Oregon high school students seek ban on transgender athletes with federal lawsuit – oregonlive.com:

The plaintiffs, however, argue Oregon rules violate Title IX, the landmark 1972 law that banned discrimination based on sex in educational settings.

Due to the inclusion of transgender athletes, the plaintiffs “placed lower in the Oregon high school statewide rankings and were not recognized,” according to the lawsuit….

That would be correct. But this will probably be adjudicated nationally at the US Supreme Court level next term. 

Also note: The suit does not ban transgender athletes. It seeks to keep boys from participating in girls’ sports. That’s it. Boys’ sports remain an open category in which the individuals in question can participate.