• Bronze
Joined: 26.01.2012
To take same example on the article: http://www.pokerstrategy.com/strategy/others/2251/1/

(First example facing all in pre-flop)

I don't seem to understand how to calculate equity against my opponent's range. If my hand is QQ (given I need 40% equity to break even) and opponent's range is (JJ+, AK) is there a way to calculate my equity agaisnt my opponent's range? In the article just says is 47%. So I'm confused about if there's way to actually calculate it? Or can it only be done by equilab?
• 2 replies
• Bronze
Joined: 21.12.2008
I think it can only be done with a tool like equilab.

If someone can calculate this in his head he must have a superbrain or something like that

On the other side if you have used equilab alot than you will have a feeling for how much equity you have against a xy range.
• Super Moderator
Super Moderator
Joined: 02.09.2010
Hi, lkdr9494...

Equilab is the tool for this.

Here is the output from your example:

Equity     Win     Tie
UTG    47.37%  45.79%   1.58% { QQ }
UTG+1  52.63%  51.05%   1.58% { JJ+, AKs, AKo }

The equation given is:
Required equity = price of calling / (pot size + price of calling)

The example is:
Preflop: Hero is Button with Q:dQ
3 folds, Hero raises to \$0.50, SB raises to \$2.00, 1 fold, Hero raises to \$5.00, SB raises to \$25.00 and is all-in, Hero?

At this point the pot is 25 (from SB) 0.25 (from BB) and \$5.00 from Hero making \$30.25

The price of calling is 20.00 (you already have \$5 in there)
So the required equity is

20/(20+30.25) = .40

Your equity is GREATER than this so it is a call.

If your opponent is REALLY tight -- and hardly ever shoves -- we might conclude that he only shoves KK+, in which case it is an easy fold.