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KK vs 55 equity

Preflop, KK beats 55 with exact equity 80.48% vs 19.52%: KK wins 80.28%, 55 wins 19.31%, ties 0.42%. Computed by exhaustively enumerating all 10,273,824 deals.

KK Win80.28%
55 Win19.31%
Tie0.42%
KK Equity (win + tie/2)80.48%
55 Equity (win + tie/2)19.52%
Boards enumerated10,273,824
Suit combinations6
Losing frequencyKK loses 1 in 5.2

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, KK or 55?

KK is ahead: KK has 80.48% equity vs 19.52% (exact enumeration).

How often do KK vs 55 tie?

Ties occur 0.42% of the time (42,726 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, “KK vs 55 equity”, pailiku.com/matchups/kk-vs-55 (2026).