ISSA National Keelboat Invitational

# SchoolTeam A TOT
1 Corona del Mar High School Corona del Mar High School Sea Kings 28 28
2 Newport Harbor High School Newport Harbor High School Sailors 35 35
3 Falmouth High School (ME) Falmouth High School (ME) Yachtsmen 38 38
4 Annapolis High School Annapolis High School Panthers 45 45
5 Severn School Severn School Admirals 46 46
6 Archbishop Spalding Archbishop Spalding Cavaliers 52 52
7 Minnetonka High School Minnetonka High School Skippers 60 60
8 St. Ignatius College Prep, Chicago, IL St. Ignatius College Prep, Chicago, IL Wolfpack 67 67
9 Shorecrest Preparatory School Shorecrest Preparatory School Chargers 82 82
10 Lakewood High School Lakewood High School Varsity 95 95
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 TOT
Corona del Mar High School Corona del Mar High School Sea Kings 1 2 1 1 7 2 3 3 5 3 28
Newport Harbor High School Newport Harbor High School Sailors 3 4 5 4 4 4 2 1 4 4 35
Falmouth High School (ME) Falmouth High School (ME) Yachtsmen 5 BKD 3 5 1 1 1 2 8 9 38
Annapolis High School Annapolis High School Panthers 8 3 8 3 2 3 7 5 1 5 45
Severn School Severn School Admirals 2 9 2 6 3 8 4 4 6 2 46
Archbishop Spalding Archbishop Spalding Cavaliers 4 1 4 8 5 7 5 8 2 8 52
Minnetonka High School Minnetonka High School Skippers 7 6 6 2 6 5 8 7 7 6 60
St. Ignatius College Prep, Chicago, IL St. Ignatius College Prep, Chicago, IL Wolfpack 9 8 7 9 8 10 6 6 3 1 67
Shorecrest Preparatory School Shorecrest Preparatory School Chargers 6 7 10 7 10 6 9 10 10 7 82
Lakewood High School Lakewood High School Varsity 10 10 9 10 9 9 10 9 9 10 95
School Team Sailors
Annapolis High School Annapolis High School Panthers SkipperPorter Kavle '18
CrewNicholas Salvesen '18
CrewGeorge Kaye '18
CrewRemington King '17
Corona del Mar High School Corona del Mar High School Sea Kings SkipperMax Mayol '19
CrewRobert Garrett '17
CrewDavid Wood '19
CrewCameron Wood '18
Lakewood High School Lakewood High School Varsity SkipperDaniel Denison '17
CrewHanna Brydon '17
CrewKurban Ali '17
CrewCameron Delgado '19
Minnetonka High School Minnetonka High School Skippers SkipperConrad (Cort) Vandlik '17
CrewCarl Eaton '17
CrewHannah Dillahunt '17
CrewMatthew Kickhafer '19
Shorecrest Preparatory School Shorecrest Preparatory School Chargers SkipperKyle Dochoda '17
CrewElizabeth Shanahan '19
CrewHeather Kerns '20
CrewAnika Boicheff '20
St. Ignatius College Prep, Chicago, IL St. Ignatius College Prep, Chicago, IL Wolfpack SkipperRay Groble '17
CrewAisling Sullivan '18
CrewMatthew Alfano '17
CrewNicholas Alfano '18

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.
1Max Mayol '19Corona del Mar High School10/102.513.08+0.5799th → 99th1.416%2.8 / 4.2
3Porter Kavle '18Annapolis High School10/101.902.21+0.3099th → 99th0.531%4.5 / 5.2
7Conrad (Cort) Vandlik '17Minnetonka High School10/101.811.85+0.0499th → 99th0.068%6.0 / 5.4
8Ray Groble '17St. Ignatius College Prep, Chicago, IL10/101.851.18−0.6799th → 86th2.483%6.7 / 5.3
9Kyle Dochoda '17Shorecrest Preparatory School10/101.690.33−1.3699th → 26th8.497%8.2 / 5.6
10Daniel Denison '17Lakewood High School10/100.500.19−0.3137th → 14th0.397%9.5 / 7.6

Conditions — 11/19/2016 (8am–6pm)

🌤️Partly cloudy
Humidity 34%  ·  Pressure 1017.4 hPa

Temperature

66°F
↑ 74°F   ↓ 50°F
Feels like 62°F

Wind

● from   ▲ toward
2.7 kn
avg  ·  max 5.8 kn
Gusts to 15.2 kn
From W (272°)

Sky & Precipitation

Cloud cover40% Sunshine10.0 hrs Humidity34% Pressure1017.4 hPa

What this breeze does at Lakewood/Shorecrest Prep — from fleet racing

Breeze: W about 6 kn (weather reanalysis in the scorer’s units)
In fleet races at Lakewood/Shorecrest Prep in this breeze: an underdogs’ day (−0.04)
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 ±0.04 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 Lakewood/Shorecrest Prep by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (no labelled days at Lakewood/Shorecrest Prep: the all-venue pattern is shown).

From the notes

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

All notes →