KQs vs a button opening range: Equity & Strategy
King-Queen Suited (KQs) has 55.7% equity all-in preflop against a button opening range — 586 combos, 44.2% of all starting hands. It wins 54.2% of runouts outright, loses 42.9% and chops 2.8%. These are exact figures from full board enumeration against every unblocked combo in the range, not a simulation.
| Side | Win | Chop | Equity |
|---|---|---|---|
| KQs | 54.2% | 2.8% | 55.7% |
| a button opening range | 42.9% | 2.8% | 44.3% |
The range this is computed against
The button is the widest legitimate opening range in poker — guaranteed position for the rest of the hand and only two blinds left to act, so close to 45% of all hands open profitably: every pair, every suited ace and king, most suited queens and jacks, all the suited connectors and gappers, and offsuit aces all the way down to A2o.
BTN open — 586 combos, 44.2% of all starting hands: AA, KK, QQ, JJ, TT, 99, 88, 77, 66, 55, 44, 33, 22, AKs, AQs, AJs, ATs, A9s, A8s, A7s, A6s, A5s, A4s, A3s, A2s, KQs, KJs, KTs, K9s, K8s, K7s, K6s, K5s, K4s, K3s, K2s, QJs, QTs, Q9s, Q8s, Q7s, Q6s, Q5s, Q4s, Q3s, Q2s, JTs, J9s, J8s, J7s, T9s, T8s, T7s, T6s, 98s, 97s, 96s, 95s, 87s, 86s, 85s, 76s, 75s, 74s, 65s, 64s, 63s, 54s, 53s, 52s, 43s, AKo, AQo, AJo, ATo, A9o, A8o, A7o, A6o, A5o, A4o, A3o, A2o, KQo, KJo, KTo, K9o, QJo, QTo, Q9o, JTo, J9o, T9o, 98o
After card removal, 527 of those 586 combos are still available (59 are blocked by the cards KQs holds). KQs is ahead of 280 and behind 247.
Hardest parts of the range for KQs
| Hand | Combos | KQs equity |
|---|---|---|
| KK | 3 | 13.9% |
| AA | 6 | 17.1% |
| AKs | 3 | 28.6% |
| AQs | 3 | 28.6% |
| AKo | 9 | 29.6% |
Easiest parts of the range for KQs
| Hand | Combos | KQs equity |
|---|---|---|
| Q9o | 9 | 75.1% |
| KJo | 9 | 75.0% |
| QJo | 9 | 74.9% |
| K9o | 9 | 74.8% |
| KTo | 9 | 74.7% |
Against a button opening range (586 combos, 44.2% of all hands), KQs runs at 55.7%. It wins 54.2% of runouts outright, loses 42.9% and splits the remaining 2.8%. Your own two cards remove 59 of those combos before the flop is even dealt — a blocker effect this number already accounts for, because every combo containing one of your exact cards is stripped out of the range first. You are ahead of 280 of the 527 combos you can still be facing (53%), which is what a 55.7% number actually looks like hand by hand.
Where does the range come from? The button is the widest legitimate opening range in poker — guaranteed position for the rest of the hand and only two blinds left to act, so close to 45% of all hands open profitably: every pair, every suited ace and king, most suited queens and jacks, all the suited connectors and gappers, and offsuit aces all the way down to A2o. Broken down hand by hand, KQs does worst against KK (13.9%), AA (17.1%) and AKs (28.6%) and best against Q9o (75.1%), KJo (75.0%) and QJo (74.9%). Across the whole range KQs's equity swings from 13.9% at the bottom to 75.1% at the top — the single 55.7% headline is the combo-weighted average of all of it.
The practical read on 55.7% against a button opening range: you can 3-bet for value or flat in position, but this is not a stack-off-preflop holding against a 44.2% opener.
KQs vs BTN open FAQ
What is KQs's equity against a button opening range?
KQs has 55.7% equity all-in preflop against a button opening range — it wins 54.2% of runouts outright, loses 42.9% and chops 2.8%. The range holds 586 combos (44.2% of all hands); KQs blocks 59 of them, leaving 527 live. This is exact full board enumeration, not a simulation.
Which hands in a button opening range beat KQs?
KQs is behind 247 of the 527 live combos and ahead of the other 280. The worst matchups are KK (13.9%), AA (17.1%) and AKs (28.6%); its best are Q9o (75.1%), KJo (75.0%) and QJo (74.9%). Every figure is exact, computed against that hand's unblocked combos only.
What hands are in a button opening range?
94 hand classes and 586 combos — 44.2% of the 1,326 possible starting hands. By combo count it is 13% pocket pairs (13 pairs, 78 combos), 40% suited hands (58 classes, 232 combos) and 47% offsuit hands (23 classes, 276 combos). That shape is why KQs runs at 55.7% against it rather than against a random hand.
Does KQs do better against a wider or a tighter range?
Wider, almost always. KQs has 57.5% equity against a loose-passive calling range (50.5% of hands) but 29.5% against a 4-betting range (3.2%). Equity against a range is mostly a question of how many weak hands the range still contains — which is why the same holding can be a monster against a button open and a fold against a 4-bet.
Run any hand vs range in the free equity calculator · All hand-vs-range matchups · kqs vs 3bet-value · kqs vs 4bet-range · kqs vs calling-station · aa vs utg-open · aa vs mp-open · aa vs co-open