rule of 4 and 2

• Bronze
Joined: 26.02.2009
Hi there

I have a question that's bugging me about the 4 and 2 rule - in particular the 4 rule.

Say I have 19 outs on the flop. Well then the 4 rule says that my percentage chance of winning that hand by the river is roughly 19*4 = 76%.

But all the odds charts I have seen put 19 outs at 65%.

Can someone please explain this discrepancy to me?

Cheers

Stef :-/
• 3 replies
• Bronze
Joined: 07.01.2010
For the solomon "4x rule" only, when you have MORE than 8 outs, you subtract any extra outs over the initial 8 from the final percentage.

19outs is 11outs over and above the first 8. (19-8= 11)

19*4= 76

now subtract 11

76-11= 65%

***If you only have 8outs or less to begin with, then you don't do this.

That should bring you to a closer rough estimate.

Cheers
Joined: 30.06.2010
Hey notgodzod,

Outs times 4 is just a rough rule of thumb.

If you have more than 8 outs there is a better rule:

(number of outs * 4) - (number of outs - 8) = Equity