Grant Barton

Rating	Rank	vs fleet rating	Record
0.15 (fleet 0.25)	unranked (fewer than 30 matches as skipper, or not active)	−0.00 ± 0.18 about what the fleet rating predicts	as skipper 3–9 (25%)

Season	Regattas	Skipper W–L	Crew W–L
Spring 2015	1	3–9	—

Regatta	Role	Div	Races	Avg	Rating
Spring 2015 Season
NWISA Islands Cup	Crew	A	2	25.5	—

League	Name	School	Year
ISSA	Grant Barton	Nikola Tesla STEM High School	'16

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.