TheBlaze last month highlighted a federal lawsuit filed by three biological female athletes who are challenging the Connecticut Interscholastic Athletic Conference's policy of letting biological males compete in girls' sports.
The conference lets athletes compete according to their identified genders and bases the policy on state law requiring schools to treat students similarly, the AP said.
The CIAC also noted that its policy follows Title IX, the federal law that gives girls equal educational opportunities, including in athletics, the outlet added.
Miller won that race with a state record time of 6.95 seconds, the Associated Press reported.
And forcing girls to be spectators in their own sports is completely at odds with Title IX, a federal law designed to create equal opportunities for women in education and athletics.