Straight Flush: Five cards in numerical order, all of identical suits. Straight. In the event of a tie: Highest rank at the top of the sequence wins. The best possible. Poker hands: check out what beats what in Texas hold'em with our poker would be an eight-high straight flush and practically unbeatable. In poker, players construct sets of five playing cards, called hands, according to the rules of the . A straight flush is a poker hand containing five cards of sequential rank, all of the same suit, such as Q♥ J♥ 10♥ 9♥ 8♥ (a "queen-high straight.