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