AA vs 44 Odds: Pocket Aces vs Pocket Fours
Last updated: May 27, 2026
Pocket Aces (AA) wins 82.3% of the time against Pocket Fours (44) preflop. 44 wins 15.9% with ties at 1.8%. AA's advantage here is purely structural — no overcard can appear above aces, eliminating the overcard-pair risk that plagues medium-pair domination matchups. 44 is a classic set-mine hand against AA, and crucially, 44 vs AA is more profitable to set-mine than 44 vs KK because AA will stack off on virtually any board where it holds an overpair or top set, making AA's post-flop willingness to commit chips exceptional.
The Exact Number: 82.3% vs 15.9%
AA's 66.4-point advantage over 44 is among the highest of any pair-vs-pair matchup. The 1.8% tie rate reflects both players' limited connectivity to low straights — slightly elevated compared to AA vs KK but structurally stable, as small pairs like 44 have fewer opportunities to participate in high-card straight combinations.
AA Wins
82.3%
44 Wins
15.9%
Tie
1.8%
44's 15.9% equity is almost entirely concentrated in set-out probability (11.8% flop rate × ~88.8% win rate when set lands = ~10.5% equity contribution). The remaining ~5.4% comes from runner-runner scenarios, gutshot draws on A-2-3 boards, and rare board-play ties. Unlike medium pair matchups, 44 gains almost no equity from connected board textures — low boards are 44's best terrain, but 44 still needs to flop a set to win reliably.
Does the Suit Matter?
Suit combinations affect AA vs 44 by approximately 0.4 percentage points. Since 44's primary equity driver (set outs) is entirely suit-independent, the small variation comes only from flush draw possibilities when 44 shares a suit with an ace. The 1.8% tie rate is constant across all suit configurations.
Preflop equity by suit combination
Post-Flop: The A-4-x Cooler and Low Board Dynamics
Post-flop in AA vs 44, board texture is binary: either 44 flopped a set (and is now the huge favourite) or 44 did not (and is drawing to runner-runner scenarios). The A-4-x set-over-set cooler is the definitive hand in this matchup — both players flop the nuts from their perspective, and nearly all chips go in. Low connected boards (2-3-5) give 44 rare secondary equity via gutshot draws.
Equity given specific flops and runouts
Why 44 vs AA Is the Best Set-Mine in Poker
Set-mining profitability depends on implied odds — how much you expect to win when you flop your set. The formula requires winning approximately 7× the preflop call after flopping the set to break even. Against AA, 44's implied odds are at their maximum for a key reason: AA's holder believes they have the best hand on virtually every board.
Consider what happens on different board textures when 44 flops a set of fours:
Why AA stacks off vs 44's set
- On non-ace board (e.g. K-4-7): AA has overpair, will bet/call off entire stack~11.8% of flops
- On ace board (e.g. A-4-K): AA has top set, set-over-set cooler, AA commits~3.5% of flops
- On K-K board: AA still has overpair, 44 has set, AA bets/callsvery rare
- 44 equity when set flops vs AA~88.8%
- Implied odds vs AA (full stack)exceptional
In contrast, 44 vs KK benefits from weaker implied odds: on ace-high boards, KK may slow down (fearing an ace in the opponent's hand), reducing the likelihood of stacking off. AA never has this concern — AA's structural dominance makes it the most reliable stack-off candidate in poker, making 44 vs AA the textbook example of high-implied-odds set-mining.
AA Pair-vs-Pair Reference Table
AA's equity against every pocket pair. Notice how small pairs (44, 33, 22) actually have slightly higher equity than medium pairs — they interact with fewer board textures, reducing secondary equity sources and making the matchup cleaner but slightly more favourable for the small pair in terms of pure set-mining math.
Key pattern: AA's equity dips slightly against medium pairs (AA vs 77: 79.9%, AA vs 66: 79.8%) because those pairs interact more with connected board textures and generate more secondary equity. AA's equity then rises sharply against 55, 44, 33, 22 as small pairs lose board-connectivity equity. AA vs 22 (82.5%) represents AA's absolute maximum equity against any pocket pair.
Definitions
Frequently Asked Questions
What are the exact AA vs 44 preflop odds?
Pocket Aces (AA) win 82.3% of the time against Pocket Fours (44) preflop. 44 wins 15.9% and ties account for 1.8%. This is a domination matchup at its purest — AA holds two cards that rank above every other pair, and 44's path to victory runs almost entirely through flopping a set (which happens 11.8% of the time). When 44 flops a set, it wins approximately 88.8% of the time from that point, making set-mining the defining strategy for 44 in this matchup.
Why is AA's advantage described as 'structural'?
AA's edge over any pocket pair is structural because no overcard pair can appear on the board to threaten it. When TT faces 99, both players must contend with jack-, queen-, king-, and ace-high boards. AA faces none of this: there is no card in the deck that creates an overcard pair above aces. This means AA's 82.3% equity vs 44 is almost entirely driven by raw card superiority, with no overcard-pair risk eroding its edge. AA's post-flop overpair status is completely unassailable — only a flopped set from 44 can realistically challenge it.
Why is 44 vs AA more profitable to set-mine than 44 vs KK?
This is one of the most important implied odds concepts in poker. 44 set-mines by calling preflop and hoping to flop a set of fours (11.8% probability). When the set lands against KK, the king-high board may slow KK down — KK sees a non-king board and wonders whether opponents have hit top pair. But when 44 flops a set against AA, any ace-high board makes AA feel invincible: AA has flopped top set or holds an overpair on a non-ace board with no overcard concern. AA is structurally more likely to stack off post-flop because its hand strength is unambiguous to its own holder. This makes 44's implied odds vs AA significantly higher than vs KK, making the preflop call more profitable.
What is the A-2-3-4 gutshot scenario for 44?
On an A-2-3 flop, 44 picks up a gutshot straight draw: any five completes A-2-3-4-5, the wheel (the best possible low straight). However, this scenario is complex: the ace on the board also means AA has top pair with its pair (or a set if there's another ace). The A-2-3 flop with a 44 in hand gives 44 approximately 22.6% equity — 44 has four outs to the wheel straight plus runner-runner set potential. However, if the wheel completes on A-2-3-4-5, AA also holds the ace in the straight — meaning both players share the wheel and the pot may chop. 44's gutshot equity is partially illusory because AA participates in the same straight.
What is the set-over-set scenario for AA vs 44?
On A-4-x flops, both AA and 44 have flopped three-of-a-kind simultaneously. AA has top set (three aces) and 44 has middle set (three fours). AA wins approximately 85.3% from this point — 44 must make four fours (quads) or the board must run out a specific full house combination. This is one of poker's most devastating cooler scenarios: both players will correctly put all chips in on the A-4-x flop, and 44 is an 85.3% underdog despite holding a flopped set. The frequency of this specific cooler is very low (approximately 0.08% of hands between AA and 44), but when it occurs, the damage is maximised.
How do implied odds work for 44 set-mining against AA?
44's primary winning path requires flopping a set (11.8% probability). Standard set-mining math requires approximately 7:1 implied odds to be profitable — meaning 44 must win roughly 7× the preflop call on set-hitting streets to compensate for the 88.2% miss rate. Against AA specifically, 44's implied odds are among the best of any set-mining scenario: AA has no overcard concerns post-flop, making it very likely to continue betting and calling. If 44 flops a set of fours on a non-ace board, AA's overpair will aggressively call or raise; on an ace-high board, AA flopped a set itself and the cooler is live. This strong post-flop action from AA makes 44's implied odds vs AA exceptionally high.
How does AA vs 44 fit into the full AA pair-vs-pair equity spectrum?
AA vs 44 (82.3%) sits near the top of the AA equity spectrum. AA vs KK (82.4%) is the highest because both aces block KK's pair and the broadway-card structure creates very few tie opportunities. AA vs 44 (82.3%) is the second-highest because small pairs like 44 connect with fewer board textures, generating fewer secondary equity sources for the underdog. AA vs 99 (80.1%) and AA vs 88 (80.2%) are lower because medium pairs have more board connectivity. The full reference table below shows AA's equity vs every pocket pair.
Related Guides
Run AA vs 44 on any flop — see live equity
RiverOdds shows exactly how the A-4-x cooler and set-mining scenarios shift equity in real time.
Open RiverOdds Calculator →