AA vs AK: Who Wins? Exact Odds
AA is a monster favorite: about 91.8% against ace-king overall — 93.2% vs AKo and 87.9% vs AKs. AK's usual weapons are gone: pairing the ace or the king still loses to a bigger pair of aces.
Win, tie, loss
Share of all possible runouts across every suit combination (48 combo pairs). Equity adds half the ties to each side: AA 91.8%, AK 8.2%.
Equity by suit configuration
AA vs AKo93.2% / 6.8%
| Suit configuration | Combos | AA equity | AKo equity |
|---|---|---|---|
A♠A♥ vs A♦K♠ K♠ shares the ace's suit | 24 | 93.47% | 6.53% |
A♠A♥ vs A♦K♣ no shared suits — every backdoor flush is live | 12 | 92.57% | 7.43% |
| All AA vs AKo combos | 36 | 93.17% | 6.83% |
AA vs AKs87.9% / 12.1%
| Suit configuration | Combos | AA equity | AKs equity |
|---|---|---|---|
A♠A♥ vs A♦K♦ no AK flush-suit card in the other hand — the flush draw is fully live | 12 | 87.86% | 12.14% |
| All AA vs AKs combos | 12 | 87.86% | 12.14% |
Each row is a suit-isomorphism class: relabeling the four suits doesn't change equity, so every combo in a row has the identical, exactly-enumerated number. “Combos” counts the hand-vs-hand combinations the row represents.
Why AK is nearly drawing dead
Domination doesn't get worse than this. AA holds two of AK's aces, so AK can't pair its way to victory: an ace on the board makes AA a set, and a king makes AK a pair that's still losing. What's left is the long way around — running straight cards (with only one live ace for broadway) or a flush, which is why the suited version nearly doubles AK's chances. If you're ever offered a preflop all-in holding AK and villain turns out to have exactly AA, you're getting the worst common matchup in hold'em.
- AKo wins just 6.8% against aces — less than 72o's 11.8%. The "worst hand in poker" genuinely outperforms ace-king here, because 72o's ragged cards make two live pairs while AK's pairs are all dead.
- AK cannot win by making one pair — every single-pair runout loses to the overpair. Its equity is nearly all straights and flushes, which is why AKs (12.1%) beats AKo (6.8%) by a 78% relative jump, the biggest suited premium on this site.
- The last ace in the deck is a trap card: it gives AK top pair and AA trips at the same time.
How it was calculated
Exact enumeration, not simulation: for every suit configuration above, all 1,712,304 possible five-card boards were dealt and both hands scored with app/lib/poker-eval.js — the same 7-card evaluator behind /tools/odds-calculator. Ties split the pot, so equity is win% plus half the tie%. Computed 2026-07-27.
Don't take our word for it — run AA vs AK yourself in the odds calculator and watch the Monte Carlo estimate converge on these numbers.
Frequently asked questions
Who wins AA vs AK all-in preflop?+
AA, overwhelmingly: 91.8% across all suit combinations. AKo wins just 6.8%; AKs manages 12.1%. Ties (1.3%) are mostly board-plays-both runouts.
Can AK win by hitting a king?+
No — a king gives AK one pair, which still loses to aces. AK needs a straight, a flush, or running kings (trips). That is why its equity is so much lower here than against QQ or JJ.
Is AA vs AK worse for AK than AA vs a random hand?+
Much worse. AKo gets 6.8% against aces while even 72o gets 11.8%. Sharing your best card with the overpair is the most expensive kind of domination.