# PS automatic odds calculator

• Bronze
Joined: 03.04.2011
Hello,

Are there any free odds calculating programs which pokertars allow to use?
Could you give me a link to the trusted site? Or it's forbidden? )

Thank you!
• 6 replies
• Super Moderator
Super Moderator
Joined: 02.09.2010
Hi, Needlesky,
I'm guessing not -- since PokerStars forbids software that makes decisions for the player.

But on the other hand, knowing how to do it yourself is one of the critical skills of poker.

Have a look at The Basics: Odds & Outs which explains how.

I just had a scan of it looking for "The rule of Four and Two" but could not find it.
Nope -- that is in here: Mathematics of Poker: Odds and Outs

I *think* that the second article is available to bronze status -- If I'm wrong let me know.

Also, I think that the 2nd article is old -- I could not find a link to it -- I had to search for it.

Best of luck,
VS
• Super Moderator
Super Moderator
Joined: 02.09.2010
Hi, Needlesky,
I just did some more digging, and found that the Rule of 4 & 2 is not in the article, but in a comment.

Basically it is this:

Chance on the flop of hitting by the river: Flop outs x 4
Chance on the turn of hitting on the river: Turn outs x 2

This is a VERY rough approximation, but it is close enough. Remember implied odds, too.
You also need to be really aware of "poisoned outs".
"Poisoned out" are what I call outs that give you one hand but give opponent better.

Example:
You hold 7:d6
Flop is 8:h9:h2

The T makes both flushes and better straights so have *reverse* implied odds.

Cheers,
VS
• Bronze
Joined: 16.11.2010
Originally posted by VorpalF2F
Basically it is this:

Chance of hitting on the turn: Flop outs x 4
Chance of hitting on the river: Turn outs x 2

This is a VERY rough approximation, but it is close enough.
Actually outs x 4 is from flop to river which is 2 streets.
• Super Moderator
Super Moderator
Joined: 02.09.2010
Thanks baboKeisari,
You are quite correct, and I've edited the post so the correct information is there.

Cheers,
VS
• Bronze
Joined: 16.11.2010
Np.
• Bronze
Joined: 03.04.2011