66 vs 44: Odds & Interactive Calculator

How 66 vs 44 unfolds by street

Pocket Sixes (66) is still ahead on 89% of flops against 44, and the lead survives to the turn on 86%. 44 takes the lead on the other 11% of flops, almost always by flopping a set. These figures come from full board enumeration, not a simulation.

Set one pocket pair against a bigger one and you get 66 vs 44: 66 wins 80.4%, 44 wins 17.6%, and 2.0% of boards chop. 66 is a 4.6-to-1 favorite. The lower pair, 44, is drawing to the two cards left in the deck that make it a set; miss those and only a runner-runner straight or flush saves it, which is why it gets there just 1 time in 6.

Think in variance terms: 81.4% equity means 66 loses this all-in nearly 19 times in 100, so even a "dominant" spot is a coin you'll see come up tails plenty. Getting it in as the 81.4% favorite is correct every time; the 18.6% that goes the other way is math, not a misplay.

As the bigger pair, 66, your whole job is to get the money in before a scare card — there's no fold here and slow-playing only lets 44 realize its set equity for free. As the smaller pair, the discipline is recognizing when stacks are deep enough that calling off 17.6% equity is a leak, even though folding pre feels impossible.

66 vs 44 FAQ

Who wins 66 vs 44 preflop?

66 (Pocket Sixes) is the favorite, winning 80.4% of all runouts, while 44 (Pocket Fours) wins 17.6%. The remaining 2.0% are split pots. Counting splits as half, 66's preflop equity is 81.4%.

Does the 66 vs 44 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: 66's equity runs from 80.7% to 82.1% depending on how many suits the two hands share, which is why different sites quote slightly different figures. It does change once board cards are dealt (66 leads on 89% of flops) and in multiway pots, where every extra caller takes equity from both hands.

Can you fold the smaller pair in 66 vs 44?

Almost never preflop all-in — but the 17.6% the smaller pair wins (about 1 in 6) means that when stacks are very deep and the action screams a bigger pair, laying it down is a real, if rare, fold. Set-mining the lower pair works only with the implied odds to win a full stack when you spike.

Does 66 hold up against 44 after the flop?

66 is still ahead on 89% of flops and stays ahead through the turn on 86% of boards; 44 takes the lead on the other 11% of flops. These are exact figures from full board enumeration.

Run any matchup in the free equity calculator · AA VS TT · AA VS 99 · AA VS 88 · AA VS 77 · AA VS 66 · AA VS 55

See also: hand-vs-range preflop equity — your hand against a real opening, 3-bet, or shove range.