runner-runner odds

[nossodo]

Can anyone give me the odds for the making your hand when you need

-runner-runner for a flush
-runner-runner for a straight (your 3 cards are not in sequence so you need to get exactly, say a queen and a ten)
-both above combined

I've heard that a runner-runner counts for about 1,5 outs, is that correct or is there another figure or easy way to count.

[Superior]

it's all dependent on how many of the cards you need are in the deck. Then it's: (that #/47) * (# of other card/46) = odds.

[CrunchyNuts]

Flush: There's 10 out there, so 10/47 * 9/46 = 4.2%
Runner-runner gutshot straight: 8 on the turn, 4 on the river. 8/47 * 4/46 = 1.5%
Both is much more complicated and I'm in a rush, so maybe I'll revisit later.

[EricE]

Use the resources on this site.

There is another one on this site somewhere. Check the stickies in the strategy section too.
http://www.flopturnriver.com/chart_pot_odds.html

[Element187]

odds are like slim to none

backdoor flush draws are worth 1.5 outs