Not much, you really just lose, lol. This particular contest is $2 entry fee and is a double up so you win $4. Only problem is 25 people win and 31 lose - the house always wins as it would only be fair if 50 people entered and top half won double. Over long haul, you will just lose your money! Hehe, I still play for fun and have lost like $100 over the last few years playing small games like this... no biggie.