According to the team rosters published by swimmingrank.com, Minnesota Swimming (MN) has significantly more girls than boys for every age from 7 to 17.



Aggregating athletes by age group shows that MN has significantly more girls than boys in every age group.


The fraction of female athletes in Minnesota Swimming age groups varies from 0.62  to 0.66.



Equivalently, the ratio of girls to boys in Minnesota Swimming age groups varies from 1.60 to 1.93.