Parents and others wondering whether their local schools have biological males playing girls sports, take note: There’s a map for that.

The American Parents Coalition has launched an interactive map on its website showing “instances across the country where boys have been allowed to participate in girls sports and have access to private spaces such as locker rooms, bathrooms, and showers.”

The “Attack on Girls’ Sports and Spaces” map links to reports of athletes in high school and collegiate sports playing on female teams based on gender identity rather than sex.

Alleigh Marre, the coalition’s president, said that the goal is to “highlight that this issue is not isolated and is happening nationwide.”

“Gender activists have attempted to normalize radical gender ideology at the expense of biological reality, fairness, and privacy,” she said in a statement. “American parents have dealt with the fallout, seeing boys in their daughters’ sports, locker rooms, and private spaces at schools and also organizations like the YMCA.”

A number of women’s sports advocates track biological males in female athletics, including the Independent Council on Women’s Sports and HeCheated.org, although the coalition may be the first to record such instances using a 50-state map format.

Transgender athletes have been increasingly limited to blue states, as red states pass laws banning them from competing in female scholastic sports. So far 29 states have approved laws or policies requiring athletes to compete based on sex, not gender identity.

In the last year, the two largest collegiate sports authorities – the NCAA and the NAIA – have revised their eligibility policies to exclude biological males from female sports.

President Trump has threatened to cut federal funding to states that allow biological males in girls sports, while the Supreme Court is expected to take up the issue in its next term after agreeing to hear legal challenges to the Idaho and West Virginia bans.

Ms. Marre said she hopes the map will be used as a “resource for concerned parents and policymakers as we work towards ensuring safety and fairness through the proper protection of girls sports and spaces.”

“Parents’ concerns about the safety and fairness of girls competing against biological males in sports, or forcing girls to shower, change or even share overnight cabins with biological males, are legitimate and must be taken seriously by policymakers,” she said.

• Valerie Richardson can be reached at vrichardson@washingtontimes.com.