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T9s vs 55 equity

Preflop, T9s beats 55 with exact equity 52.30% vs 47.70%: T9s wins 51.83%, 55 wins 47.23%, ties 0.94%. Computed by exhaustively enumerating all 10,273,824 deals.

T9s Win51.83%
55 Win47.23%
Tie0.94%
T9s Equity (win + tie/2)52.30%
55 Equity (win + tie/2)47.70%
Boards enumerated10,273,824
Suit combinations6
Losing frequencyT9s loses 1 in 2.1

Note: class-average values. Specific suit combinations (e.g. shared suits) shift the numbers by a few tenths of a percent.

FAQ

Who wins more often, T9s or 55?

T9s is ahead: T9s has 52.30% equity vs 47.70% (exact enumeration).

How often do T9s vs 55 tie?

Ties occur 0.94% of the time (96,489 of 10,273,824 outcomes).

Are these numbers simulated?

No. All 10,273,824 board combinations are exhaustively enumerated — mathematically exact and reproducible.

Figures from app/data/matchup-matrix (exhaustive engine scripts/gen-matchup-matrix.mjs, cross-validated against lib/poker-equity.ts)

Cite this page: Pailiku, “T9s vs 55 equity”, pailiku.com/matchups/t9s-vs-55 (2026).