JJ vs A2s: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| JJ (Pocket Jacks) | 67.6% | 0.4% | 67.8% |
| A2s (Ace-Deuce Suited) | 32.0% | 0.4% | 32.2% |
How JJ vs A2s unfolds by street
Pocket Jacks (JJ) is still ahead on 81% of flops against A2s, and the lead survives to the turn on 75%. A2s takes the lead on the other 19% of flops. These figures come from full board enumeration, not a simulation.
| Street | JJ still ahead | A2s flipped the lead |
|---|---|---|
| Flop | 81% | 19% |
| Turn | 75% | 25% |
JJ vs A2s is a lopsided race — only one of A2s's cards is an overcard to the pair. JJ wins 67.6%, A2s wins 32.0%, and 0.4% of boards chop. With roughly half the outs of a true two-overcard flip, A2s is a clear 2.1-to-1 dog that usually needs to pair its live card (or find a sneaky straight/two-pair runout) to win.
At a final table the raw 67.8% / 32.2% split is only half the story — ICM bends it. As the 32.2% underdog, A2s pays an extra survival premium, so the chip-EV "close enough" call can be a clear ICM fold. The pure equity sets the floor; the payout ladder sets the real price.
In practice, JJ vs A2s rewards aggression from the favorite and caution from the dog: JJ wants to realize its 67.6% edge by getting value and denying free cards, while A2s should lean on fold equity and position rather than hoping to win the pot at showdown about 1 time in 3.
Where to take JJ vs A2s next
Getting it in near the money bubble or at a final table? Chip equity isn't prize equity — check the spot in the ICM calculator before you call off your stack.
Played a hand like this yourself? Import it into the poker hand analyzer for a street-by-street review of every decision, not just the all-in.
For the bigger picture, the poker tournament strategy guide covers when to shove and when to fold as stacks shrink, and what GTO poker is explains why strong players think in ranges rather than single hands.
New to the game? The poker hand rankings chart shows which hand wins at showdown, how to play poker: a beginner's guide walks through the rules and betting rounds, and the poker strategy guide shows where preflop equity fits into a winning game plan.
JJ vs A2s FAQ
Who wins JJ vs A2s preflop?
JJ (Pocket Jacks) is the favorite, winning 67.6% of all runouts, while A2s (Ace-Deuce Suited) wins 32.0%. The remaining 0.4% are split pots. Counting splits as half, JJ's preflop equity is 67.8%.
Does the JJ vs A2s probability change all-in preflop?
No. Once both hands are all-in preflop the odds are set by the cards alone — position, stack size and who bet first change nothing. The only thing that moves the number is suits: JJ's equity runs from 67.5% to 68.1% depending on how many suits the two hands share, which is why different sites quote slightly different figures. It does change once board cards are dealt (JJ leads on 81% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Is JJ vs A2s a good spot to get all-in?
For JJ, yes — a 67.8% favorite should happily commit, especially with fold equity. For A2s at 32.2%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does JJ hold up against A2s after the flop?
JJ is still ahead on 81% of flops and stays ahead through the turn on 75% of boards; A2s takes the lead on the other 19% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · KK VS AQ · KK VS AJ · QQ VS AJ · QQ VS KJ · KK VS AT · QQ VS AT
JJ against a range
All-in against one known hand is the textbook case; at the table JJ is usually up against a range. Exact equities, computed over every combo with card removal applied:
- JJ vs calling station — 71.9% against 670 combos (50.5% of hands)
- JJ vs BTN open — 70.9% against 586 combos (44.2% of hands)
- JJ vs SB open — 70.0% against 534 combos (40.3% of hands)
- JJ vs CO open — 68.5% against 366 combos (27.6% of hands)