Hand odds / AT vs A9
AT vs A9: odds and equity
In short
ATo wins 66.7% of the time against A9o all in before the flop, A9o wins 22.6%, and they split the pot 10.6% of the time. ATo is a clear favourite, about 3 to 1. With ATo vs A9s the split is 67.9% to 32.1% in equity.
ATo
72.0%
A9o
28.0%
Equity: win% plus half of the 10.6% split pots. ATo is a clear favourite, about 3 to 1.
Every suit combination
| Matchup | Hand 1 wins | Hand 2 wins | Split | Hand 1 equity |
|---|---|---|---|---|
| ATs vs A9s | 64.3% | 26.0% | 9.6% | 69.2% |
| ATs vs A9o | 68.2% | 21.7% | 10.1% | 73.2% |
| ATo vs A9s | 62.8% | 27.1% | 10.1% | 67.9% |
| ATo vs A9o | 66.7% | 22.6% | 10.6% | 72.0% |
What the flop does to it
When no 9 comes on the flop (87.8% of flops), ATo has 78.2% equity going to the turn. When one does, ATo drops to 27.6%.
A9o shares a card with ATo, so pairing that card doesn't help: it needs its other card to come. Domination like this is why calling with weaker hands of the same kind costs so much.
When this all-in happens in push/fold
At 10BB in 6-max, the Button shoves ATo always and the Big Blind calls with A9o always, so this exact all-in comes straight off the charts.
| 6-max spot | Shove ATo | Call with A9o | Shove A9o | Call with ATo |
|---|---|---|---|---|
| Cutoff shoves, Big Blind calls, 10BB | 100% | 100% | 100% | 100% |
| Button shoves, Big Blind calls, 10BB | 100% | 100% | 100% | 100% |
| Small Blind shoves, Big Blind calls, 10BB | 100% | 100% | 100% | 100% |
| Cutoff shoves, Big Blind calls, 15BB | 100% | 100% | 100% | 100% |
| Button shoves, Big Blind calls, 15BB | 100% | 100% | 100% | 100% |
| Small Blind shoves, Big Blind calls, 15BB | 100% | 100% | 100% | 100% |
How often each hand shoves or calls in our solved 6-max chip-EV charts. A row with both columns high is a spot where this exact all-in is correct for both players. See every chart.
Common questions
- Who is the favourite, AT or A9?
- ATo. All in preflop it has 72.0% equity against A9o: 66.7% wins plus half of the 10.6% split pots. That's a clear favourite, about 3 to 1.
- Do suits change the odds?
- A little. ATs vs A9s is 69.2% to 30.8%; ATs vs A9o is 73.2% to 26.8%; ATo vs A9s is 67.9% to 32.1%; ATo vs A9o is 72.0% to 28.0%. Suited hands make more flushes, which is worth a few percent.
- What happens on the flop?
- When no 9 comes on the flop (87.8% of flops), ATo has 78.2% equity going to the turn. When one does, ATo drops to 27.6%.
- When does AT vs A9 happen in push/fold?
- At 10BB in 6-max, the Button shoves ATo always and the Big Blind calls with A9o always, so this exact all-in comes straight off the charts.
- How were these odds worked out?
- By counting every possible five-card board for every combination of suits: 108 card combinations for ATo vs A9o, 1,712,304 boards each. The numbers are exact, not simulated.