2022 Keelboat National Invational

# SchoolTeam A TOT
1 Clear Falls High School Clear Falls High School Knights 26 26
2 Severn School Severn School Admirals 27 27
3 Mater Dei High School Mater Dei High School MONARCHS 31 31
4 St. George's School St. George's School Dragons 44 44
5 Minnetonka High School Minnetonka High School Skippers 45 45
6 Newport Harbor High School Newport Harbor High School Sailors 51 51
7 Ransom Everglades School Ransom Everglades School Raiders 51 51
8 Archbishop Spalding Archbishop Spalding Cavaliers 55 55
9 Ballard High School Ballard High School Beavers 75 75
10 Evanston Township HS Evanston Township HS Wildkits 90 90
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 TOT
Clear Falls High School Clear Falls High School Knights 8 5 2 2 1 2 1 1 4 26
Severn School Severn School Admirals 1 2 5 3 2 1 3 3 7 27
Mater Dei High School Mater Dei High School MONARCHS 3 1 1 1 5 6 7 6 1 31
St. George's School St. George's School Dragons 6 6 7 4 7 5 5 2 2 44
Minnetonka High School Minnetonka High School Skippers 7 4 3 7 6 4 4 7 3 45
Newport Harbor High School Newport Harbor High School Sailors 2 8 6 6 4 3 9 5 8 51
Ransom Everglades School Ransom Everglades School Raiders 5 3 4 9 3 8 6 8 5 51
Archbishop Spalding Archbishop Spalding Cavaliers 4 7 8 5 9 7 2 4 9 55
Ballard High School Ballard High School Beavers 9 9 9 8 8 9 8 9 6 75
Evanston Township HS Evanston Township HS Wildkits 10 10 10 10 10 10 10 10 10 90
School Team Sailors
Archbishop Spalding Archbishop Spalding Cavaliers SkipperHugh Carty '23
CrewTaylor Collison '24
CrewOwen MacWilliams '24
CrewParker Herman '24
Ballard High School Ballard High School Beavers SkipperArden Rathopf '23
CrewSimone Ford '24
CrewSam Airhart '23
CrewPhoebe Howe '24
Clear Falls High School Clear Falls High School Knights SkipperAva Anderson '23
CrewKorbin Bendele '25
CrewKailey Warrior '23
CrewHamilton Barclay '23
ReserveAva Anderson '23Hamilton Barclay '23Korbin Bendele '25Kailey Warrior '23
Evanston Township HS Evanston Township HS Wildkits SkipperBennett Gottesman '23 [10]
CrewEva DeCastro '24 [10]
CrewWilliam Styslinger '24 [10]
CrewQuinn Stevens '23 [10]
Mater Dei High School Mater Dei High School MONARCHS SkipperMorgan Pinckney '23
CrewVera Allen '23
CrewReade Decker '23
CrewDamien Bocan '23
Minnetonka High School Minnetonka High School Skippers SkipperJacob Zils '23 [1-9]
CrewGwen Nechas '24 [1-9]
CrewLucy Zinn '24 [1-9]
CrewMarley Barrett '23 [1-9]
Newport Harbor High School Newport Harbor High School Sailors SkipperEthan Simpson '23
CrewTate Oyler '25
CrewDillion Garcia '23
CrewSamantha Hemens '23
Ransom Everglades School Ransom Everglades School Raiders SkipperJackson McAliley '23 [1-9]
CrewSebastian Van de Kreeke '25 [1-9]
CrewSophia Adams '23 [1-9]
CrewIan Fox '24 [1-9]
Severn School Severn School Admirals SkipperThomas Sitzmann '23 [1-7]
CrewRobby Meek '23 [1-7]
CrewKyle Reinecke '23 [1-7]
CrewLilly Baker '23 [1-7]
St. George's School St. George's School Dragons SkipperPearse Dowd '25
CrewJane Marvin '24
CrewTim Hibben '23
CrewLucca Antonietti '25

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 78 ISSA 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  10 boats · 9 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Ava Anderson '23Clear Falls High School9/92.043.36+1.3299th → 99th5.43%2.9 / 5.5
2Thomas Sitzmann '23Severn School9/93.453.34−0.1199th → 99th0.046%3.0 / 3.3
3Morgan Pinckney '23Mater Dei High School9/93.362.95−0.4199th → 99th0.859%3.4 / 3.4
4Pearse Dowd '25St. George's School9/92.262.60+0.3399th → 99th0.544%4.9 / 5.2
5Jacob Zils '23Minnetonka High School9/91.842.57+0.7399th → 99th2.228%5.0 / 5.9
6Ethan Simpson '23Newport Harbor High School9/92.342.07−0.2899th → 99th0.370%5.7 / 5.0
6Jackson McAliley '23Ransom Everglades School9/92.152.00−0.1699th → 99th0.160%5.7 / 5.4
8Hugh Carty '23Archbishop Spalding9/92.291.76−0.5399th → 99th1.377%6.1 / 5.1
9Arden Rathopf '23Ballard High School9/90.421.14+0.7133rd → 82nd1.958%8.3 / 8.0
10Bennett Gottesman '23Evanston Township HS9/90.36——29th → —9.8>99%10.0 / 8.1

Conditions — 12/10/2022 (8am–6pm)

☀️Clear sky
Humidity 75%  ·  Pressure 1020.0 hPa

Temperature

70°F
↑ 77°F   ↓ 62°F
Feels like 72°F

Wind

● from   ▲ toward
4.8 kn
avg  ·  max 6.5 kn
Gusts to 12.1 kn
From N (9°)

Sky & Precipitation

Cloud cover35% Sunshine7.7 hrs Humidity75% Pressure1020.0 hPa

What this breeze does at St. Petersburg — from fleet racing

Breeze: N about 8 kn (weather reanalysis in the scorer’s units)
In fleet races at St. Petersburg in this breeze: a favourites’ day (+0.04)
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 ±0.04 means a rating gap counts about 3% 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 St. Petersburg by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (only 5 labelled days at St. Petersburg, so the surface is mostly the all-venue pattern).

From the notes

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

All notes →