AA vs 87s
Overpair against two undercards — about 80/20 for the pair.
- AA Win
- 77.4%
- Tie
- 0.3%
- AA Lose
- 22.2%
- Card combinations
- 24
- AA vs random
- 85.2% · #1
- 87s vs random
- 47.9% · #101
Win, tie and loss for AA
When AA and 87s get all in before the flop, AA wins 77.6% of the time and 87s takes 22.4%. Broken down, AA wins outright 77.4%, chops 0.3% and loses 22.2% — a margin of 55.2 points. Overpair against two undercards — about 80/20 for the pair.
The same matchup shifts depending on how the suits overlap. With no shared suit the number is 77.1% (for example As Ah against 8d 7d); with one shared suit it is 78.1% (As Ah against 8s 7s). That is a spread of 1.06 points across the 24 distinct card combinations, and it comes almost entirely from whether the two hands are fighting over the same flush.
Add a third player holding a random hand and the split becomes AA 68.0%, 87s 20.1%, random 11.9%. AA gives up 9.6 points and 87s gives up 2.3, so the favourite loses more than the underdog does. Extra players always eat into the leader's share faster than into anyone else's.
Taken on their own, AA is worth 85.2% against a random hand (rank 1 of 169) and 87s is worth 47.9% (rank 101). The gap between them in the ranking is only 37.3 points, yet head to head the gap is 55.2 points — a reminder that a ranking table and a direct matchup are two different questions.
Framed as a run of one hundred identical all-ins, AA scoops roughly 77 pots, splits about one, and loses the remaining 22. Against eight random opponents rather than this one specific hand, AA would be down to 34.5% and 87s to 14.0%, so the shape of this particular confrontation matters far more than either hand's standing in the overall ranking.
From 87s's side, 22.4% is the break-even point for calling an all-in at 3.46:1 pot odds. Put another way, the call is profitable as long as the amount you have to put in is less than 22.4% of the pot you are playing for. AA holds the other 77.6% of that same pot.
Two caveats keep this figure honest. First, it is showdown equity across all 24 card combinations with five board cards still to come — there is no fold equity in it, so the value of shoving in practice is usually higher than the raw percentage suggests. Second, it assumes 87s really does hold exactly 87s; against the wider range a player would actually get all in with, AA's 77.6% moves. Use the individual pages for AA and 87s to see how each of them fares against all 168 other holdings before treating this single pairing as the whole picture.
Overlapping suits move the number
200,000 simulated showdowns per condition. The example column shows one concrete four-card layout.
| Condition | Example | Combos | AA Equity | Win | Tie | Lose |
|---|---|---|---|---|---|---|
| No shared suit | As Ah vs 8d 7d | 12 | 77.1% | 76.9% | 0.3% | 22.8% |
| One shared suit | As Ah vs 8s 7s | 12 | 78.1% | 78.0% | 0.4% | 21.7% |
Adding a random third hand
200,000 simulated showdowns, with the third hand dealt at random each time.
At a bigger table
| Random opponents | AA | 87s |
|---|---|---|
| 1 | 85.2% | 47.9% |
| 2 | 73.5% | 33.7% |
| 4 | 55.9% | 22.4% |
| 8 | 34.5% | 14.0% |
Related
FAQ
AA or 87s — which is ahead preflop?
AA is the favourite. AA takes 77.6% and 87s 22.4%, a margin of 55.2 points, with 0.3% of hands ending in a chop.
Do the suits change AA vs 87s?
Yes. With no shared suit it is 77.1%, and with one shared suit it is 78.1% — a swing of up to 1.06 points.
What happens three-way?
With one extra random hand in the pot the split is AA 68.0%, 87s 20.1%, random 11.9%. AA drops 9.6 points compared with heads-up.
427 words / 32 distinct figures — Method