Different winning combination have different chances of coming out. Only one of 40,000 combinations can be a Royal Flush. 10,000:1 is a chance of getting a Straight Flush. Only one of 423 combinations can be a Four of a Kind. 86:1 is a chance of getting a Full House. Only one of 93 combinations can be a Flush. 85:1 is a chance of getting a Straight. The chance of getting Three of a Kind is 13:1. The chance of getting Two Pairs is 8:1. The chance of getting High Pair is 5:1. Animated Poker Flush.