J5s vs random hand equity
J5 suited has exact preflop equity 49.99% vs a random hand (win 47.82%, tie 4.33%, lose 47.85%), ranking 90 of 169 starting hands. Derived from exhaustive enumeration over all 1,225 opponent combos × C(48,5) boards.
| Win | 47.82% |
|---|---|
| Tie | 4.33% |
| Lose | 47.85% |
| Equity (win + tie/2) | 49.99% |
| Rank among 169 hands | 90 / 169 |
| Boards enumerated | 2,097,572,400 |
Note: class-average values. Specific suit combinations (e.g. shared suits) shift the numbers by a few tenths of a percent.
Best 5 opponents / Worst 5 opponents
| Best 5 opponents | T5o（74.85%）、95o（73.44%）、52o（73.22%）、85o（72.01%）、53o（71.60%） |
|---|---|
| Worst 5 opponents | JJ（12.54%）、QQ（16.78%）、AA（17.05%）、KK（17.06%）、AJs（27.56%） |
FAQ
Is J5s a good starting hand?
J5s has 49.99% equity vs a random hand, ranking 90 of 169 starting hands (exact enumeration).
Which hands does J5s fear most?
Toughest opponents for J5s: JJ (J5s equity 12.54%), QQ (J5s equity 16.78%), AA (J5s equity 17.05%), KK (J5s equity 17.06%), AJs (J5s equity 27.56%).
What does "vs random hand" mean?
The opponent holds any two of the remaining 50 cards with equal probability (1,225 combos); figures are the weighted exhaustive average over all of them.
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, “J5s vs random hand equity”, pailiku.com/matchups/j5s-vs-random (2026).