What version of softball is played in American schools?

I am looking to coach softball in North American middle or high schools and would like to know which version of softball (fast or slow pitch) is played, or most commonly played. Thanks!|||Fast pitch is played in high school and college. Slow pitch is more of a sport for adults.|||fast pitch|||fast pitch. you usually start playing fast pitch when you are about 9 or 10|||fast|||fastpitch|||Fast pitch


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I play softball i wish i could play baseball but no teams will let girls play = (