HIgh School Rules Question

[evrclear02]

Got in an argument with a ref today in my work league, which goes by High School Rules about the following simple play:

I was inbounding the ball underneath my own basket after the other team turned the ball over. I threw the ball to my teamamte who was on our side, but the ball got past him and went into the opposing teams side of the court. My teammate did not touch the ball until it was on the other side. Is this over and back?

Thanks.