Charles Field

Regatta	Role	Div	Races	Avg	Rating
Spring 2010 Team page Season
Oberg Trophy	Skipper	B	7	10.1	0.81
Longfellow Invitational	Skipper	A	13	4.8	2.36
George Morris Trophy	Skipper	B	3	10.0	0.82
Boston University Trophy	Skipper	A	4	7.2	1.47
Fall 2009 Team page Season
The Crews Regatta	Crew	B	5	2.6	—
Spring 2009 Team page Season
Oberg Trophy	Skipper	A	18	10.1	1.52
Central Series 5	Skipper	A	11	3.6	2.49
Fall 2008 Team page Season
Smith Trophy	Skipper	B	8	13.9	1.20
Oberg Trophy	Skipper	C	17	10.5	1.16

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.