Hand odds / A5 vs A2
A5 vs A2: odds and equity
In short
A5o wins 34.0% of the time against A2o all in before the flop, A2o wins 21.6%, and they split the pot 44.3% of the time. A5o is a small favourite. With A5o vs A2s the split is 53.1% to 46.9% in equity.
A5o
56.2%
A2o
43.8%
Equity: win% plus half of the 44.3% split pots. A5o is a small favourite.
Every suit combination
| Matchup | Hand 1 wins | Hand 2 wins | Split | Hand 1 equity |
|---|---|---|---|---|
| A5s vs A2s | 36.0% | 25.1% | 38.9% | 55.4% |
| A5s vs A2o | 37.7% | 20.8% | 41.6% | 58.5% |
| A5o vs A2s | 32.4% | 26.1% | 41.5% | 53.1% |
| A5o vs A2o | 34.0% | 21.6% | 44.3% | 56.2% |
What the flop does to it
When no 2 comes on the flop (87.8% of flops), A5o has 59.8% equity going to the turn. When one does, A5o drops to 30.4%.
A2o shares a card with A5o, 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 A5o always and the Big Blind calls with A2o always, so this exact all-in comes straight off the charts.
| 6-max spot | Shove A5o | Call with A2o | Shove A2o | Call with A5o |
|---|---|---|---|---|
| Cutoff shoves, Big Blind calls, 10BB | 100% | 0% | 98% | 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 | 93% | 0% | 1% | 0% |
| Button shoves, Big Blind calls, 15BB | 100% | 0% | 99% | 91% |
| 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, A5 or A2?
- A5o. All in preflop it has 56.2% equity against A2o: 34.0% wins plus half of the 44.3% split pots. That's a small favourite.
- Do suits change the odds?
- A little. A5s vs A2s is 55.4% to 44.6%; A5s vs A2o is 58.5% to 41.5%; A5o vs A2s is 53.1% to 46.9%; A5o vs A2o is 56.2% to 43.8%. Suited hands make more flushes, which is worth a few percent.
- What happens on the flop?
- When no 2 comes on the flop (87.8% of flops), A5o has 59.8% equity going to the turn. When one does, A5o drops to 30.4%.
- When does A5 vs A2 happen in push/fold?
- At 10BB in 6-max, the Button shoves A5o always and the Big Blind calls with A2o 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 A5o vs A2o, 1,712,304 boards each. The numbers are exact, not simulated.