Jackson Mapp

Career: 48.48 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
Fall 2024	York High School	-0.36		24.26	62.50	2 of 4	29	Team page

Regatta	Role	Div	Races	Avg	Rating
Fall 2024 Team page Season
VISA York County JV Fleet Race Regatta	Crew	A	7	6.9	+0.30
VISA Poquoson JV Fleet Regatta	Crew	A	6	7.5	-0.02
VISA JV Fleet Championship	Crew	A	9	8.1	-0.20
VISA Christchurch JV Fleet Regatta	Crew	A	5	8.2	-0.19
VISA Cox, Catholic, PC JV Fleet Regatta	Crew	A	2	3.0	+0.20

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.