JJ vs T9s: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| JJ (Pocket Jacks) | 81.6% | 0.4% | 81.8% |
| T9s (Ten-Nine Suited) | 18.0% | 0.4% | 18.2% |
JJ against T9s is the "big pair vs live cards" matchup. The pair dominates the raw numbers — 81.6% to 18.0% with 0.4% ties — but suited connectors are the best-equipped hand class to crack it: two live ranks, straight potential, and a flush draw mean they win roughly one time in four or five, more than most dominated high-card hands can manage.
In equity terms — your long-run share of the pot counting split pots as half — JJ holds 81.8% and T9s holds 18.2%. To make these numbers practical: facing a pot-sized all-in you need about 33% equity to call profitably, and a half-pot bet needs about 25%. Numbers on this page are exact, computed by full board enumeration (not simulation). Try any other hand or full ranges in the free equity calculator.
JJ vs T9s FAQ
Who wins JJ vs T9s preflop?
JJ (Pocket Jacks) is the favorite: it wins 81.6% of all runouts, while T9s (Ten-Nine Suited) wins 18.0%. The remaining 0.4% are split pots. Counting splits as half, JJ's preflop equity is 81.8%.
How often does T9s beat JJ?
T9s wins 18.0% of the time all-in preflop against JJ — roughly 1 in 6 — so it needs good pot odds or fold equity to get the money in profitably.
Are these JJ vs T9s numbers exact?
Yes. They are computed by exhaustively enumerating every possible five-card board (1,712,304 boards per card combination) and averaging across all suit combinations of both hands — not by Monte Carlo simulation. Display values are rounded to one decimal place.
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