Alexander Rosen

Career: 47.93 percentile of ICSA crews (limited evidence)

▲ boats did better with this crew than with the skipper's usual crews▼ worseArrow length = size of the push, in rating points

Season	Team	Rating	League percentile	Team percentile	On team	Races	Team page
Fall 2026	Northeastern University	2.30	72.06	36.67	10 of 15	22	Team page
Spring 2025	Northeastern University	1.53	54.18	19.23	11 of 13	12	Team page
Fall 2024	Northeastern University	0.77	37.17	10.71	13 of 14	39	Team page

Discipline	Rating	Rank	Races	Last raced
Keelboat	0.18	unranked (fewer than 10 races or not active)	4	Fall 2026

Regatta	Role	Div	Races	Avg	Rating
Fall 2026 Team page Season
Reece's Cup	Crew	B	3	1.3	+0.30
Peak Foliage	Crew	B	6	3.7	+0.09
Harman Cup Keelboat	Skipper	A	7	6.3	0.42
Callagy Ross '14 Regatta	Crew	B	13	8.9	-0.30
Spring 2025 Team page Season
O’Toole Sunday	Crew	B	6	3.5	+0.37
George Morris Trophy	Crew	B	6	6.2	-0.24
Fall 2024 Team page Season
Terrier Invite	Crew	A	6	12.8	-0.25
Sister Esther Trophy	Crew	B	14	11.9	-0.31
Reese's Cup	Crew	B	3	14.0	-0.14
Eagle Invite	Crew	B	1	18.0	—
Chris Loder Trophy	Crew	A	1	2.0	+0.11
Charles Invitational	Crew	A	8	9.0	-0.42
BU Invite	Crew	B	6	10.0	+0.08

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

How do skipper ratings work?A log-strength fitted to every race at once, smoothed week to week.
What a rating point is worthA one-point edge is a 73% chance to beat another boat in a race; two points is 88%.
How does a crew rating work?A crew rating is small and uncertain; a worked example on one roster.