Fair nuff. Just a random thought on probability, but could u ensure no loss by betting on both players of the same match? ;p
If fed wins he gets back his #1, go federe!
No, there will always be 1 player, with his/her odds below $2 in a head to head match in order so you can't break even or win
As a degen gambler, you can achieve this (it's known as arbitrage) by using different bookmakers and locking in different odds for different bets that way. There's a lot of money to be made in this situation if you can leverage whatever small edges you find
And when people were talking about bookmakers setting odds, that's where the whole edge/odds formula comes from, which is meant to tell you when to bet (ie when you think the bookmaker has miscalculated the odds or when you think you have information that is relevant).
If you want to have a read about it, Fortune's Formula by Poundstone is pretty good, or you can just google Kelly Criterion