A9s
55.47%
Wins 55.23%, ties 0.48%
JTs
44.53%
Wins 44.29%, ties 0.48%
A9s against JTs: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| A9s | 55.231 | 0.482 | 44.287 | 55.472 |
| JTs | 44.287 | 0.482 | 55.231 | 44.528 |
Each side holds one of the suited hands: A9s and JTs. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances.
A9s is ahead, but JTs is far from dead: it takes 443 of every 1,000 deals outright. Ties are part of the picture: 0.48% of boards end in a split pot, and each side counts that as half a win.
A9s ranks number 18 of 169 starting hands, and JTs ranks number 45, by equity against a random hand.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| A9s | 15,132,000 | 132,000 | 12,133,000 |
| JTs | 12,133,000 | 132,000 | 15,132,000 |
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) |
|---|---|---|---|---|
| A9s | 1.246 | 1.811 | 2.258 | 0.803 |
| JTs | 0.803 | 2.258 | 1.811 | 1.246 |
In the last column, a pot-to-call ratio at or above the figure makes a call break even or better at this equity.
Who is ahead on which flops
A9s prefers low rainbow flops (nine high or lower), where it holds 69.42%, and likes rainbow flops topped by a ten or better least, where it holds 50.12%. A9s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.
| Flop | Share of flops | A9s wins | Ties | JTs wins | A9s equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 23.867 | 50.049 | 0.146 | 49.805 | 50.122 |
| Rainbow, nine or lower | 7.042 | 69.070 | 0.689 | 30.241 | 69.415 |
| Two-tone | 46.727 | 54.056 | 0.241 | 45.703 | 54.176 |
| Monotone | 5.273 | 51.391 | 3.399 | 45.210 | 53.091 |
| Paired | 17.091 | 61.166 | 0.624 | 38.210 | 61.478 |
Flop types: rainbow means three different suits, two-tone means one suit twice, monotone means one suit three times, paired means a repeated rank.
Compared with a random hand
A random hand would give A9s 62.78% and JTs 57.53%. Against each other the change is -7.31 points for A9s and -13.00 for JTs.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| A9s, all flops | 55.472 | 62.781 | -7.309 | 0.88358 |
| A9s, rainbow, ten or higher | 50.122 | 62.781 | -12.659 | 0.79836 |
| A9s, rainbow, nine or lower | 69.415 | 62.781 | +6.634 | 1.10567 |
| A9s, two-tone | 54.176 | 62.781 | -8.605 | 0.86294 |
| A9s, monotone | 53.091 | 62.781 | -9.690 | 0.84565 |
| A9s, paired | 61.478 | 62.781 | -1.303 | 0.97925 |
| JTs, all flops | 44.528 | 57.528 | -13.000 | 0.77402 |
| JTs, rainbow, ten or higher | 49.878 | 57.528 | -7.650 | 0.86702 |
| JTs, rainbow, nine or lower | 30.585 | 57.528 | -26.943 | 0.53165 |
| JTs, two-tone | 45.824 | 57.528 | -11.704 | 0.79655 |
| JTs, monotone | 46.909 | 57.528 | -10.619 | 0.81541 |
| JTs, paired | 38.522 | 57.528 | -19.006 | 0.66962 |
Does a shared suit matter?
Suit overlap shows up in the numbers. With a suit in common A9s has 57.25% equity, and with none in common it has 54.88%. A9s does better with a shared suit, by 2.37 points.
| Deals | Specific deals | Share of deals | A9s wins | Ties | JTs wins | A9s equity |
|---|---|---|---|---|---|---|
| Share a suit | 4 | 25.00 | 56.969 | 0.557 | 42.474 | 57.247 |
| No shared suit | 12 | 75.00 | 54.652 | 0.457 | 44.891 | 54.881 |
How often this matchup comes up
The class pair covers 16 combinations of specific cards in a fixed seat order, 0.0010% of 1,624,350, and 32 (0.0020%) in either order.
A worked example
Put $100 each into a $200 pot and deal every board once: A9s averages $110.94 back, ahead of its $100 by $10.94, while JTs averages $89.06, short of its $100 by $10.94.
Out of 1,000 deals you should see around 552 outright wins for A9s, 443 for JTs, and 5 split pots.
The same matchup from the other side
If you came looking for JTs against A9s, the numbers are the same with the hands swapped: 44.53% and 55.47%.
Keep exploring
As9s against JhTh is a ready-made deal for the calculator, with no suit in common between the hands. The neighboring matchups below replace one hand with another of similar strength.
How this was computed
The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 16 specific deals, with both seven-card hands compared each time. Equity gives half a win for a tie. For the flop rows, a board is counted once under each of the ten flops inside it.
Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used.
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