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Seven2Offsuit

Preflop matchups

JJ vs TT: preflop equity

JJ is a big favorite over TT.

JJ

vs

TT

JJ wins

81.8%

Tie

0.4%

TT wins

17.8%

JJ has 82.0% 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 TT combination that doesn't share a card with JJ.

Try it on a board in the Odds Lab

Questions

Who wins more often, JJ or TT?
JJ is a big favorite over TT. All in before the flop, JJ wins 81.8% of the time, TT wins 17.8% and they tie 0.4%.
What is JJ's equity against TT?
82.0%. Equity counts a tie as half a win, so it is the share of the pot JJ 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.