55 vs AJ: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| 55 (Pocket Fives) | 53.0% | 0.4% | 53.3% |
| AJ (Ace-Jack) | 46.5% | 0.4% | 46.7% |
Suited vs offsuit: AJ
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| AJs | 48.4% | 0.5% | 48.7% |
| AJo | 45.9% | 0.4% | 46.1% |
How 55 vs AJ unfolds by street
Pocket Fives (55) is still ahead on 65% of flops against AJ, and the lead survives to the turn on 60%. AJ takes the lead on the other 35% of flops. These figures come from full board enumeration, not a simulation.
| Street | 55 still ahead | AJ flipped the lead |
|---|---|---|
| Flop | 65% | 35% |
| Turn | 60% | 40% |
55 vs AJ is a race in the truest sense: made hand now (55) versus the bigger drawing hand (AJ). 55 wins 53.0%, AJ wins 46.5%, and 0.4% of boards chop. The pair is ahead on a blank board but every Ace or Jack flips it, and the occasional straight adds a sliver more — which is why it plays out a hair off 50/50.
Here's the intuition behind 53.3% to 46.7%: 55 wins roughly 1 of every 2 times the chips go in, but the underdog cashing 46.7% of the time is exactly why you can't slow-play and let it draw for free.
How you play 55 vs AJ depends on which side you hold. With 55 you're not crushing, so keep the pot controllable and take the 53.0% edge to showdown when you can; with AJ, your equity is enough to continue with initiative but thin enough that bloating the pot out of position is a trap.
55 vs AJ FAQ
Who wins 55 vs AJ preflop?
55 (Pocket Fives) is the favorite, winning 53.0% of all runouts, while AJ (Ace-Jack) wins 46.5%. The remaining 0.4% are split pots. Counting splits as half, 55's preflop equity is 53.3%.
How often does AJ beat 55?
AJ wins 46.5% of the time all-in preflop against 55 — essentially a coin flip, so it is close to even money.
Is 55 vs AJ a good spot to get all-in?
For 55, yes — a 53.3% favorite should happily commit, especially with fold equity. For AJ at 46.7%, 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 AJ after the flop?
55 is still ahead on 65% of flops and stays ahead through the turn on 60% of boards; AJ takes the lead on the other 35% of flops. These are exact figures from full board enumeration.
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