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