JJ vs 99 equity
Preflop, JJ beats 99 with exact equity 81.61% vs 18.39%: JJ wins 81.40%, 99 wins 18.18%, ties 0.42%. Computed by exhaustively enumerating all 10,273,824 deals.
| JJ Win | 81.40% |
|---|---|
| 99 Win | 18.18% |
| Tie | 0.42% |
| JJ Equity (win + tie/2) | 81.61% |
| 99 Equity (win + tie/2) | 18.39% |
| Boards enumerated | 10,273,824 |
| Suit combinations | 6 |
| Losing frequency | JJ loses 1 in 5.5 |
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 99?
JJ is ahead: JJ has 81.61% equity vs 18.39% (exact enumeration).
How often do JJ vs 99 tie?
Ties occur 0.42% of the time (43,542 of 10,273,824 outcomes).
Are these numbers simulated?
No. All 10,273,824 board combinations are exhaustively enumerated — mathematically exact and reproducible.
Related
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 99 equity”, pailiku.com/matchups/jj-vs-99 (2026).