55 vs AK: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| 55 (Pocket Fives) | 53.7% | 0.5% | 54.0% |
| AK (Ace-King) | 45.8% | 0.5% | 46.0% |
Suited vs offsuit: AK
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| AKs | 47.8% | 0.5% | 48.0% |
| AKo | 45.2% | 0.5% | 45.4% |
How 55 vs AK unfolds by street
Pocket Fives (55) is still ahead on 66% of flops against AK, and the lead survives to the turn on 61%. AK takes the lead on the other 34% of flops. These figures come from full board enumeration, not a simulation.
| Street | 55 still ahead | AK flipped the lead |
|---|---|---|
| Flop | 66% | 34% |
| Turn | 61% | 39% |
55 vs AK is the classic preflop race — a pocket pair against two overcards (connected overcards). The pair noses ahead: 55 wins 53.7%, AK wins 45.8%, and 0.5% of boards chop. The unpaired hand has six outs twice over (any Ace or King), and with its straight gappers live too the whole thing sits within a few points of a coin flip.
At a final table the raw 54.0% / 46.0% split is only half the story — ICM bends it. As the 46.0% underdog, AK 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, 55 vs AK rewards aggression from the favorite and caution from the dog: 55 wants to realize its 53.7% edge by getting value and denying free cards, while AK should lean on fold equity and position rather than hoping to win the pot at showdown about 1 time in 2.
55 vs AK FAQ
Who wins 55 vs AK preflop?
55 (Pocket Fives) is the favorite, winning 53.7% of all runouts, while AK (Ace-King) wins 45.8%. The remaining 0.5% are split pots. Counting splits as half, 55's preflop equity is 54.0%.
Does the 55 vs AK 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: 55's equity runs from 51.8% to 55.0% 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 (55 leads on 66% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Is 55 vs AK a good spot to get all-in?
For 55, yes — a 54.0% favorite should happily commit, especially with fold equity. For AK at 46.0%, it depends on the price: enough to continue with initiative, but thin enough that stacking off out of position is usually a leak.
Does 55 hold up against AK after the flop?
55 is still ahead on 66% of flops and stays ahead through the turn on 61% of boards; AK takes the lead on the other 34% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · JJ VS KQ · TT VS AQ · TT VS AJ · TT VS KQ · TT VS KJ · TT VS QJ
See also: hand-vs-range preflop equity — your hand against a real opening, 3-bet, or shove range.