Truly idiotic, and will probably backfire because anyone can see there’s no risk to women. If you just had everyone take part in a single category, parkrun would be absolutely fine.

On a more detailed level, this seems like another body that thinks a ruling which says “organisations may choose to discriminate on the basis of sex in order to provide single-sex spaces for certain purposes” means “organisations must choose to so discriminate” which is unbelievably stupid. However, the media doesn’t seem to have understood that either so it’s no wonder.