--- title: "K9o vs T8s: preflop equity" url: "https://georgelipoker.com/equity/k9o-vs-t8s.md" canonical_url: "https://georgelipoker.com/equity/k9o-vs-t8s" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, K9o or T8s? K9o leads 57.96% to 42.04% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/k9o-vs-t9o.md", "https://georgelipoker.com/equity/k9o-vs-98s.md", "https://georgelipoker.com/equity/q9s-vs-t8s.md"] --- # K9o vs T8s: preflop equity Who is ahead, K9o or T8s? K9o leads 57.96% to 42.04% before the flop, counted exactly over every board, with the split by flop type and suit. Dealt all in against each other, K9o takes 57.96% of the pot on average and T8s takes the other 42.04%. ## K9o against T8s: the numbers **Exact preflop results for K9o against T8s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | K9o | 57.633 | 0.653 | 41.714 | 57.959 | | T8s | 41.714 | 0.653 | 57.633 | 42.041 | The matchup pits an offsuit hand against a suited hand. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other. A 15.92 point lead is real, and T8s still takes about 417 of every 1,000 deals outright. Ties are 0.65% of the outcomes here; each tied board gives both hands half the pot. By strength against a random hand, K9o holds place 40 of 169 and T8s holds place 73. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | K9o | 47,369,000 | 537,000 | 34,285,000 | | T8s | 34,285,000 | 537,000 | 47,369,000 | 48 specific deals times 1,712,304 boards gives the exact total. The won, tied and lost counts are approximations from the five-decimal percentages, rounded to the nearest thousand. **K9o against T8s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | K9o | 1.379 | 1.735 | 2.397 | 0.725 | | T8s | 0.725 | 2.397 | 1.735 | 1.379 | 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 By flop texture, K9o's equity runs from 55.57% on monotone flops up to 61.85% on paired flops. K9o stays ahead on all five textures. **K9o against T8s by flop texture, in percent** | Flop | Share of flops | K9o wins | Ties | T8s wins | K9o equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 24.665 | 59.283 | 0.333 | 40.384 | 59.450 | | Rainbow, nine or lower | 6.365 | 56.705 | 0.544 | 42.751 | 56.977 | | Two-tone | 46.667 | 55.971 | 0.353 | 43.676 | 56.148 | | Monotone | 5.212 | 54.345 | 2.441 | 43.214 | 55.566 | | Paired | 17.091 | 61.138 | 1.427 | 37.435 | 61.852 | 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 Start from the random-hand figures, 57.81% for K9o and 52.33% for T8s. This opponent changes them by +0.15 and -10.29 points. **K9o and T8s 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 | | --- | --- | --- | --- | --- | | K9o, all flops | 57.959 | 57.812 | +0.147 | 1.00254 | | K9o, rainbow, ten or higher | 59.450 | 57.812 | +1.638 | 1.02833 | | K9o, rainbow, nine or lower | 56.977 | 57.812 | -0.835 | 0.98556 | | K9o, two-tone | 56.148 | 57.812 | -1.664 | 0.97122 | | K9o, monotone | 55.566 | 57.812 | -2.246 | 0.96115 | | K9o, paired | 61.852 | 57.812 | +4.040 | 1.06988 | | T8s, all flops | 42.041 | 52.334 | -10.293 | 0.80332 | | T8s, rainbow, ten or higher | 40.550 | 52.334 | -11.784 | 0.77483 | | T8s, rainbow, nine or lower | 43.023 | 52.334 | -9.311 | 0.82209 | | T8s, two-tone | 43.852 | 52.334 | -8.482 | 0.83793 | | T8s, monotone | 44.434 | 52.334 | -7.900 | 0.84905 | | T8s, paired | 38.148 | 52.334 | -14.186 | 0.72893 | ## Does a shared suit matter? Split by suits, the deals give K9o 58.46% when the hands overlap in a suit and 57.46% when they do not. K9o does better with a shared suit, by 1.00 points. **K9o against T8s by suit overlap, in percent** | Deals | Specific deals | Share of deals | K9o wins | Ties | T8s wins | K9o equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 58.111 | 0.693 | 41.196 | 58.458 | | No shared suit | 24 | 50.00 | 57.155 | 0.612 | 42.233 | 57.461 | ## How often this matchup comes up Counting specific cards, K9o against T8s appears in 48 of the 1,624,350 ordered heads-up deals (0.0030%), and in 96 when the seats are swapped too (0.0059%). ## A worked example Put $100 each into a $200 pot and deal every board once: K9o averages $115.92 back, ahead of its $100 by $15.92, while T8s averages $84.08, short of its $100 by $15.92. Think in thousands: about 576 of 1,000 go to K9o, about 417 go to T8s, and about 7 are chopped. ## The same matchup from the other side T8s against K9o adds nothing new: it is 42.04% for T8s and 57.96% for K9o, the same figures reversed. ## Keep exploring Try Ks9h against Td8d 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. - [Open Ks9h against Td8d in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=Ks9h&p2=Td8d) - [K9o combos](https://georgelipoker.com/combos/k9o.md) - [T8s combos](https://georgelipoker.com/combos/t8s.md) - [K9o vs T9o](https://georgelipoker.com/equity/k9o-vs-t9o.md) - [K9o vs 98s](https://georgelipoker.com/equity/k9o-vs-98s.md) - [Q9s vs T8s](https://georgelipoker.com/equity/q9s-vs-t8s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Nothing here is simulated. The 48 deals of K9o against T8s fall into a few suit patterns, each dealt against all 1,712,304 boards, with both best five-card hands compared on every board. Ties give each hand half a win, and the flop rows count a board under each of its ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [K9o vs T9o: preflop equity](https://georgelipoker.com/equity/k9o-vs-t9o.md) - [K9o vs 98s: preflop equity](https://georgelipoker.com/equity/k9o-vs-98s.md) - [Q9s vs T8s: preflop equity](https://georgelipoker.com/equity/q9s-vs-t8s.md)