceSchoolStrength Perf.RecordExp.
wins
ΔSurprise
(bits)
P(this good
or better)
1Yale University8.5010.018–15.9+1.522.012%
4University of Rhode Island6.837.102–71.6+0.270.150%
3Tufts University8.277.634–55.2−0.630.690%
2Brown University8.277.634–55.3−0.640.690%

By skipper

SkipperSchoolValue Perf.RecordExp.
wins
ΔSurprise
(bits)
P(this good
or better)
Nicholas DaviesYale University2.884.408–15.9+1.522.012%
Joshua BartoszukUniversity of Rhode Island2.172.442–71.6+0.270.150%
Ben RosenbergUniversity of Rhode Island2.692.962–71.6+0.270.150%
Bryan TrammellTufts University2.281.654–55.2−0.630.690%
Jed BellBrown University2.842.204–55.3−0.640.690%
Thomas StyronBrown University2.131.494–55.3−0.640.690%

Match by match

Probability the model gave the side that went on to win. Red bars are upsets (the winner was given under 50%).

Rd#WinnerLoser P(winner)
11Tufts UniversityUniversity of Rhode Island81%
12Yale UniversityBrown University59%
13University of Rhode IslandYale University16%upset
14Tufts UniversityBrown University52%
15Yale UniversityTufts University56%
16Brown UniversityUniversity of Rhode Island81%
27Tufts UniversityUniversity of Rhode Island81%
28Yale UniversityBrown University56%
29Yale UniversityUniversity of Rhode Island84%
210Brown UniversityTufts University51%
211Yale UniversityTufts University56%
212University of Rhode IslandBrown University19%upset
313Tufts UniversityUniversity of Rhode Island81%
314Yale UniversityBrown University54%
315Yale UniversityUniversity of Rhode Island84%
316Brown UniversityTufts University52%
317Yale UniversityTufts University56%
318Brown UniversityUniversity of Rhode Island82%

Round 1

TeamRec.BulldogsBearsJumbosRams
Yale University Bulldogs2–1✕WWL
Brown University Bears1–2L✕LW
Tufts University Jumbos2–1LW✕W
University of Rhode Island Rams1–2WLL✕

Round 2

TeamRec.BulldogsBearsJumbosRams
Yale University Bulldogs3–0✕WWW
Brown University Bears1–2L✕WL
Tufts University Jumbos1–2LL✕W
University of Rhode Island Rams1–2LWL✕

Round 3

TeamRec.BulldogsBearsJumbosRams
Yale University Bulldogs3–0✕WWW
Brown University Bears2–1L✕WW
Tufts University Jumbos1–2LL✕W
University of Rhode Island Rams0–3LLL✕
# Winner Loser Pos.
1 Tufts University Jumbos 1-3-5 def. University of Rhode Island Rams 2-4-6
2 Yale University Bulldogs 1-3-6 def. Brown University Bears 2-4-5
3 University of Rhode Island Rams 1-3-4 def. Yale University Bulldogs 2-5-6
4 Tufts University Jumbos 1-2-6 def. Brown University Bears 3-4-5
5 Yale University Bulldogs 1-2-5 def. Tufts University Jumbos 3-4-6
6 Brown University Bears 1-2-6 def. University of Rhode Island Rams 3-4-5
7 Tufts University Jumbos 1-2-4 def. University of Rhode Island Rams 3-5-6
8 Yale University Bulldogs 2-3-4 def. Brown University Bears 1-5-6
9 Yale University Bulldogs 1-2-6 def. University of Rhode Island Rams 3-4-5
10 Brown University Bears 1-2-5 def. Tufts University Jumbos 3-4-6
11 Yale University Bulldogs 1-2-3 def. Tufts University Jumbos 4-5-6
12 University of Rhode Island Rams 1-2-4 def. Brown University Bears 3-5-6
13 Tufts University Jumbos 1-3-5 def. University of Rhode Island Rams 2-4-6
14 Yale University Bulldogs 1-2-4 def. Brown University Bears 3-5-6
15 Yale University Bulldogs 1-2-4 def. University of Rhode Island Rams 3-5-6
16 Brown University Bears 2-3-4 def. Tufts University Jumbos 1-5-6
17 Yale University Bulldogs 1-2-4 def. Tufts University Jumbos 3-5-6
18 Brown University Bears 1-2-4 def. University of Rhode Island Rams 3-5-6

Conditions — 10/30/2021 (8am–6pm)

🌦️Light drizzle
Humidity 95%  ·  Pressure 1004.8 hPa

Temperature

59°F
↑ 61°F   ↓ 52°F
Feels like 57°F

Wind

● from   ▲ toward
8.1 kn
avg  ·  max 11.8 kn
Gusts to 26.8 kn
From ESE (109°)

Sky & Precipitation

Cloud cover85% Sunshine1.5 hrs Humidity95% Pressure1004.8 hPa Rain0.23 in

What this breeze does at Yale — from fleet racing

Breeze: E about 10 kn (weather reanalysis in the scorer’s units)
In fleet races at Yale in this breeze: a strongly favourites’ day (+0.15)
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 ±0.15 means a rating gap counts about 13% 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 Yale by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (69 labelled fleet-race days at Yale).

From the notes

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

All notes →