Tim Murphy

Regatta	Role	Div	Races	Avg	Rating
Fall 2009 Team page Season
Navy Fall	Skipper	B	14	10.0	2.84
The Hatch Brown Trophy	Skipper	A	18	8.7	3.02
68th Erwin Schell Trophy	Skipper	A	19	14.6	1.92
Spring 2009 Team page Season
80th Boston DinghyCup	Skipper	A	17	9.9	2.37
Fall 2008 Team page Season
68th Professor Schell Trophy	Skipper	B	18	7.7	2.79
Hatch Brown	Skipper	B	12	5.9	3.03

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.