JJ
81.70%
Wins 81.50%, ties 0.41%
T9s
18.30%
Wins 18.09%, ties 0.41%
JJ against T9s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| JJ | 81.495 | 0.409 | 18.096 | 81.700 |
| T9s | 18.096 | 0.409 | 81.495 | 18.300 |
JJ, a pocket pair, plays T9s, a suited hand. The pair outranks both of the other hand's cards, which is why the pair is a strong favorite.
That is a heavy lead: T9s needs the board to help it on most runouts and still falls behind far more often than not. 0.41% of boards are ties, so the equity of each hand is its win rate plus half of that.
In the ranking of all 169 starting hands, JJ is number 4 and T9s is number 64.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| JJ | 33,491,000 | 168,000 | 7,437,000 |
| T9s | 7,437,000 | 168,000 | 33,491,000 |
Exact total: 24 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) |
|---|---|---|---|---|
| JJ | 4.464 | 1.227 | 5.526 | 0.224 |
| T9s | 0.224 | 5.526 | 1.227 | 4.464 |
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
If you know the kind of flop that came, the numbers shift: JJ holds 85.23% on paired flops and 75.54% on monotone flops. JJ stays ahead on all five textures.
| Flop | Share of flops | JJ wins | Ties | T9s wins | JJ equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 23.867 | 83.839 | 0.177 | 15.984 | 83.927 |
| Rainbow, nine or lower | 7.042 | 81.887 | 0.738 | 17.375 | 82.256 |
| Two-tone | 46.545 | 79.707 | 0.281 | 20.012 | 79.847 |
| Monotone | 5.212 | 74.352 | 2.382 | 23.266 | 75.543 |
| Paired | 17.334 | 85.060 | 0.343 | 14.597 | 85.232 |
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
How much does the opponent matter? Compared with its random-hand 77.47%, JJ changes by +4.23 points, and T9s, from 54.03%, by -35.73.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| JJ, all flops | 81.700 | 77.469 | +4.231 | 1.05462 |
| JJ, rainbow, ten or higher | 83.927 | 77.469 | +6.458 | 1.08336 |
| JJ, rainbow, nine or lower | 82.256 | 77.469 | +4.787 | 1.06179 |
| JJ, two-tone | 79.847 | 77.469 | +2.378 | 1.03070 |
| JJ, monotone | 75.543 | 77.469 | -1.926 | 0.97514 |
| JJ, paired | 85.232 | 77.469 | +7.763 | 1.10021 |
| T9s, all flops | 18.300 | 54.028 | -35.728 | 0.33871 |
| T9s, rainbow, ten or higher | 16.073 | 54.028 | -37.955 | 0.29749 |
| T9s, rainbow, nine or lower | 17.744 | 54.028 | -36.284 | 0.32842 |
| T9s, two-tone | 20.153 | 54.028 | -33.875 | 0.37301 |
| T9s, monotone | 24.457 | 54.028 | -29.571 | 0.45267 |
| T9s, paired | 14.768 | 54.028 | -39.260 | 0.27334 |
Does a shared suit matter?
When the hands share a suit, JJ holds 82.26%; when they do not, it holds 81.14%. JJ does better with a shared suit, by 1.12 points.
| Deals | Specific deals | Share of deals | JJ wins | Ties | T9s wins | JJ equity |
|---|---|---|---|---|---|---|
| Share a suit | 12 | 50.00 | 82.031 | 0.449 | 17.520 | 82.256 |
| No shared suit | 12 | 50.00 | 80.960 | 0.368 | 18.672 | 81.144 |
How often this matchup comes up
You will meet this exact matchup 0.0030% of the time in a random heads-up deal: 48 of 1,624,350, counting either seat order.
A worked example
Put $100 each into a $200 pot and deal every board once: JJ averages $163.40 back, ahead of its $100 by $63.40, while T9s averages $36.60, short of its $100 by $63.40.
A thousand deals look like this: JJ takes 815, T9s takes 181, 4 are ties.
The same matchup from the other side
The reversed view, T9s against JJ, shows 18.30% for T9s and 81.70% for JJ. It is the same count, so it redirects here.
Keep exploring
Try JsJh against Td9d 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
The figures are counted, not estimated: 1,712,304 boards for every suit pattern of the 24 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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