--- title: "K9s vs JTs: preflop equity" url: "https://georgelipoker.com/equity/k9s-vs-jts.md" canonical_url: "https://georgelipoker.com/equity/k9s-vs-jts" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, K9s or JTs? K9s leads 56.21% to 43.79% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/k9s-vs-a2s.md", "https://georgelipoker.com/equity/k9s-vs-qto.md", "https://georgelipoker.com/equity/a5s-vs-jts.md"] --- # K9s vs JTs: preflop equity Who is ahead, K9s or JTs? K9s leads 56.21% to 43.79% before the flop, counted exactly over every board, with the split by flop type and suit. The exact count puts K9s at 56.21% and JTs at 43.79% when the two hands see all five board cards. ## K9s against JTs: the numbers **Exact preflop results for K9s against JTs, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | K9s | 55.857 | 0.699 | 43.444 | 56.207 | | JTs | 43.444 | 0.699 | 55.857 | 43.793 | Two suited hands meet here: K9s against JTs. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. A 12.42 point lead is real, and JTs still takes about 434 of every 1,000 deals outright. 0.70% of boards are ties, so the equity of each hand is its win rate plus half of that. Place 29 of 169 belongs to K9s and place 45 belongs to JTs in the ranking against a random hand. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | K9s | 15,303,000 | 192,000 | 11,902,000 | | JTs | 11,902,000 | 192,000 | 15,303,000 | 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. **K9s against JTs read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | K9s | 1.283 | 1.790 | 2.302 | 0.779 | | JTs | 0.779 | 2.302 | 1.790 | 1.283 | The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity. ## Who is ahead on which flops Break the boards down by their first three cards and K9s is strongest on low rainbow flops (nine high or lower) (69.29%) and weakest on rainbow flops topped by a ten or better (51.34%). K9s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **K9s against JTs by flop texture, in percent** | Flop | Share of flops | K9s wins | Ties | JTs wins | K9s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 51.193 | 0.290 | 48.517 | 51.338 | | Rainbow, nine or lower | 7.042 | 68.937 | 0.714 | 30.349 | 69.294 | | Two-tone | 46.727 | 54.812 | 0.347 | 44.841 | 54.986 | | Monotone | 5.273 | 51.984 | 3.464 | 44.552 | 53.716 | | Paired | 17.091 | 61.031 | 1.376 | 37.593 | 61.719 | Read the flop types this way: rainbow has three suits, two-tone has two cards of one suit, monotone has three, and paired repeats a rank. ## Compared with a random hand How much does the opponent matter? Compared with its random-hand 59.99%, K9s changes by -3.78 points, and JTs, from 57.53%, by -13.74. **K9s and JTs 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 | | --- | --- | --- | --- | --- | | K9s, all flops | 56.207 | 59.988 | -3.781 | 0.93697 | | K9s, rainbow, ten or higher | 51.338 | 59.988 | -8.650 | 0.85580 | | K9s, rainbow, nine or lower | 69.294 | 59.988 | +9.306 | 1.15513 | | K9s, two-tone | 54.986 | 59.988 | -5.002 | 0.91662 | | K9s, monotone | 53.716 | 59.988 | -6.272 | 0.89545 | | K9s, paired | 61.719 | 59.988 | +1.731 | 1.02886 | | JTs, all flops | 43.793 | 57.528 | -13.735 | 0.76125 | | JTs, rainbow, ten or higher | 48.662 | 57.528 | -8.866 | 0.84588 | | JTs, rainbow, nine or lower | 30.706 | 57.528 | -26.822 | 0.53376 | | JTs, two-tone | 45.014 | 57.528 | -12.514 | 0.78247 | | JTs, monotone | 46.284 | 57.528 | -11.244 | 0.80455 | | JTs, paired | 38.281 | 57.528 | -19.247 | 0.66543 | ## Does a shared suit matter? Of the deals of this matchup, 4 share a suit (K9s at 58.06%) and 12 do not (55.59%). K9s does better with a shared suit, by 2.47 points. **K9s against JTs by suit overlap, in percent** | Deals | Specific deals | Share of deals | K9s wins | Ties | JTs wins | K9s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 57.665 | 0.785 | 41.550 | 58.058 | | No shared suit | 12 | 75.00 | 55.254 | 0.671 | 44.075 | 55.590 | ## How often this matchup comes up How often does it happen? 16 of the 1,624,350 ordered deals (0.0010%) are K9s against JTs, and 32 (0.0020%) if either hand may sit in either seat. ## A worked example Try it with money: two players each put in $100 and the whole board runs out every possible way. K9s averages $112.42 from the $200, up $12.42; JTs averages $87.58, down $12.42. Run 1,000 deals and the tally comes out near 559 for K9s, 434 for JTs and 7 ties. ## The same matchup from the other side Read it from the other side: JTs against K9s is the same matchup with the numbers swapped, so JTs holds 43.79% and K9s holds 56.21%. That address sends you back to this page. ## Keep exploring The calculator link fills in Ks9s against JhTh, 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 Ks9s against JhTh in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=Ks9s&p2=JhTh) - [K9s combos](https://georgelipoker.com/combos/k9s.md) - [JTs combos](https://georgelipoker.com/combos/jts.md) - [K9s vs A2s](https://georgelipoker.com/equity/k9s-vs-a2s.md) - [K9s vs QTo](https://georgelipoker.com/equity/k9s-vs-qto.md) - [A5s vs JTs](https://georgelipoker.com/equity/a5s-vs-jts.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed We counted every case. Each suit pattern of the 16 specific K9s against JTs deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [K9s vs A2s: preflop equity](https://georgelipoker.com/equity/k9s-vs-a2s.md) - [K9s vs QTo: preflop equity](https://georgelipoker.com/equity/k9s-vs-qto.md) - [A5s vs JTs: preflop equity](https://georgelipoker.com/equity/a5s-vs-jts.md)