Same way except come at it from his perspective.

He has 4 outs that can beat you, 2 As + 2 Ks, so 4 outs * 4 = ~16% chance to hit, so your Equity is 100% - 16% = ~84% (Actual is 83.23% so pretty close)

When the turn comes do the same thing but use outs * 2, so ~8% or 100-8% = ~92% (Actual is 90.91%)

Of course that only works if you know his hole cards. If you don't know his hole cards then you have to decide on a range of what cards he might have based on what you know about the player from prior betting history etc. I'm still in the process of learning that aspect so no advice from me there.

Once you have his range figured out you can use a program called Pokerstove www.pokerstove.com (it's free) to get the actual numbers for your hand versus villain's presumed range.


Using the rule of 4 and rule of 2 is generally close enough. It won't give you the same numbers as you see on TV, they take into account dead cards from other players hands when generating those numbers, but certainly good enough for the table. Pokerstove will do calcs with dead cards as well.