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How do you properly calc heads up play in terms of favorites to win ? For example 7-7 vs KJ Pre Flop. If this is elsewhere just point me in the direction.
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Proper heads up
play is a difficult question, and there is no easy right answer in general.
Calculating what is called
all-in equity -- which is also the perecentage of times each hand wins when it goes to a showdown -- is done by enumerating over all possible board cards.
This is a gargantuan task to do by hand, but thankfully there is a free program that does it for you:
www.pokerstove.com
gm