Gianna Dewey

Rating History

Crew Rating

Crew effect over their career (not scaled to a team): 20.18 league percentile among ICSA crews with 30+ races (uncertainty ±0.102 rating points, on a spread of about 0.04 between crews; 70 races with rated skippers).

Season Team Rating Range League
percentile
Team
percentile
On team Races Team page
Spring 2023 Hampton Roads Academy 0.60 Rating 0.60; 90% range -2.3 to 3.5; team skipper average 2.11 29.45 6.25 8 of 8 22 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.

Singlehanded & Keelboat Ratings

DisciplineRating Rank RacesLast raced
Singlehanded2.06138 of 24677Fall 2026

Each discipline has its own scale, built from the sailor's main rating and their results in that discipline (see the rankings page for how); the numbers are not comparable with the main rating or with each other.

Regatta Role Div Races Avg
Spring 2023 Team page Season
VISA Team Championship Crew TR 8 62%
VISA Hampton Roads Academy Fleet Regatta Crew A, B 1 1.0
VISA Girls Championship Skipper A 9 8.8
VISA Christchurch Regatta 3/25 Skipper A 4 7.5
Phebe Corckran King Invitational Crew B 8 3.0
National Invitational Tournament (Founders Trophy) Crew TR 17 53%
MASSA Team Race Championship Crew TR 15 40%
MASSA Fleet Championship & Mallory Qualifier Crew B 9 9.9
VISA HCS/Heritage Fleet Race Crew A 4 3.5
Fall 2022 Team page Season
VISA Team Champs Crew TR 12 58%
VISA TCIS Championship Crew B 7 3.3
VISA State Fleet Race Championship Crew B 9 6.9
VISA Poquoson Fleet Regatta. Crew B 7 4.0
VISA Maury Team Race Regatta Skipper TR 14 36%
MASSA Fall Gold Fleet Champs [ACC Qualifier] Crew B 6 9.0
MASSA Fall 2022 Team Race Championship Crew TR 22 50%
2022 MASSA Fall Girls Invitational Championship Crew A 16 12.2

Related Sailors

League Name School Year
ICSA Gianna Dewey Old Dominion UniversityOld Dominion University '27
ISSA Gianna Dewey Bainbridge High SchoolBainbridge High School '23