William O'Neil

Career: 85.39 percentile of ICSA crews

▲ 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 2026	Grosse Pointe South High School	1.07		67.54	73.08	4 of 13	47	Team page

Regatta	Role	Div	Races	Avg	Rating
Spring 2026 Team page Season
Tulip Regatta	Crew	A	6	5.0	+0.24
MISSA NE May Flowers Regatta	Crew	A	9	3.7	+0.46
2026 ISSA Phebe Corckran King Memorial Trophy	Crew	A	13	10.7	+0.35
Ice Breaker Regatta	Crew	A	5	4.6	-0.06
Capitol City Regatta	Crew	A	6	2.0	+0.51
2026 Sandusky Spring Legends Regatta	Crew	A	8	3.5	-0.03
Fall 2025 Team page Season
Turkey Leg Regatta	Crew	A	4	9.0	-0.36
Olentangy Invite	Skipper	A	2	14.5	-1.20
CSS Halloween Regatta at PYC	Skipper	A	7	12.9	-0.28

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.