ISSA National Keelboat Challenge

# SchoolTeam A TOT
1 Shorecrest Preparatory School Shorecrest Preparatory School Chargers 14 14
2 Newport Harbor High School Newport Harbor High School Sailors 30 30
3 Clear Falls High School Clear Falls High School Knights 42 42
4 Annapolis High School Annapolis High School Panthers 47 47
5 Point Loma High School Point Loma High School Pointers 52 52
6 Archbishop Spalding Archbishop Spalding Cavaliers 56 56
7 Loyola Academy Loyola Academy Ramblers 59 59
8 Sarasota Military Academy Sarasota Military Academy Varsity 65 65
9 The Taft School The Taft School Big Red Rhinos 87 87
10 Sarasota High School Sarasota High School Sailors 110 110
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 TOT
Shorecrest Preparatory School Shorecrest Preparatory School Chargers 1 1 1 1 1 1 3 1 1 3 14
Newport Harbor High School Newport Harbor High School Sailors 2 2 3 2 2 3 4 2 4 6 30
Clear Falls High School Clear Falls High School Knights 4 5 2 3 6 4 5 5 3 5 42
Annapolis High School Annapolis High School Panthers 5 3 7 4 3 5 1 3 5 DSQ 47
Point Loma High School Point Loma High School Pointers 6 6 6 5 7 6 2 6 7 1 52
Archbishop Spalding Archbishop Spalding Cavaliers 3 4 4 8 4 2 7 8 8 8 56
Loyola Academy Loyola Academy Ramblers 7 8 5 6 5 7 6 7 6 2 59
Sarasota Military Academy Sarasota Military Academy Varsity 8 7 8 7 8 8 9 4 2 4 65
The Taft School The Taft School Big Red Rhinos 9 9 9 9 9 9 8 9 9 7 87
Sarasota High School Sarasota High School Sailors DNS DNS DNS DNS DNS DNS DNS DNS DNS DNS 110
School Team Sailors
Annapolis High School Annapolis High School Panthers SkipperKyle Comerford '15
CrewPorter Kavle '18
CrewRebecca Osborn '15
CrewLexi Pline '15
Archbishop Spalding Archbishop Spalding Cavaliers SkipperCole Daitch '16
CrewWill Comerford '17
CrewJessica Perry '16
CrewJake Vickers '18
Clear Falls High School Clear Falls High School Knights SkipperDane Byerly '16
CrewHowdy Hughes '15
CrewMarcus Abate '16
CrewHunter Skinner '16
Loyola Academy Loyola Academy Ramblers SkipperR J Porter '15
CrewGaby Ahlstrom '16
CrewGriffin Elliott '15
CrewOwen Hall '16
Newport Harbor High School Newport Harbor High School Sailors SkipperCampbell D'Eliscu '15
CrewBriggs D'Eliscu '16
CrewSean Segerblom '16
CrewCarter Scott '16
Point Loma High School Point Loma High School Pointers SkipperJohannes McElvain '15
CrewCole Baker '16
CrewRebecca McElvain '15
CrewPaul Didham '16
Sarasota High School Sarasota High School Sailors SkipperNo show
Sarasota Military Academy Sarasota Military Academy Varsity SkipperBogan Whitehead '15
CrewCasey Goers '15
CrewAngelo Mehtala '15
CrewNate Hagen '16
Shorecrest Preparatory School Shorecrest Preparatory School Chargers SkipperNic Baird '15
CrewJosh Dochoda '16
CrewKyle Dochoda '17
CrewPatrick Shanahan '15
The Taft School The Taft School Big Red Rhinos SkipperMatt Burnham '16
CrewHannah White '16
CrewTaro Sochi '18
CrewKim Amelsberg '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 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.

Division A  10 boats · 10 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Nic Baird '15Shorecrest Preparatory School10/102.464.80+2.3499th → 99th12.8<1%1.4 / 4.3
2Campbell D'Eliscu '15Newport Harbor High School10/102.682.86+0.1999th → 99th0.225%3.0 / 4.0
3Dane Byerly '16Clear Falls High School10/102.192.35+0.1699th → 99th0.136%4.2 / 4.9
4Kyle Comerford '15Annapolis High School10/101.782.42+0.6499th → 99th1.731%4.7 / 5.5
5Johannes McElvain '15Point Loma High School10/102.051.76−0.2999th → 99th0.554%5.2 / 5.1
6Cole Daitch '16Archbishop Spalding10/101.681.28−0.4099th → 91st0.748%5.6 / 5.7
7R J Porter '15Loyola Academy10/101.151.62+0.4783rd → 94th1.133%5.9 / 6.6
8Bogan Whitehead '15Sarasota Military Academy10/101.680.90−0.7999th → 71st3.271%6.5 / 5.7
9Matt Burnham '16The Taft School10/100.54-0.83−1.3741st → 1st4.080%8.7 / 7.6

Conditions — 11/22/2014 (8am–6pm)

☁️Overcast
Humidity 73%  ·  Pressure 1021.3 hPa

Temperature

72°F
↑ 76°F   ↓ 66°F
Feels like 71°F

Wind

● from   ▲ toward
11.5 kn
avg  ·  max 13.0 kn
Gusts to 27.6 kn
From E (88°)

Sky & Precipitation

Cloud cover81% Sunshine6.0 hrs Humidity73% Pressure1021.3 hPa

What this breeze does at Shorecrest Preparato — from fleet racing

Breeze: E about 13 kn (weather reanalysis in the scorer’s units)
In fleet races at Shorecrest Preparato in this breeze: a strongly favourites’ day (+0.16)
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 ±0.16 means a rating gap counts about 14% 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 Shorecrest Preparato by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (only 4 labelled days at Shorecrest Preparato, 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 →