Abigail Cosgrove

Regatta	Role	Div	Races	Avg	Rating
Fall 2019 Team page Season
MDISA Season Opener	Crew	A	3	12.0	—
MDISA JV Series 2	Skipper	A	2	6.5	1.03
MDISA JV FLeet Race at SMR	Skipper	B	2	7.5	-2.59
MDISA JV 1	Skipper	A	6	9.3	0.32
Spring 2019 Team page Season
2019 Maryland JV High School Championship	Skipper	A	2	14.0	—
Fall 2018 Team page Season
St. Mary's Ryken JV	Skipper	A	2	8.5	-0.63
SCC JV Fleet Regatta	Skipper	B	2	10.0	-2.15
SCC JV regatta	Skipper	B	2	15.5	-3.45
Kent Island JV #1	Skipper	B	3	8.3	-1.80
Fall MDISA JV Champs	Skipper	A	3	10.3	0.13

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.