MASSA Cressy Quailifier Girls ILCA 6

SchoolSailor R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 TOT
Hampton Roads Academy Hampton Roads Academy Leila Pfrang '25 1 1 2 1 1 2 1 2 2 1 1 2 17
Bryn Mawr Bryn Mawr Alders Kulynych-Irvin '25 2 2 1 2 2 1 2 1 1 2 2 1 19
Christchurch School Christchurch School Chloe Shurr '25 DNF DNF RAF 3 3 4 3 3 3 3 4 3 53
Stuyvesant High School Stuyvesant High School Skye Lily Charles '27 4 4 3 4 4 3 4 4 5 7 5 4 61 PFD
Hilton Central Hilton Central Helena Allocco '25 6 3 4 6 6 6 5 6 4 6 6 6 64
Southern High School Southern High School Maggie Dowling '27 5 6 6 5 5 5 7 7 6 5 3 7 67
Maury High School Maury High School Lillian Rippel '25 3 5 5 7 7 7 6 5 7 4 7 5 68

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 495 ISSA 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  7 boats · 12 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Leila Pfrang '25Hampton Roads Academy12/122.954.14+1.1998th → 99th2.55%1.4 / 2.3
2Alders Kulynych-Irvin '25Bryn Mawr12/122.213.91+1.7086th → 99th5.92%1.6 / 2.9
3Skye Lily Charles '27Stuyvesant High School12/121.000.73−0.2758th → 47th0.359%4.2 / 4.1
4Chloe Shurr '25Christchurch School12/121.051.92+0.8759th → 82nd1.867%4.4 / 4.1
5Helena Allocco '25Hilton Central12/120.29-0.03−0.3230th → 21st0.474%5.3 / 4.8
6Maggie Dowling '27Southern High School12/120.24-0.72−0.9629th → 7th2.880%5.6 / 4.8
7Lillian Rippel '25Maury High School12/120.01-0.70−0.7122nd → 8th1.576%5.7 / 5.0

Conditions — 09/14/2024 (8am–6pm)

☁️Overcast
Humidity 77%  ·  Pressure 1020.7 hPa

Temperature

75°F
↑ 77°F   ↓ 73°F
Feels like 76°F

Wind

● from   ▲ toward
14.6 kn
avg  ·  max 15.9 kn
Gusts to 28.4 kn
From NE (50°)

Sky & Precipitation

Cloud cover100% Sunshine10.5 hrs Humidity77% Pressure1020.7 hPa

What this breeze does at Norfolk Yacht and Country Club — from fleet racing

Breeze: NE about 16 kn (weather reanalysis in the scorer’s units)
In fleet races at Norfolk Yacht and Country Club 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 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 Norfolk Yacht and Country Club by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (32 labelled fleet-race days at Norfolk Yacht and Country Club).

From the notes

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

All notes →