Qustion about calculating Equity

    • lkdr9494
      Joined: 26.01.2012 Posts: 210
      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
    • 7h3r1pp4
      Joined: 21.12.2008 Posts: 816
      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 :f_biggrin:

      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.
    • VorpalF2F
      Super Moderator
      Super Moderator
      Joined: 02.09.2010 Posts: 10,130
      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.

      Download Equilab and learn to use it.

      A lot of articles on Equity make use of it.

      All the best,