JJ vs AK: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| JJ (Pocket Jacks) | 56.0% | 0.4% | 56.2% |
| AK (Ace-King) | 43.6% | 0.4% | 43.8% |
Suited vs offsuit: AK
| Matchup | Win | Tie | Equity |
|---|---|---|---|
| AKs | 45.8% | 0.4% | 46.0% |
| AKo | 42.9% | 0.4% | 43.1% |
JJ versus AK is the classic preflop "race": a pocket pair against two overcards. The pair is a small favorite — JJ wins 56.0% to AK's 43.6%, with 0.4% ties. The unpaired hand has six outs twice (any Ace or King on any street usually takes the lead), which is why this matchup plays so close to a coin flip and why tournament players talk about "winning the flip."
In equity terms — your long-run share of the pot counting split pots as half — JJ holds 56.2% and AK holds 43.8%. To make these numbers practical: facing a pot-sized all-in you need about 33% equity to call profitably, and a half-pot bet needs about 25%. Numbers on this page are exact, computed by full board enumeration (not simulation). Try any other hand or full ranges in the free equity calculator.
JJ vs AK FAQ
Who wins JJ vs AK preflop?
JJ (Pocket Jacks) is the favorite: it wins 56.0% of all runouts, while AK (Ace-King) wins 43.6%. The remaining 0.4% are split pots. Counting splits as half, JJ's preflop equity is 56.2%.
How often does AK beat JJ?
AK wins 43.6% of the time all-in preflop against JJ — a genuine underdog, but with enough live outs that the matchup is closer than the favorite would like.
Are these JJ vs AK numbers exact?
Yes. They are computed by exhaustively enumerating every possible five-card board (1,712,304 boards per card combination) and averaging across all suit combinations of both hands — not by Monte Carlo simulation. Display values are rounded to one decimal place.
Run any matchup in the free equity calculator · QQ VS AK · TT VS AK · 99 VS AK