Poker Equity & OddsHeads-up preflop all-in equity chart
Short answer
Heads up, AA has 81.9% equity against KK and 91.8% against AK, with a split pot counted as half for each. Every figure on this page counts all 1,712,304 five-card boards for the matchup, in the Poker Equity & Odds engine, with no sampling.
The eight matchups people look up
| Matchup | First hand | Second hand | Tie |
|---|---|---|---|
| AA vs KK | 81.9% | 18.1% | 0.5% |
| AK vs QQ | 43.9% | 56.1% | 0.4% |
| AK vs 22 | 48.0% | 52.0% | 0.6% |
| KK vs AK | 68.9% | 31.1% | 0.8% |
| AA vs AK | 91.8% | 8.2% | 1.3% |
| AA vs 76s | 77.5% | 22.5% | 0.4% |
| AQ vs KQ | 73.8% | 26.2% | 1.1% |
| AK vs 72o | 68.0% | 32.0% | 0.5% |
The six kinds of matchup
- Pair against a smaller pair. AA vs KK, 81.9%. The small pair needs one of its two outs.
- Pair against two overcards. AK vs QQ, 56.1% for the queens. The coin flip, a little tilted.
- Pair against two undercards. AA vs 76s, 77.5%. Suited connectors are the best of a bad lot.
- Pair against one overcard. KK vs AK, 68.9%. The king in AK is dead.
- Domination. AQ vs KQ, 73.8%. Same second card, the better kicker wins. More in dominated hands.
- Two live cards. AK vs 72o, 68.0%. Nothing shared; high cards win more often than not.
Every pair against every pair
Read across: the row's pair against the column's pair. The bigger pair is always the favourite, by a margin that barely moves down the grid.
| Row vs | AA | KK | JJ | TT | 99 | 88 | 77 | 66 | 55 | 44 | 33 | 22 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AA | · | 81.9 | 81.5 | 81.1 | 80.7 | 80.9 | 80.5 | 80.5 | 80.5 | 80.9 | 81.3 | 81.8 | 82.2 |
| KK | 18.1 | · | 81.9 | 81.5 | 81.1 | 80.8 | 80.9 | 80.5 | 80.5 | 80.5 | 80.9 | 81.4 | 81.8 |
| 18.5 | 18.1 | · | 82.0 | 81.6 | 81.2 | 80.9 | 80.9 | 80.5 | 80.5 | 81.0 | 81.4 | 81.8 | |
| JJ | 18.9 | 18.5 | 18.0 | · | 82.0 | 81.6 | 81.2 | 80.9 | 81.0 | 80.5 | 81.0 | 81.4 | 81.9 |
| TT | 19.3 | 18.9 | 18.4 | 18.0 | · | 82.0 | 81.6 | 81.2 | 80.9 | 81.0 | 81.0 | 81.4 | 81.9 |
| 99 | 19.1 | 19.2 | 18.8 | 18.4 | 18.0 | · | 81.9 | 81.6 | 81.2 | 80.8 | 81.3 | 81.3 | 81.8 |
| 88 | 19.5 | 19.1 | 19.1 | 18.8 | 18.4 | 18.1 | · | 81.8 | 81.4 | 81.0 | 81.1 | 81.6 | 81.6 |
| 77 | 19.5 | 19.5 | 19.1 | 19.1 | 18.8 | 18.4 | 18.2 | · | 81.6 | 81.2 | 81.3 | 81.4 | 81.9 |
| 66 | 19.5 | 19.5 | 19.5 | 19.0 | 19.1 | 18.8 | 18.6 | 18.4 | · | 81.4 | 81.4 | 81.4 | 81.6 |
| 55 | 19.1 | 19.5 | 19.5 | 19.5 | 19.0 | 19.2 | 19.0 | 18.8 | 18.6 | · | 81.5 | 81.5 | 81.6 |
| 44 | 18.7 | 19.1 | 19.0 | 19.0 | 19.0 | 18.7 | 18.9 | 18.7 | 18.6 | 18.5 | · | 81.0 | 81.1 |
| 33 | 18.2 | 18.6 | 18.6 | 18.6 | 18.6 | 18.7 | 18.4 | 18.6 | 18.6 | 18.5 | 19.0 | · | 80.4 |
| 22 | 17.8 | 18.2 | 18.2 | 18.1 | 18.1 | 18.2 | 18.4 | 18.1 | 18.4 | 18.4 | 18.9 | 19.6 | · |
Every pair against AK
| The pair | Pair vs AK offsuit | Pair vs AK suited |
|---|---|---|
| 56.8% | 54.0% | |
| JJ | 56.9% | 54.0% |
| TT | 56.9% | 54.1% |
| 99 | 55.3% | 52.6% |
| 88 | 55.2% | 52.5% |
| 77 | 55.0% | 52.3% |
| 66 | 55.0% | 52.3% |
| 55 | 54.6% | 52.0% |
| 44 | 54.0% | 51.4% |
| 33 | 53.4% | 50.8% |
| 22 | 52.6% | 50.1% |
| KK | 68.9% against AK, suited and offsuit together | |
| AA | 91.8% against AK, suited and offsuit together | |
Any two hands, in two taps
The calculator counts the same boards on your phone. Put in any two hands, or a hand against a range, and it labels the result EXACT when nothing was sampled.
Questions
What are the odds of AA vs KK?
81.9% for the aces, 18.1% for the kings, with 0.5% ties, over every board for every suit combination.
Is a bigger pair always a favourite?
Yes, and by about the same margin: the grid runs from 80.4% for 33 against 22 to 81.9% for AA against KK. The gap is the smaller pair's two outs, plus straights and flushes.
How does AK do against a pair?
Between 43.1% offsuit against tens and 49.9% suited against deuces. The pocket pair vs overcards guide has every pair.
Why 1,712,304 boards?
With four cards out of the deck, 48 remain, and there are 1,712,304 ways to deal five of them. The engine deals every one and counts who wins.
Where the numbers come from. Every figure on this page comes from the app's own engine, the code that runs on your phone. Outs come from the Outs & Odds tool, hit chances are exact counts, and equities count every runout with no sampling. Engine build 18a5e00d. More worked numbers: flush draw odds and the pot odds cheat sheet.