Poker odds

[McG]

Dear All Firstly, apologies if I've posted this in the wrong section. Any idea on where I can find details on the odds of particular hands cropping up in Texas Hold'em? Our regular monthly home game (6 players, about 100 hands a night) has a separate pot for the person having a straight flush, and it lasted about a year before going last month. I have googled and seen the odds of having a straight flush in regular 5-card poker is 72,192-1. So is it simply a case of including the other 2 cards as variants (bringing the odds down by a factor of 21 to about 3,437-1). All help gratefully received. McG :gimme

[slapdash]

Re: Poker odds

I have googled and seen the odds of having a straight flush in regular 5-card poker is 72,192-1. So is it simply a case of including the other 2 cards as variants (bringing the odds down by a factor of 21 to about 3,437-1).

Almost. But you have to adjust slightly for the fact that a 7-card hand can have more than one 5-card straight flush (e.g., if the hand is 3,4,5,6,7,8,9, all of the same suit, it has three 5-card straight flushes). This means the chance of at least one straight flush in the seven cards is a bit lower than the figure your calculation gives. I make the odds about 3,590-1.