--- title: "KK vs K9o: preflop equity" url: "https://georgelipoker.com/equity/kk-vs-k9o.md" canonical_url: "https://georgelipoker.com/equity/kk-vs-k9o" last_updated: "2026-10-23" type: "reference" summary: "KK is a big favorite over K9o before the flop: 92.35% to 7.66% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kk-vs-q9s.md", "https://georgelipoker.com/equity/kk-vs-jts.md", "https://georgelipoker.com/equity/qq-vs-k9o.md"] --- # KK vs K9o: preflop equity KK is a big favorite over K9o before the flop: 92.35% to 7.66% equity, counted exactly over every board, with the split by flop type and suit. If KK and K9o get all the chips in before the flop, KK owns 92.35% of the pot in the long run and K9o owns 7.65%. ## KK against K9o: the numbers **Exact preflop results for KK against K9o, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KK | 91.689 | 1.312 | 6.999 | 92.345 | | K9o | 6.999 | 1.312 | 91.689 | 7.655 | We compare a pocket pair with an offsuit hand. The non-pair hand shares a rank with the pair, so two of its outs for pairing are blocked by the pair itself. A gap this wide means K9o is in trouble before the flop and has few good runouts. About 1.31% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. In the ranking of all 169 starting hands, KK is number 2 and K9o is number 40. **Boards behind the percentages: 61,642,944 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KK | 56,520,000 | 809,000 | 4,314,000 | | K9o | 4,314,000 | 809,000 | 56,520,000 | 36 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. **KK against K9o read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KK | 12.063 | 1.091 | 14.288 | 0.083 | | K9o | 0.083 | 14.288 | 1.091 | 12.063 | 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 Break the boards down by their first three cards and KK is strongest on low rainbow flops (nine high or lower) (94.04%) and weakest on monotone flops (83.19%). KK stays ahead on all five textures. **KK against K9o by flop texture, in percent** | Flop | Share of flops | KK wins | Ties | K9o wins | KK equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.782 | 92.731 | 1.602 | 5.667 | 93.532 | | Rainbow, nine or lower | 7.042 | 93.476 | 1.123 | 5.401 | 94.037 | | Two-tone | 46.215 | 91.665 | 1.422 | 6.913 | 92.376 | | Monotone | 5.130 | 82.208 | 1.967 | 15.825 | 83.191 | | Paired | 17.831 | 92.383 | 0.525 | 7.092 | 92.646 | 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 Relative to a random opponent, KK changes by +9.95 points (baseline 82.40%) and K9o by -50.16 points (baseline 57.81%). **KK and K9o 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 | | --- | --- | --- | --- | --- | | KK, all flops | 92.345 | 82.396 | +9.949 | 1.12075 | | KK, rainbow, ten or higher | 93.532 | 82.396 | +11.136 | 1.13515 | | KK, rainbow, nine or lower | 94.037 | 82.396 | +11.641 | 1.14128 | | KK, two-tone | 92.376 | 82.396 | +9.980 | 1.12112 | | KK, monotone | 83.191 | 82.396 | +0.795 | 1.00965 | | KK, paired | 92.646 | 82.396 | +10.250 | 1.12440 | | K9o, all flops | 7.655 | 57.812 | -50.157 | 0.13241 | | K9o, rainbow, ten or higher | 6.468 | 57.812 | -51.344 | 0.11188 | | K9o, rainbow, nine or lower | 5.963 | 57.812 | -51.849 | 0.10314 | | K9o, two-tone | 7.624 | 57.812 | -50.188 | 0.13188 | | K9o, monotone | 16.809 | 57.812 | -41.003 | 0.29075 | | K9o, paired | 7.354 | 57.812 | -50.458 | 0.12721 | ## Does a shared suit matter? Looking only at deals where the hands share a suit, KK has 92.64%; looking only at deals where they do not, 91.76%. KK does better with a shared suit, by 0.88 points. **KK against K9o by suit overlap, in percent** | Deals | Specific deals | Share of deals | KK wins | Ties | K9o wins | KK equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 66.67 | 91.965 | 1.343 | 6.692 | 92.637 | | No shared suit | 12 | 33.33 | 91.137 | 1.248 | 7.615 | 91.761 | ## How often this matchup comes up How often does it happen? 36 of the 1,624,350 ordered deals (0.0022%) are KK against K9o, and 72 (0.0044%) if either hand may sit in either seat. ## A worked example With $100 from each side, the $200 pot is split on average as $184.70 for KK and $15.30 for K9o; the first side gains $84.70 per all-in and the second gives up $84.70. Over a long run, 1,000 deals split into about 917 for KK, 70 for K9o and 13 tied. ## The same matchup from the other side If you came looking for K9o against KK, the numbers are the same with the hands swapped: 7.65% and 92.35%. ## Keep exploring Open the calculator with KsKh against Kd9c already entered, a deal with no shared suit, and change any card to try your own hand. The matchups after it each swap one hand for a nearby one in the ranking. - [Open KsKh against Kd9c in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsKh&p2=Kd9c) - [KK combos](https://georgelipoker.com/combos/kk.md) - [K9o combos](https://georgelipoker.com/combos/k9o.md) - [KK vs Q9s](https://georgelipoker.com/equity/kk-vs-q9s.md) - [KK vs JTs](https://georgelipoker.com/equity/kk-vs-jts.md) - [QQ vs K9o](https://georgelipoker.com/equity/qq-vs-k9o.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed The page is built from a full enumeration: 1,712,304 boards, every suit pattern of the 36 specific deals, both seven-card hands evaluated. A tie is worth half a win to each hand, and a board is tallied under each of its ten possible flops for the texture rows. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [KK vs Q9s: preflop equity](https://georgelipoker.com/equity/kk-vs-q9s.md) - [KK vs JTs: preflop equity](https://georgelipoker.com/equity/kk-vs-jts.md) - [QQ vs K9o: preflop equity](https://georgelipoker.com/equity/qq-vs-k9o.md)