NEISA Women's Singlehanded Championships

SchoolSailor R1 R2 R3 R4 R5 R6 TOT
Brown University Brown University Lindsey Baab '18 1 1 1 1 1 1 6
U. S. Coast Guard Academy U. S. Coast Guard Academy Dana Rohde '18 3 5 2 2 2 2 16
Boston College Boston College Isabella Loosbrock '19 2 3 4 3 3 3 18
Connecticut College Connecticut College Charlotte List '18 4 2 5 4 4 5 24
Harvard University Harvard University Taylor Ladd '18 5 8 7 6 6 8 40
U. S. Coast Guard Academy U. S. Coast Guard Academy Madelynn Widmeier '19 6 7 3 8 8 10 42
Tufts University Tufts University Amanda Sommi '16 7 6 11 5 10 4 43
Connecticut College Connecticut College Alexandra Maurillo '18 DNF 4 8 9 5 6 46
Harvard University Harvard University Taylor Gavula '19 11 12 6 7 12 7 55
University of Vermont University of Vermont Amina Brown '17 8 11 9 11 9 9 57
Tufts University Tufts University Molly Pleskus '18 10 9 10 12 7 12 60
U. S. Coast Guard Academy U. S. Coast Guard Academy Kayla Ellis '16 9 10 12 10 11 11 63
Connecticut College Connecticut College Haley Kachmar '18 DNF DNS DNS DNS DNS DNS 84

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 singlehanded rating rather than the fleet rating: 0.79 × the skipper's fleet rating from the week before the event (unrated skippers start at 1.11); the skipper's own singlehanded offset. Strength differences are scaled by 0.80 before they become probabilities, the value that calibrates the model on seasons it had not seen. Non-finishes (OCS, DNF and similar) are left out of the fitting, as in the rating model.

Percentile places a rating among the 309 ICSA sailors with a singlehanded 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 singlehanded 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  13 boats · 6 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Lindsey Baab '18Brown University6/62.548.75++6.2166th → 99th18.1<1%1.0 / 5.9
2Dana Rohde '18U. S. Coast Guard Academy Bears 16/62.754.21+1.4573rd → 97th3.24%2.7 / 5.5
3Isabella Loosbrock '19Boston College6/61.994.06+2.0751st → 95th6.22%3.0 / 7.0
4Charlotte List '18Connecticut College Camels 26/62.083.43+1.3554th → 89th3.111%4.0 / 6.8
5Taylor Ladd '18Harvard University Crimson 26/62.092.38+0.2855th → 61st0.250%6.7 / 6.8
6Madelynn Widmeier '19U. S. Coast Guard Academy Bears 36/61.852.20+0.3547th → 58th0.347%7.0 / 7.3
7Amanda Sommi '16Tufts University Jumbos 26/61.812.03+0.2244th → 53rd0.149%7.2 / 7.3
8Alexandra Maurillo '18Connecticut College Camels 36/61.652.46+0.8241st → 62nd1.152%7.7 / 7.6
9Taylor Gavula '19Harvard University Crimson 16/61.650.56−1.0941st → 15th1.976%9.2 / 7.6
10Amina Brown '17University of Vermont6/62.371.30−1.0661st → 30th3.292%9.5 / 6.3
11Molly Pleskus '18Tufts University Jumbos 16/61.870.72−1.1547th → 17th2.889%10.0 / 7.3
12Kayla Ellis '16U. S. Coast Guard Academy Bears 26/62.260.74−1.5259th → 17th6.297%10.5 / 6.5
13Haley Kachmar '18Connecticut College Camels 16/60.96——22nd → —0.0>99%14.0 / 8.9

Conditions — 10/03/2015 (8am–6pm)

🌦️Light drizzle
Humidity 84%  ·  Pressure 1029.8 hPa

Temperature

50°F
↑ 52°F   ↓ 49°F
Feels like 42°F

Wind

● from   ▲ toward
15.5 kn
avg  ·  max 16.6 kn
Gusts to 30.1 kn
From NE (42°)

Sky & Precipitation

Cloud cover100% Sunshine0.0 hrs Humidity84% Pressure1029.8 hPa Rain0.14 in

What this breeze does at Boston College — from fleet racing

Breeze: NE about 16 kn (weather reanalysis in the scorer’s units)
In fleet races at Boston College in this breeze: a strongly favourites’ day (+0.12)
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 ±0.12 means a rating gap counts about 10% 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 Boston College by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (29 labelled fleet-race days at Boston College).

From the notes

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

All notes →