Well I really don't want to go any deeper into this topic at the risk of knocking other people's faith, but honestly it doesn't work like that. You don't get extra help in sporting events because you pray to a particualar diety. As I said before though those who believe in it strongly enough are provided motivation from the simple belief itself that maybe God will entertain their notion that day. It praying to your higher being makes you beleive you are going to win, and you do, that works out fine, but what happens when you lose? Does that mean that "Well maybe it wasn't in his plans for you to win?" Its silly conjecture, I see the pre match prayer as nothing more than a motivational warmup and that is the sole reason why I think it should be allowed. There are more important things in life to pray for than winning a wrestling match at (insert random tournament here), like health and family. I say keep on praying if thats what you believe can help you win.