AK vs 54s: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| AK (Ace-King) | 59.1% | 0.5% | 59.4% |
| 54s (Five-Four Suited) | 40.3% | 0.5% | 40.6% |
Suited vs offsuit: AK
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| AKs | 61.1% | 0.6% | 61.3% |
| AKo | 58.5% | 0.5% | 58.8% |
How AK vs 54s unfolds by street
Ace-King (AK) is still ahead on 68% of flops against 54s, and the lead survives to the turn on 66%. 54s takes the lead on the other 32% of flops. These figures come from full board enumeration, not a simulation.
| Street | AK still ahead | 54s flipped the lead |
|---|---|---|
| Flop | 68% | 32% |
| Turn | 66% | 34% |
AK vs 54s is a four-live-card fight — no pair, no shared rank, just rank order and geometry. AK wins 59.1%, 54s wins 40.3%, and 0.5% of boards chop. Whoever pairs first usually scoops, so the edge comes from AK making the higher pair plus whatever straight and flush equity runs between the two hands.
Think in variance terms: 59.4% equity means AK loses this all-in nearly 41 times in 100, so even a "dominant" spot is a coin you'll see come up tails plenty. Getting it in as the 59.4% favorite is correct every time; the 40.6% that goes the other way is math, not a misplay.
In practice, AK vs 54s rewards aggression from the favorite and caution from the dog: AK wants to realize its 59.1% edge by getting value and denying free cards, while 54s should lean on fold equity and position rather than hoping to win the pot at showdown about 1 time in 2.
AK vs 54s FAQ
Who wins AK vs 54s preflop?
AK (Ace-King) is the favorite, winning 59.1% of all runouts, while 54s (Five-Four Suited) wins 40.3%. The remaining 0.5% are split pots. Counting splits as half, AK's preflop equity is 59.4%.
Does the AK vs 54s 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: AK's equity runs from 58.1% to 63.5% depending on suitedness and which suits the two hands share, which is why different sites quote slightly different figures. It does change once board cards are dealt (AK leads on 68% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Is AK vs 54s a good spot to get all-in?
For AK, yes — a 59.4% favorite should happily commit, especially with fold equity. For 54s at 40.6%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does AK hold up against 54s after the flop?
AK is still ahead on 68% of flops and stays ahead through the turn on 66% of boards; 54s takes the lead on the other 32% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AK VS QJ · AK VS QT · AQ VS KJ · AQ VS KT · AQ VS JT · AJ VS KQ
AK against a range
All-in against one known hand is the textbook case; at the table AK is usually up against a range. Exact equities, computed over every combo with card removal applied:
- AK vs calling station — 64.5% against 670 combos (50.5% of hands)
- AK vs BTN open — 64.0% against 586 combos (44.2% of hands)
- AK vs SB open — 64.0% against 534 combos (40.3% of hands)
- AK vs CO open — 61.7% against 366 combos (27.6% of hands)