Delaney Bloom

Crew Rating

Crew effect over their career (not scaled to a team): 52.23 league percentile among ISSA crews with 30+ races (uncertainty ±0.115 rating points, on a spread of about 0.04 between crews; 27 races with rated skippers). Limited evidence: with this few races the estimate stays close to the middle of the pack.

Season	Team	Rating	Range	League percentile	Team percentile	On team	Races	Team page
Spring 2025	Mamaroneck High School	1.79		80.48	75.00	2 of 6	8	Team page
Fall 2024	Mamaroneck High School	1.51		80.01	64.29	3 of 7	11	Team page

How much better or worse boats do with this sailor crewing than their skipper's rating predicts. The rating is on the skipper scale: the team's skipper average plus the crew's difference from their teammates, multiplied by 18.7 so a team's crews spread out like its skippers. Crews on one team differ far less than skippers do, so the band is about as wide as the spread itself: use the rating to line crews up across teams, not as a ranking within a team. In the Range column the dot is the rating, the shaded band is where it plausibly sits (90% range) and the dashed line is the team's skipper average; a wide band means little evidence. League percentile ranks the rating among all rostered crews in that league and season; team percentile ranks it among the crews on the same team that season (the share of teammates it beats, counting ties as half). Both use the skipper-scale rating, so the league one also reflects how strong the team's skippers are.

Regatta	Role	Div	Races	Avg
Spring 2026 Team page Season
NYISA-SE WaterFront Center Spring Open 1	Crew	A	5	6.6
Fall 2025 Team page Season
NYISA-SE Fall Team Race Championship 2025	Crew	TR	8	62%
NYISA-SE Fall Fleet Championship 2025	Crew	B	3	4.3
Spring 2025 Team page Season
NYISA-SE ice breaker	Crew	B	2	2.0
NYISA-SE LYC Spring Invite	Crew	B	6	4.7
Fall 2024 Team page Season
MASSA Fall Fleet Championship	Crew	A	11	15.6