Katherine Perriello

Career: 41.44 percentile of ICSA crews (limited evidence)

▲ boats did better with this crew than with the skipper's usual crews▼ worseArrow length = size of the push, in rating points

Season	Team	Rating	Range	League percentile	Team percentile	On team	Races	Team page
Spring 2025	William and Mary	-0.45		13.57	64.29	3 of 7	10	Team page

Regatta	Role	Div	Races	Avg	Rating
Spring 2025 Team page Season
W&M Spring Open	Crew	B	6	4.5	+0.13
CNU Women's Women's	Crew	A	4	10.2	-0.18
Fall 2022 Team page Season
Webb/Wollum	Skipper	A	10	12.8	—
Spring 2022 Team page Season
Spring Open	Crew	A	2	6.0	—

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.