J4s vs random hand equity
J4 suited has exact preflop equity 49.07% vs a random hand (win 46.87%, tie 4.40%, lose 48.73%), ranking 95 of 169 starting hands. Derived from exhaustive enumeration over all 1,225 opponent combos × C(48,5) boards.
| Win | 46.87% |
|---|---|
| Tie | 4.40% |
| Lose | 48.73% |
| Equity (win + tie/2) | 49.07% |
| Rank among 169 hands | 95 / 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 | T4o（74.86%）、94o（74.74%）、42o（73.39%）、84o（73.31%）、74o（71.94%） |
|---|---|
| Worst 5 opponents | JJ（12.14%）、QQ（16.38%）、AA（16.64%）、KK（16.65%）、AJs（27.11%） |
FAQ
Is J4s a good starting hand?
J4s has 49.07% equity vs a random hand, ranking 95 of 169 starting hands (exact enumeration).
Which hands does J4s fear most?
Toughest opponents for J4s: JJ (J4s equity 12.14%), QQ (J4s equity 16.38%), AA (J4s equity 16.64%), KK (J4s equity 16.65%), AJs (J4s equity 27.11%).
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, “J4s vs random hand equity”, pailiku.com/matchups/j4s-vs-random (2026).