A7s
56.40%
Wins 56.16%, ties 0.47%
J9s
43.60%
Wins 43.37%, ties 0.47%
A7s against J9s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| A7s | 56.161 | 0.468 | 43.371 | 56.395 |
| J9s | 43.371 | 0.468 | 56.161 | 43.605 |
A7s meets J9s, and both are suited hands. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.
A7s is ahead, but J9s is far from dead: it takes 434 of every 1,000 deals outright. Ties are 0.47% of the outcomes here; each tied board gives both hands half the pot.
Among the 169 starting hands, A7s is number 24 and J9s is number 55 by strength against a random hand.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| A7s | 15,386,000 | 128,000 | 11,882,000 |
| J9s | 11,882,000 | 128,000 | 15,386,000 |
Exact total: 16 deals times 1,712,304 boards. The other three counts come from the five-decimal percentages and are rounded to the nearest thousand, so read them as approximate.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| A7s | 1.293 | 1.781 | 2.306 | 0.773 |
| J9s | 0.773 | 2.306 | 1.781 | 1.293 |
The final column gives the least the pot must offer for each unit called for a call to break even at this equity.
Who is ahead on which flops
The flop changes the picture. A7s does best on paired flops, at 61.67%, and worst on monotone flops, at 54.07%. A7s stays ahead on all five textures.
| Flop | Share of flops | A7s wins | Ties | J9s wins | A7s equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 24.543 | 55.468 | 0.166 | 44.366 | 55.551 |
| Rainbow, nine or lower | 6.366 | 55.637 | 0.551 | 43.812 | 55.912 |
| Two-tone | 46.727 | 55.127 | 0.224 | 44.649 | 55.239 |
| Monotone | 5.273 | 52.377 | 3.393 | 44.230 | 54.074 |
| Paired | 17.091 | 61.346 | 0.637 | 38.017 | 61.665 |
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
Compared with a random opponent, this matchup shifts A7s from 60.98% by -4.58 points and J9s from 55.66% by -12.06 points.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| A7s, all flops | 56.395 | 60.984 | -4.589 | 0.92475 |
| A7s, rainbow, ten or higher | 55.551 | 60.984 | -5.433 | 0.91091 |
| A7s, rainbow, nine or lower | 55.912 | 60.984 | -5.072 | 0.91683 |
| A7s, two-tone | 55.239 | 60.984 | -5.745 | 0.90579 |
| A7s, monotone | 54.074 | 60.984 | -6.910 | 0.88669 |
| A7s, paired | 61.665 | 60.984 | +0.681 | 1.01117 |
| J9s, all flops | 43.605 | 55.662 | -12.057 | 0.78339 |
| J9s, rainbow, ten or higher | 44.449 | 55.662 | -11.213 | 0.79855 |
| J9s, rainbow, nine or lower | 44.088 | 55.662 | -11.574 | 0.79207 |
| J9s, two-tone | 44.761 | 55.662 | -10.901 | 0.80416 |
| J9s, monotone | 45.926 | 55.662 | -9.736 | 0.82509 |
| J9s, paired | 38.335 | 55.662 | -17.327 | 0.68871 |
Does a shared suit matter?
Split by suits, the deals give A7s 58.20% when the hands overlap in a suit and 55.80% when they do not. A7s does better with a shared suit, by 2.40 points.
| Deals | Specific deals | Share of deals | A7s wins | Ties | J9s wins | A7s equity |
|---|---|---|---|---|---|---|
| Share a suit | 4 | 25.00 | 57.924 | 0.543 | 41.533 | 58.195 |
| No shared suit | 12 | 75.00 | 55.574 | 0.443 | 43.983 | 55.795 |
How often this matchup comes up
You will meet this exact matchup 0.0020% of the time in a random heads-up deal: 32 of 1,624,350, counting either seat order.
A worked example
Try it with money: two players each put in $100 and the whole board runs out every possible way. A7s averages $112.80 from the $200, up $12.80; J9s averages $87.20, down $12.80.
In 1,000 deals of exactly this matchup, expect about 561 won outright by A7s, about 434 won outright by J9s and about 5 split.
The same matchup from the other side
Read it from the other side: J9s against A7s is the same matchup with the numbers swapped, so J9s holds 43.60% and A7s holds 56.40%. That address sends you back to this page.
Keep exploring
Try As7s against Jh9h in the calculator: the hands share no suit, and every card can be changed. The links after it are the closest matchups in the ranking.
How this was computed
All 1,712,304 five-card boards are dealt for every suit pattern among the 16 specific deals of A7s against J9s, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains.
Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.
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