Parlays: A parlay is a string of bets wagered as a single bet.The popular players in most games will have an over/under number for relevant statistical categories. Props: A prop is betting on an event that will happen in a game, like betting on whether player x will have more or less than x amount of yards.For example, the NCAAF championship winning team or the Heisman Trophy winner. Futures: A bet you can place at any time on something that will be determined on a future date.