im from orange county, but live in SC (dirty south ya heard me.) Naw for some reason it sounded like you were english or something? i dont know, lol nevermind.
make sure your hand is all nasty sweaty... the opponent won't want to hold onto it for long... and the sure fire way to win, even if you lose... have something smelly on your hand, so after you're done, the other guy will be like "WTF is that smell?" all day ;)
aw, i was just gonna mention my idea =( oh well...here it is anyways, got it from a movie...
bribe both guys who make it to the last round of the competition to lose. when neither of them do anything, collect on the bets you made w/ everyone that it would be a draw.
here's a REAL tip. it works with practice. if you feel you're about to lose, or if your arm gets tired, cock your wrist back but keep tension on your elbow. when you cock your wrist back as far as it can go, the only way for him to beat you is to press your hand straight down, which is physically impossible unless he rips your hand off. the downside to this is you can't attack him either, so when you gain enough strength, push your wrist back up (which is no easy feat) and go back at it. practice.