AA vs 64s: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| AA (Pocket Aces) | 78.9% | 0.4% | 79.1% |
| 64s (Six-Four Suited) | 20.6% | 0.4% | 20.9% |
How AA vs 64s unfolds by street
Pocket Aces (AA) is still ahead on 94% of flops against 64s, and the lead survives to the turn on 88%. 64s takes the lead on the other 6% of flops. These figures come from full board enumeration, not a simulation.
| Street | AA still ahead | 64s flipped the lead |
|---|---|---|
| Flop | 94% | 6% |
| Turn | 88% | 12% |
Put an overpair in against suited connectors and AA vs 64s is the result: AA wins 78.9%, 64s wins 20.6%, and 0.4% of boards chop, a 3.8-to-1 edge. Suited connectors are the single best class for cracking an overpair — two live ranks, straight potential off the Six-Four gap, and a flush draw stack up to about 1 win in 5, well above what an offsuit holding manages here.
Translate that into a decision and it's simple pot-odds math: counting split pots as half, AA carries 79.1% equity and 64s 20.9%. Against a pot-sized shove you need about 33% to call and about 25% versus a half-pot bet — so 64s needs real fold equity, not just its raw share, to justify stacking off.
AA should play this fast and deny equity: every free card helps 64s more than it helps you. If you're the one with the suited connectors, lean on implied odds and fold equity rather than the raw 20.6% — the hand's value is in the pots you take away postflop, not in flipping all-in preflop.
AA vs 64s FAQ
Who wins AA vs 64s preflop?
AA (Pocket Aces) is the favorite, winning 78.9% of all runouts, while 64s (Six-Four Suited) wins 20.6%. The remaining 0.4% are split pots. Counting splits as half, AA's preflop equity is 79.1%.
Does the AA vs 64s 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: AA's equity runs from 78.6% to 79.7% 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 (AA leads on 94% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Are suited connectors good against AA?
Better than almost any other underdog: 64s holds 20.9% equity against AA thanks to its straight and flush potential — roughly 1 win in 5. That equity is realized best with position and fold equity postflop, not by jamming all-in preflop where the overpair is a 3.8-to-1 favorite.
Does AA hold up against 64s after the flop?
AA is still ahead on 94% of flops and stays ahead through the turn on 88% of boards; 64s takes the lead on the other 6% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AA VS 54S · AA VS 87S · AA VS 98S · AA VS T9S · AA VS JTS · AA VS 75S
AA against a range
All-in against one known hand is the textbook case; at the table AA is usually up against a range. Exact equities, computed over every combo with card removal applied:
- AA vs calling station — 84.3% against 670 combos (50.5% of hands)
- AA vs BTN open — 84.1% against 586 combos (44.2% of hands)
- AA vs SB open — 84.4% against 534 combos (40.3% of hands)
- AA vs CO open — 83.6% against 366 combos (27.6% of hands)