great idea for a tournament!
okay since my post wasn't completely clear before, here's it rephrased.
towards all the people who are betting on easy matches, i'd just like to remind you that you will probably not be earning much per correct prediction. the way i read it, all of the people who predicted correctly SPLIT the money bet by all the people who predicted incorrectly. so if you bet on easy matches youll be earning like 5 points or something (assuming that say 20 people bet on the winner and 2 on the loser). risks are lower but so are rewards.
thats why i was suggesting that you guys should predict on the close matches, risks are higher but so are rewards!