---
title: "A9o vs 65s: preflop equity"
url: "https://georgelipoker.com/equity/a9o-vs-65s.md"
canonical_url: "https://georgelipoker.com/equity/a9o-vs-65s"
last_updated: "2026-10-23"
type: "reference"
summary: "Who is ahead, A9o or 65s? A9o leads 58.61% to 41.39% before the flop, counted exactly over every board, with the split by flop type and suit."
related: ["https://georgelipoker.com/equity/a9o-vs-54s.md", "https://georgelipoker.com/equity/a9o-vs-64s.md", "https://georgelipoker.com/equity/kjo-vs-65s.md"]
---

# A9o vs 65s: preflop equity

Who is ahead, A9o or 65s? A9o leads 58.61% to 41.39% before the flop, counted exactly over every board, with the split by flop type and suit.

Averaged over every possible board, A9o is ahead of 65s by 17.22 points of equity, 58.61% to 41.39%.

## A9o against 65s: the numbers

**Exact preflop results for A9o against 65s, in percent**

| Hand | Wins | Ties | Loses | Equity |
| --- | --- | --- | --- | --- |
| A9o | 58.373 | 0.465 | 41.162 | 58.606 |
| 65s | 41.162 | 0.465 | 58.373 | 41.394 |

One side is an offsuit hand, the other is a suited hand. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.

A9o is ahead, but 65s is far from dead: it takes 411 of every 1,000 deals outright. The tie share is 0.47%: on those boards the pot is chopped and neither hand wins outright.

A9o ranks number 25 of 169 starting hands, and 65s ranks number 128, by equity against a random hand.

**Boards behind the percentages: 82,190,592 counted in all**

| Hand | Boards won, about | Boards tied, about | Boards lost, about |
| --- | --- | --- | --- |
| A9o | 47,977,000 | 382,000 | 33,831,000 |
| 65s | 33,831,000 | 382,000 | 47,977,000 |

The total is exact: 48 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand.

**A9o against 65s read as odds**

| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
| --- | --- | --- | --- | --- |
| A9o | 1.416 | 1.713 | 2.429 | 0.706 |
| 65s | 0.706 | 2.429 | 1.713 | 1.416 |

The last column is the break-even price: the pot odds a call needs to offer, as a ratio of pot to call.

## Who is ahead on which flops

The flop changes the picture. A9o does best on rainbow flops topped by a ten or better, at 63.95%, and worst on low rainbow flops (nine high or lower), at 39.64%. Low rainbow flops (nine high or lower) favor 65s, the hand that is behind overall.

**A9o against 65s by flop texture, in percent**

| Flop | Share of flops | A9o wins | Ties | 65s wins | A9o equity |
| --- | --- | --- | --- | --- | --- |
| Rainbow, ten or higher | 25.341 | 63.843 | 0.213 | 35.944 | 63.950 |
| Rainbow, nine or lower | 5.689 | 39.287 | 0.698 | 60.015 | 39.636 |
| Two-tone | 46.667 | 56.693 | 0.283 | 43.024 | 56.835 |
| Monotone | 5.212 | 55.936 | 2.412 | 41.652 | 57.142 |
| Paired | 17.091 | 61.946 | 0.665 | 37.389 | 62.279 |

Rainbow flops have three suits, two-tone flops repeat one suit, monotone flops are all one suit, and paired flops repeat a rank.

## Compared with a random hand

The table below sets each hand against its own random-hand baseline: a change of -2.16 points for A9o, from 60.77%, and -1.74 for 65s, from 43.13%.

**A9o and 65s here compared with each against a random hand, in percent**

| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
| --- | --- | --- | --- | --- |
| A9o, all flops | 58.606 | 60.773 | -2.167 | 0.96434 |
| A9o, rainbow, ten or higher | 63.950 | 60.773 | +3.177 | 1.05228 |
| A9o, rainbow, nine or lower | 39.636 | 60.773 | -21.137 | 0.65220 |
| A9o, two-tone | 56.835 | 60.773 | -3.938 | 0.93520 |
| A9o, monotone | 57.142 | 60.773 | -3.631 | 0.94025 |
| A9o, paired | 62.279 | 60.773 | +1.506 | 1.02478 |
| 65s, all flops | 41.394 | 43.133 | -1.739 | 0.95968 |
| 65s, rainbow, ten or higher | 36.050 | 43.133 | -7.083 | 0.83579 |
| 65s, rainbow, nine or lower | 60.364 | 43.133 | +17.231 | 1.39949 |
| 65s, two-tone | 43.165 | 43.133 | +0.032 | 1.00074 |
| 65s, monotone | 42.858 | 43.133 | -0.275 | 0.99362 |
| 65s, paired | 37.721 | 43.133 | -5.412 | 0.87453 |

## Does a shared suit matter?

Two kinds of deal exist here. In 24 of them the hands share a suit and A9o holds 59.28%. In 24 they do not, and it holds 57.94%. A9o does better with a shared suit, by 1.34 points.

**A9o against 65s by suit overlap, in percent**

| Deals | Specific deals | Share of deals | A9o wins | Ties | 65s wins | A9o equity |
| --- | --- | --- | --- | --- | --- | --- |
| Share a suit | 24 | 50.00 | 59.022 | 0.506 | 40.472 | 59.275 |
| No shared suit | 24 | 50.00 | 57.724 | 0.424 | 41.852 | 57.936 |

## How often this matchup comes up

Out of 1,624,350 ways to deal two seats two cards each, 48 are A9o in one seat and 65s in the other (0.0030%); with the seats swapped too, 96 (0.0059%).

## A worked example

Worked example: both players commit $100, so $200 sits in the middle. Over every board, A9o's average share is $117.22 (a gain of $17.22) and 65s' is $82.78 (a loss of $17.22).

Run 1,000 deals and the tally comes out near 584 for A9o, 411 for 65s and 5 ties.

## The same matchup from the other side

65s against A9o adds nothing new: it is 41.39% for 65s and 58.61% for A9o, the same figures reversed.

## Keep exploring

The calculator link fills in As9h against 6d5d, a deal where the two hands share no suit. Change any card to test your own hand. The neighboring matchups below swap one of the two hands for one of similar strength.

- [Open As9h against 6d5d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As9h&p2=6d5d)
- [A9o combos](https://georgelipoker.com/combos/a9o.md)
- [65s combos](https://georgelipoker.com/combos/65s.md)
- [A9o vs 54s](https://georgelipoker.com/equity/a9o-vs-54s.md)
- [A9o vs 64s](https://georgelipoker.com/equity/a9o-vs-64s.md)
- [KJo vs 65s](https://georgelipoker.com/equity/kjo-vs-65s.md)
- [All hand matchups](https://georgelipoker.com/equity.md)

## How this was computed

Method: exact enumeration. The 48 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board.

Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.

## Related

- [A9o vs 54s: preflop equity](https://georgelipoker.com/equity/a9o-vs-54s.md)
- [A9o vs 64s: preflop equity](https://georgelipoker.com/equity/a9o-vs-64s.md)
- [KJo vs 65s: preflop equity](https://georgelipoker.com/equity/kjo-vs-65s.md)