Two Royal Flushes (Archive) - Straight Dope Message Board.
The odds of being dealt a royal flush in poker are 1 in 649,740, according to a mathematician at Central Washington University. You’re also more likely to suffer some sort of unusual death.

For example, if you already have 3 cards making up a royal flush, your odds of landing a 4th card that’s part of the royal flush are about 2 in 47. Nonetheless, your odds of getting cards that make up a royal flush in both the 4th and 5th deals are 1 in about 1081.

In Pair Plus, the big rewards come when you’re dealt a straight flush or three of a kind, or in some casinos, a mini-royal.Payoffs may vary in different casinos, but all start at 1-1 on a pair. At the top of the pay table, a straight flush usually brings a 40-1 payoff and three of a kind brings 30-1.

Let’s assume that you are playing 5-card poker, and that you don’t get to discard. Then your question is equivalent to asking, “What is the probability of being dealt 5 cards that are a straight flush?” To get this probability, we count the number.

How To Work Out Flop Probability In Texas Holdem. In the previous article on working out preflop hand probability, we worked out the likelihood of being dealt different combinations of starting hands before the flop. In this article, I will cover the basics of working out the probabilities behind various possible flops. I'll go ahead and cover the probability basics first in case you missed.

A royal flush might be doable, but getting several royal flushes in a row is a 1 in 957,000,000 chance. The SuperEnalotto jackpot looks much more attainable in comparison—and you don't even need to sit through several nerve-wracking rounds of bluffing to have a good shot.

The only way to lose with a King high straight flush is to a royal flush of the same suit. That means that the KQJT must all be community cards. The last community card is either the 9 or you have it as a pocket card. Case 1: 9 is on the board.The odds of this are the same as getting dealt a royal flush in 5 card stud.