99 vs 66: Preflop Equity & Odds
| Hand | Win | Tie | Equity |
|---|---|---|---|
| 99 (Pocket Nines) | 80.9% | 0.6% | 81.2% |
| 66 (Pocket Sixes) | 18.5% | 0.6% | 18.8% |
How 99 vs 66 unfolds by street
Pocket Nines (99) is still ahead on 89% of flops against 66, and the lead survives to the turn on 85%. 66 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.
| Street | 99 still ahead | 66 flipped the lead |
|---|---|---|
| Flop | 89% | 11% |
| Turn | 85% | 15% |
Set one pocket pair against a bigger one and you get 99 vs 66: 99 wins 80.9%, 66 wins 18.5%, and 0.6% of boards chop. 99 is a 4.4-to-1 favorite. The lower pair, 66, 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 5.
At a final table the raw 81.2% / 18.8% split is only half the story — ICM bends it. As the 18.8% underdog, 66 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.
As the bigger pair, 99, your whole job is to get the money in before a scare card — there's no fold here and slow-playing only lets 66 realize its set equity for free. As the smaller pair, the discipline is recognizing when stacks are deep enough that calling off 18.5% equity is a leak, even though folding pre feels impossible.
99 vs 66 FAQ
Who wins 99 vs 66 preflop?
99 (Pocket Nines) is the favorite, winning 80.9% of all runouts, while 66 (Pocket Sixes) wins 18.5%. The remaining 0.6% are split pots. Counting splits as half, 99's preflop equity is 81.2%.
How often does 66 beat 99?
66 wins 18.5% of the time all-in preflop against 99 — roughly 1 in 5 — so it needs good pot odds or fold equity to get the money in profitably.
Can you fold the smaller pair in 99 vs 66?
Almost never preflop all-in — but the 18.5% the smaller pair wins (about 1 in 5) 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 99 hold up against 66 after the flop?
99 is still ahead on 89% of flops and stays ahead through the turn on 85% of boards; 66 takes the lead on the other 11% of flops. These are exact figures from full board enumeration.
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