Roy Ingham

Regatta	Role	Div	Races	Avg	Rating
Fall 2013 Team page Season
SAISA South Points #2	Skipper	A	2	3.5	1.73
SAISA South Points #4	Crew	A	4	3.5	—
SAISA South Points #5	Skipper	A	6	4.8	0.68
SAISA Open	Skipper	B	5	8.8	0.81
Spring 2013 Team page Season
SAISA South Points #4	Skipper	A	8	5.1	0.88
SAISA South Points #2	Skipper	A	4	2.5	2.07
SAISA Open	Skipper	A	11	10.2	0.61
SAISA Conference Championships	Skipper	A	12	8.1	1.11
MAISA/SAISA	Skipper	A	10	8.4	1.15

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.