With all the forum crashes lately, I'm going to start duplicating my input to good threads on Bigsoccer's youth and high school forum.
http://www.bigsoccer.com/forums/youth-hs-soccer.83/
thread at the top of the list is titled
Girls team played against a boy transitioning to girl
http://www.bigsoccer.com/forums/youth-hs-soccer.83/
thread at the top of the list is titled
Girls team played against a boy transitioning to girl