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JJ vs 66 equity

Preflop, JJ beats 66 with exact equity 80.97% vs 19.03%: JJ wins 80.77%, 66 wins 18.84%, ties 0.38%. Computed by exhaustively enumerating all 10,273,824 deals.

JJ Win80.77%
66 Win18.84%
Tie0.38%
JJ Equity (win + tie/2)80.97%
66 Equity (win + tie/2)19.03%
Boards enumerated10,273,824
Suit combinations6
Losing frequencyJJ loses 1 in 5.3

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, JJ or 66?

JJ is ahead: JJ has 80.97% equity vs 19.03% (exact enumeration).

How often do JJ vs 66 tie?

Ties occur 0.38% of the time (39,498 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, “JJ vs 66 equity”, pailiku.com/matchups/jj-vs-66 (2026).