KK vs 54s: Odds & Interactive Calculator
| Hand | Win | Tie | Equity |
|---|---|---|---|
| KK (Pocket Kings) | 77.3% | 0.5% | 77.5% |
| 54s (Five-Four Suited) | 22.3% | 0.5% | 22.5% |
How KK vs 54s unfolds by street
Pocket Kings (KK) is still ahead on 93% of flops against 54s, and the lead survives to the turn on 87%. 54s takes the lead on the other 7% of flops. These figures come from full board enumeration, not a simulation.
| Street | KK still ahead | 54s flipped the lead |
|---|---|---|
| Flop | 93% | 7% |
| Turn | 87% | 13% |
KK vs 54s is the "big pair against live cards" spot: KK wins 77.3%, 54s wins 22.3%, and 0.5% of boards chop. Even at a 3.5-to-1 deficit, 54s keeps about 22.3% because suited connectors attack three ways at once — pairing either card, completing a straight, or filling the flush.
At a final table the raw 77.5% / 22.5% split is only half the story — ICM bends it. As the 22.5% underdog, 54s 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.
With the overpair, bet big and bet now — 54s has the draws to make your life miserable on later streets, so charging it the maximum before the flush and straight cards arrive is the entire plan. From the connectors' side, the 22.3% equity is real but realized best in position with the chance to fold out the pair, not by stacking off blind.
KK vs 54s FAQ
Who wins KK vs 54s preflop?
KK (Pocket Kings) is the favorite, winning 77.3% of all runouts, while 54s (Five-Four Suited) wins 22.3%. The remaining 0.5% are split pots. Counting splits as half, KK's preflop equity is 77.5%.
Does the KK vs 54s 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: KK's equity runs from 76.9% to 78.0% 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 (KK leads on 93% of flops) and in multiway pots, where every extra caller takes equity from both hands.
Are suited connectors good against KK?
Better than almost any other underdog: 54s holds 22.5% equity against KK thanks to its straight and flush potential — roughly 1 win in 4. That equity is realized best with position and fold equity postflop, not by jamming all-in preflop where the overpair is a 3.5-to-1 favorite.
Does KK hold up against 54s after the flop?
KK is still ahead on 93% of flops and stays ahead through the turn on 87% of boards; 54s takes the lead on the other 7% of flops. These are exact figures from full board enumeration.
Run any matchup in the free equity calculator · AA VS 54S · AA VS 87S · AA VS 98S · AA VS T9S · AA VS JTS · AA VS 75S
KK against a range
All-in against one known hand is the textbook case; at the table KK is usually up against a range. Exact equities, computed over every combo with card removal applied:
- KK vs calling station — 78.7% against 670 combos (50.5% of hands)
- KK vs BTN open — 77.7% against 586 combos (44.2% of hands)
- KK vs SB open — 77.2% against 534 combos (40.3% of hands)
- KK vs CO open — 76.7% against 366 combos (27.6% of hands)