Mack Purvis

Career: 54.22 percentile of ICSA crews (limited evidence)

No season rating yet: needs 8+ crewed races in a season.

Regatta	Role	Div	Races	Avg	Rating
Spring 2024 Team page Season
Wet & Cool Regatta	Skipper	B	10	5.8	0.32
Fall 2023 Team page Season
2023 Fall Brawl	Skipper	B	4	3.8	0.74
Spring 2023 Team page Season
Wet & Cool Regatta	Crew	B	8	3.5	—

League	Name	School	Year
ISSA	Mack Purvis	Unregistered SEISA	'29

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.