MASSA Keelboat Qualifier

# SchoolTeam A TOT
1 Archbishop Spalding Archbishop Spalding Cavaliers 34 34
2 Annapolis High School Annapolis High School Panthers 35 35
3 Severn School Severn School Admirals 42 42
4 Mercy High School Mercy High School Varsity 56 56
5 Christchurch School Christchurch School Seahorses 61 61
6 Southwestern Central High School Southwestern Central High School Trojans 70 70
SchoolTeam R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 TOT
Archbishop Spalding Archbishop Spalding Cavaliers 1 3 3 2 2 2 2 6 3 2 1 2 3 2 34
Annapolis High School Annapolis High School Panthers 2 1 2 3 1 1 1 4 1 1 5 5 5 3 35
Severn School Severn School Admirals 3 2 1 1 3 4 3 1 DSQ 4 2 6 4 1 42
Mercy High School Mercy High School Varsity 4 4 6 5 DSQ 3 4 5 2 3 3 3 1 6 56
Christchurch School Christchurch School Seahorses 6 6 4 4 DSQ 5 5 3 4 5 4 1 2 5 61
Southwestern Central High School Southwestern Central High School Trojans 5 5 5 6 4 6 6 2 5 6 6 4 6 4 70
School Team Sailors
Annapolis High School Annapolis High School Panthers SkipperPorter Kavle '18
CrewGeorge Kaye '18
CrewRemington King '17
CrewNicholas Salvesen '18
Archbishop Spalding Archbishop Spalding Cavaliers SkipperWill Comerford '17
CrewCaroline Kelly '19
CrewJack Irvin '17
CrewJake Vickers '18
Christchurch School Christchurch School Seahorses SkipperBrendan Little '18 [1-10]
SkipperBoyd Bragg '19 [11-14]
CrewBenton Amthor '19
CrewJohn Vail '20
Mercy High School Mercy High School Varsity SkipperGavin Bloom '17
CrewBridget Lawless '17
CrewSarah Chew '18
CrewWilliam Santos '18
Severn School Severn School Admirals SkipperConnor Bayless '17 [1-6]
SkipperAidan Morgan '17 [7-14]
CrewCaroline Bayless '19
CrewPeter Jensen '18
Southwestern Central High School Southwestern Central High School Trojans SkipperWilliam Turner '20
CrewAJ Smith '18
CrewPatrick Kelly '20
CrewChase Stevenson '19

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  6 boats · 14 races

FinSkipperSchool Races Rating
before
Perf.
rating
Δ Percentile
before → perf.
Surprise
(bits)
P(this good
or better)
Avg finish
actual / exp.
1Will Comerford '17Archbishop Spalding14/141.672.64+0.9899th → 99th4.610%2.4 / 3.5
2Porter Kavle '18Annapolis High School14/141.902.48+0.5799th → 99th1.716%2.5 / 3.2
3Aidan Morgan '17Severn School Admirals8/141.662.07+0.4099th → 99th0.455%3.5 / 3.4
3Connor Bayless '17Severn School Admirals6/142.492.58+0.0999th → 99th0.040%2.3 / 2.7
4Gavin Bloom '17Mercy High School14/140.751.80+1.0559th → 99th5.130%4.0 / 4.4
5Brendan Little '18Christchurch School Seahorses10/142.380.70−1.6899th → 55th13.8>99%4.9 / 2.7
5Boyd Bragg '19Christchurch School Seahorses4/142.581.83−0.7599th → 99th1.075%3.0 / 2.5
6William Turner '20Southwestern Central High School14/141.130.53−0.6082nd → 40th1.591%5.0 / 4.1

Conditions — 11/05/2016 (8am–6pm)

🌤️Mainly clear
Humidity 71%  ·  Pressure 1022.2 hPa

Temperature

54°F
↑ 57°F   ↓ 48°F
Feels like 46°F

Wind

● from   ▲ toward
12.1 kn
avg  ·  max 13.9 kn
Gusts to 24.9 kn
From W (267°)

Sky & Precipitation

Cloud cover54% Sunshine9.5 hrs Humidity71% Pressure1022.2 hPa

What this breeze does at Rochester Yacht Club — from fleet racing

Breeze: W about 13 kn (weather reanalysis in the scorer’s units)
In fleet races at Rochester Yacht Club in this breeze: a favourites’ day (+0.07)
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 ±0.07 means a rating gap counts about 6% 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 Rochester Yacht Club by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (only 1 labelled days at Rochester Yacht Club, 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 →