JJ vs 99
Preflop odds, heads-up Texas Hold'em
JJ
J♠J♥
81.0%
99
9♦9♣
19.0%
JJ is the favorite: it wins about 81.0% of the time against 99 when both hands go to showdown, with ties 0.4% of runouts.
Computed from 400k simulated deals with the hands shown above.
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