There are several winning combinations in vdeo poker games and the chances of getting them are also different. The chance of getting Royal Flush is 40,000:1. The chance of getting Straight Flush is 10,000:1. 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. 13:1 is a chance of getting a Three of a Kind. Only one of 8 combinations can be a Two Pairs. 5:1 is a chance of getting a High Pair. Internet Straight Poker Tips.