There used to be MLB and NFL games set up. You pick the winner, and bet a certain amount of DNF on that team. If you lose, then you lose the betted amount of DNF. If you win, then you double up your DNF that you bet. I'm not sure how it worked for games with lines. All I know is that Oxen won alot of money from that, so that's why I think they stopped using it. Look at how much DNF he has.