MDISA Baker Pre-Qualifier

# SchoolTeam Rec.
1 Severn School Severn School Admirals 15–0
2 Severna Park Severna Park Falcons 10–5
3 Key School Key School Zags 10–5
4 Archbishop Spalding Archbishop Spalding Cavaliers 5–10
5 St. Mary's High School (MD) St. Mary's High School (MD) Saints 4–8
6 South River High School South River High School Seahawks 2–10
7 Kent Island High School Kent Island High School Buccaneers 2–10

Pre-event forecast

Fitted on the 11,963 team race matches sailed before 2025-04-12, using the line-ups that actually raced. It called 42 of 48 matches (88%) with a log-loss of 0.296 (a coin flip scores 0.693), so the event went well for the forecast. Orderliness +0.28 ± 0.34: a typical event, more orderly than 62% of high school team race events (temperature of the forecast log-odds that best fits the results, relative to the league average; nothing about the field, venue or wind predicts it, see the Weather tab). vs forecast is a team's wins minus the wins the model expected from the matches it sailed: positive means it beat its rating.

PlaceSchool Pred. Strength Boats (skipper / crew, boat value) Pred. win % Recordvs forecast
1Severn School
Admirals
19.12Alex Baker / Charlotte Macdonald 2.99
Harrison Szot / Ana Fishback 2.97
Annie Sitzmann / Annabelle Ulak 3.17 10–0
Annie Sitzmann / Jack Lever-Farino 2.99 5–0
98%15–0 (100%)+0.3
2Severna Park
Falcons
25.36
school −0.23
Peter Judge / Logan Nield 1.95
Gavin Morris / Connor Smith 1.77
Jake Beaver / Madison Cannon 1.82
64%10–5 (67%)+0.4
3Key School
Zags
34.94
school −0.08
Mason Cook / Paige Asbill 2.66
Casey Burman / Gideon Santana 1.32
Trey Burman / Ben Coster 0.99
58%10–5 (67%)+1.3
4Archbishop Spalding
Cavaliers
43.66Ann Martino / Emily Julian 1.09
Mary Hayes Cobbum / Maggie Mcinerney 1.49
Alex Julian / Christina Pierce
38%5–10 (33%)−0.7
5St. Mary's High School (MD)
Saints
53.26
school −0.51
Halsey Carter / Luc Tetreault 1.62
Logan Downey / Delaney Carter 1.19
James Chapman / Aurelea Cerny 0.91
37%4–8 (33%)−0.5
6South River High School
Seahawks
71.84
home +0.13
Clara Neeland / Annika Fisher 0.68
Fiona O'Rourke / Tomas ...
Matthew Treatman-Clark / Zen Corby 0–8
Matthew Treatman-Clark / Harrison Jones 2–2
16%2–10 (17%)+0.1
7Kent Island High School
Buccaneers
62.43James Biles V / Viana Johnston 1.29
Zachary Wells / Henry Macmillan 0.60
Cole Ramsey / Samuel Wells 0.31
24%2–10 (17%)−0.9

Surprisal: who beat their rating

Pre-event strength against the strength that would have made each record least surprising, everything else fixed. Δ is in the model's logit units, the same scale as the boat values above (a side is three boats plus the school term); green is a clear over-performance, red a clear under-performance. Skippers need three or more matches.

PlaceSchoolStrength Perf.RecordExp.
wins
ΔSurprise
(bits)
P(this good
or better)
1Severn School9.1212.1215–014.7≥+3.000.471%
3Key School4.945.7910–58.7+0.850.630%
2Severna Park5.365.6210–59.6+0.270.155%
6South River High School1.841.882–102.0+0.040.062%
5St. Mary's High School (MD)3.262.964–84.4−0.300.175%
4Archbishop Spalding3.663.285–105.7−0.380.178%
7Kent Island High School2.431.682–102.9−0.750.486%

By skipper

SkipperSchoolValue Perf.RecordExp.
wins
ΔSurprise
(bits)
P(this good
or better)
Annie SitzmannSevern School3.176.1715–014.7≥+3.000.471%
Alex BakerSevern School2.995.9915–014.7≥+3.000.471%
Harrison SzotSevern School2.975.9715–014.7≥+3.000.471%
Casey BurmanKey School1.322.1710–58.7+0.850.630%
Jake BeaverSeverna Park1.822.0910–59.6+0.270.155%
Clara NeelandSouth River High School0.680.722–102.0+0.040.062%
Matthew Treatman-ClarkSouth River High School0.290.332–102.0+0.040.062%
James ChapmanSt. Mary's High School (MD)0.910.614–84.4−0.300.175%
Ann MartinoArchbishop Spalding1.090.715–105.7−0.380.178%
Alex JulianArchbishop Spalding0.990.615–105.7−0.380.178%
James Biles VKent Island High School1.290.542–102.9−0.750.486%
Zachary WellsKent Island High School0.60-0.162–102.9−0.750.486%
Cole RamseyKent Island High School0.31-0.442–102.9−0.750.486%

Match by match

Probability the model gave the side that went on to win. Red bars are upsets (the winner was given under 50%).

Rd#WinnerLoser P(winner)
11Archbishop SpaldingSt. Mary's High School (MD)57%
12Severn SchoolKent Island High School100%
13Key SchoolSouth River High School93%
14Severna ParkArchbishop Spalding79%
15St. Mary's High School (MD)Kent Island High School67%
16Severn SchoolKey School96%
17Severna ParkSouth River High School94%
18Archbishop SpaldingKent Island High School73%
19Key SchoolSt. Mary's High School (MD)79%
110Severn SchoolSouth River High School100%
111Severna ParkKent Island High School91%
112Key SchoolArchbishop Spalding73%
113St. Mary's High School (MD)South River High School76%
114Severn SchoolSeverna Park95%
115Key SchoolKent Island High School88%
116Archbishop SpaldingSouth River High School81%
117Severn SchoolSt. Mary's High School (MD)99%
118Key SchoolSeverna Park42%upset
119South River High SchoolKent Island High School39%upset
120Severn SchoolArchbishop Spalding98%
121Severna ParkSt. Mary's High School (MD)84%
222St. Mary's High School (MD)Archbishop Spalding42%upset
223Severn SchoolKent Island High School99%
224Key SchoolSouth River High School92%
225Severna ParkArchbishop Spalding79%
226Kent Island High SchoolSt. Mary's High School (MD)35%upset
227Severn SchoolKey School96%
228Severna ParkSouth River High School94%
229Archbishop SpaldingKent Island High School71%
230Key SchoolSt. Mary's High School (MD)79%
231Severn SchoolSouth River High School100%
232Severna ParkKent Island High School90%
233Key SchoolArchbishop Spalding73%
234St. Mary's High School (MD)South River High School74%
235Severn SchoolSeverna Park95%
236Key SchoolKent Island High School87%
237South River High SchoolArchbishop Spalding20%upset
238Severn SchoolSt. Mary's High School (MD)99%
239Severna ParkKey School58%
240Kent Island High SchoolSouth River High School61%
241Severn SchoolArchbishop Spalding98%
242Severna ParkSt. Mary's High School (MD)83%
343Severn SchoolKey School96%
344Archbishop SpaldingSeverna Park21%upset
345Severn SchoolArchbishop Spalding98%
346Severna ParkKey School58%
347Key SchoolArchbishop Spalding73%
348Severn SchoolSeverna Park95%
# Winner Loser Pos.
1 Archbishop Spalding Cavaliers 1-4-5 def. St. Mary's High School (MD) Saints 2-3-6
2 Severn School Admirals 1-2-3 def. Kent Island High School Buccaneers 4-5-6
3 Key School Zags 1-2-5 def. South River High School Seahawks 3-4-6
4 Severna Park Falcons 2-3-4 def. Archbishop Spalding Cavaliers 1-5-6
5 St. Mary's High School (MD) Saints 1-2-4 def. Kent Island High School Buccaneers 3-5-6
6 Severn School Admirals 1-2-3 def. Key School Zags 4-5-6
7 Severna Park Falcons 1-2-6 def. South River High School Seahawks 3-4-5
8 Archbishop Spalding Cavaliers 1-4-5 def. Kent Island High School Buccaneers 2-3-6
9 Key School Zags 1-2-6 def. St. Mary's High School (MD) Saints 3-4-5
10 Severn School Admirals 1-2-3 def. South River High School Seahawks 4-5-6
11 Severna Park Falcons 1-2-3 def. Kent Island High School Buccaneers 4-5-6
12 Key School Zags 1-2-3 def. Archbishop Spalding Cavaliers 4-5-6
13 St. Mary's High School (MD) Saints 1-3-4 def. South River High School Seahawks 2-5-6
14 Severn School Admirals 1-2-3 def. Severna Park Falcons 4-5-6
15 Key School Zags 1-2-4 def. Kent Island High School Buccaneers 3-5-6
16 Archbishop Spalding Cavaliers 1-3-6 def. South River High School Seahawks 2-4-5
17 Severn School Admirals 1-2-4 def. St. Mary's High School (MD) Saints 3-5-6
18 Key School Zags 1-3-6 def. Severna Park Falcons 2-4-5
19 South River High School Seahawks 1-2-4 def. Kent Island High School Buccaneers 3-5-6
20 Severn School Admirals 1-2-3 def. Archbishop Spalding Cavaliers 4-5-6
21 Severna Park Falcons 1-2-3 def. St. Mary's High School (MD) Saints 4-5-6
22 St. Mary's High School (MD) Saints 1-2-3 def. Archbishop Spalding Cavaliers 4-5-6
23 Severn School Admirals 1-2-3 def. Kent Island High School Buccaneers 4-5-6
24 Key School Zags 1-2-4 def. South River High School Seahawks 3-5-6
25 Severna Park Falcons 1-2-5 def. Archbishop Spalding Cavaliers 3-4-6
26 Kent Island High School Buccaneers 1-2-5 def. St. Mary's High School (MD) Saints 3-4-6
27 Severn School Admirals 1-2-4 def. Key School Zags 3-5-6
28 Severna Park Falcons 2-3-4 def. South River High School Seahawks 1-5-6
29 Archbishop Spalding Cavaliers 1-2-5 def. Kent Island High School Buccaneers 3-4-6
30 Key School Zags 1-3-4 def. St. Mary's High School (MD) Saints 2-5-6
31 Severn School Admirals 1-2-3 def. South River High School Seahawks 4-5-6
32 Severna Park Falcons 1-2-4 def. Kent Island High School Buccaneers 3-5-6
33 Key School Zags 1-2-3 def. Archbishop Spalding Cavaliers 4-5-6
34 St. Mary's High School (MD) Saints 2-3-4 def. South River High School Seahawks 1-5-6
35 Severn School Admirals 1-2-3 def. Severna Park Falcons 4-5-6
36 Key School Zags 1-4-5 def. Kent Island High School Buccaneers 2-3-6
37 South River High School Seahawks 1-3-4 def. Archbishop Spalding Cavaliers 2-5-6
38 Severn School Admirals 1-2-3 def. St. Mary's High School (MD) Saints 4-5-6
39 Severna Park Falcons 1-2-5 def. Key School Zags 3-4-6
40 Kent Island High School Buccaneers 2-3-5 def. South River High School Seahawks 1-4-6
41 Severn School Admirals 1-2-4 def. Archbishop Spalding Cavaliers 3-5-6
42 Severna Park Falcons 1-3-5 def. St. Mary's High School (MD) Saints 2-4-6
43 Severn School Admirals 1-2-4 def. Key School Zags 3-5-6
44 Archbishop Spalding Cavaliers 2-3-4 def. Severna Park Falcons 1-5-6
45 Severn School Admirals 1-2-3 def. Archbishop Spalding Cavaliers 4-5-6
46 Severna Park Falcons 2-3-4 def. Key School Zags 1-5-6
47 Key School Zags 1-2-6 def. Archbishop Spalding Cavaliers 3-4-5
48 Severn School Admirals 1-2-6 def. Severna Park Falcons 3-4-5

Conditions — 04/12/2025 (8am–6pm)

🌦️Light drizzle
Humidity 73%  ·  Pressure 1014.8 hPa

Temperature

47°F
↑ 51°F   ↓ 42°F
Feels like 40°F

Wind

● from   ▲ toward
10.6 kn
avg  ·  max 12.4 kn
Gusts to 25.5 kn
From N (352°)

Sky & Precipitation

Cloud cover100% Sunshine1.2 hrs Humidity73% Pressure1014.8 hPa Rain0.04 in

What this breeze does at South River — from fleet racing

Breeze: N about 12 kn (weather reanalysis in the scorer’s units)
In fleet races at South River in this breeze: a typical day (+0.01)
Nothing in this breeze favours either side in fleet racing here: results follow the ratings about as 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 ±0.01 means a rating gap counts about 1% 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 South River by wind direction (angle) and speed (rings), fitted surface; dots are labelled regatta-days, ★ this regatta (no labelled days at South River: 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 →