rule of 4 and 2

    • notgodzod
      notgodzod
      Bronze
      Joined: 26.02.2009 Posts: 2
      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
    • bunjow
      bunjow
      Bronze
      Joined: 07.01.2010 Posts: 12
      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.

      So, for your example:
      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
    • HannesZ
      HannesZ
      Headadmin
      Headadmin
      Joined: 30.06.2010 Posts: 16,311
      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

      So in your example:
      (19 * 4) - (19 - 8) = 65.

      Beste regards,
      Hannes

      edit: bunjow was a little bit faster. Thanks for your answer.
    • notgodzod
      notgodzod
      Bronze
      Joined: 26.02.2009 Posts: 2
      Hey guys thanks so much that was a great help

      :D