Marblehead High School Marblehead High School

Fall 2025 Regattas

Regatta Type Finish
2025 Arnold Brown Regatta Fleet Race 3 / 12
Casco Bay Open Fleet Race 2 / 13
Duxbury Bay Maritime School Invitational Fleet Race 6 / 17

Roster – Fall 2025

Class of 2028
Grafton Hamilton
Class of 2027
Will Piper

Skipper Rankings – Fall 2025

#SkipperRating League
percentile
Team
percentile
Races
1Db Murray2.4593.1783.3314
2Thomas Svencer2.0589.6350.0012
3Grafton Hamilton1.2075.7016.674

Skippers with at least 4 rated boat-races this season, ranked by their rating after their last race of the season. Percentiles count ties as half.

Crews this season (too little racing to rank)*

Crew*RatingRange Races this seasonCareer races
Grafton Hamilton*2.06Rating 2.06; 90% range -1.4 to 5.5; team skipper average 1.901224
Tyler Dana*–not enough data to rate1414
Will Piper*1.75Rating 1.75; 90% range -1.7 to 5.2; team skipper average 1.90427

This team had fewer than 3 crews with 8 or more races, so crews are listed, not ranked, and rated against the average of the crews listed. How to read the Range column: the dot is the rating, the shaded band is where it plausibly sits (90% range), and the dashed line is the team's skipper average. A wide band means little evidence, and bands that overlap mean the crews cannot be told apart. Ratings are on the skipper scale: the team's skipper average plus each crew's difference from their teammates, multiplied by 18.7 so a team's crews spread out like its skippers. Crews on one team differ far less than skippers do, so each band is about as wide as the spread: use the ratings to line crews up across teams, not as a ranking within a team. Ranked crews have at least 8 races this season; * means low evidence (under 8 races this season, or under 30 career races with rated skippers). League percentile also reflects how strong the team's skippers are.