Roger Dorr

Discipline	Rating	Rank	Races	Last raced
Keelboat	1.61	unranked (fewer than 10 races or not active)	1	Fall 2017

Rating	Rank	vs fleet rating	Record
2.41 (fleet 3.89)	unranked (fewer than 30 matches as skipper, or not active)	+0.00 ± 0.18 about what the fleet rating predicts	as skipper 11–6 (65%)

Season	Regattas	Skipper W–L	Crew W–L
Spring 2014	1	11–6	—

Regatta	Role	Div	Races	Avg	Rating
Spring 2014 Team page Season
NESSA Championship / O'Day Trophy	Skipper	A, B	14	5.6	A 0.85 · B 1.08
Mallory Trophy - ISSA Doublehanded	Skipper	A	11	5.5	2.43
Baker Trophy-ISSA Team Race Champs	Skipper	TR	17	65%	—

League	Name	School	Year
ICSA	Roger Dorr	Georgetown University	'18
ICSA	Roger Dorr	George Washington University	'18

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.
Play 1, Play 2, Play 4: how team races are wonHow often each play happens, how that shifts with breeze and level, and whether a star wins differently.