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Seven2Offsuit

Preflop matchups

99 vs AKo: preflop equity

99 is a slight favorite over AKo.

99

vs

AKo

99 wins

55.1%

Tie

0.4%

AKo wins

44.5%

99 has 55.3% equity, which counts a tie as half a win. The numbers are exact: every one of the 1,712,304 possible boards is counted for each suit combination, not simulated. Suits are shown as examples; the result is averaged over every AKo combination that doesn't share a card with 99.

Try it on a board in the Odds Lab

Questions

Who wins more often, 99 or AKo?
99 is a slight favorite over AKo. All in before the flop, 99 wins 55.1% of the time, AKo wins 44.5% and they tie 0.4%.
What is 99's equity against AKo?
55.3%. Equity counts a tie as half a win, so it is the share of the pot 99 takes on average.
Are these odds exact?
Yes. Every one of the 1,712,304 possible five-card boards is counted for each suit combination, so there is no simulation error.