--- title: "KJs vs KJo: preflop equity" url: "https://georgelipoker.com/equity/kjs-vs-kjo.md" canonical_url: "https://georgelipoker.com/equity/kjs-vs-kjo" last_updated: "2026-10-23" type: "reference" summary: "KJs vs KJo is close to a coin flip before the flop: 52.49% to 47.51% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kjs-vs-55.md", "https://georgelipoker.com/equity/kjs-vs-qjs.md", "https://georgelipoker.com/equity/a8s-vs-kjo.md"] --- # KJs vs KJo: preflop equity KJs vs KJo is close to a coin flip before the flop: 52.49% to 47.51% equity, counted exactly over every board, with the split by flop type and suit. In equity, KJs against KJo stands at 52.49% to 47.51%, a gap of 4.98 points. ## KJs against KJo: the numbers **Exact preflop results for KJs against KJo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KJs | 7.158 | 90.669 | 2.173 | 52.492 | | KJo | 2.173 | 90.669 | 7.158 | 47.508 | The matchup pits a suited hand against an offsuit hand. The cards are the same ranks, so any difference in equity comes from suitedness alone. With only 4.98 points between them, the board decides this matchup far more than the cards in hand. Of every 100 boards, about 90.67 are split pots, and the equity figures already include them. In the ranking of all 169 starting hands, KJs is number 20 and KJo is number 26. **Boards behind the percentages: 41,095,296 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KJs | 2,942,000 | 37,261,000 | 893,000 | | KJo | 893,000 | 37,261,000 | 2,942,000 | The total is exact: 24 specific deals times 1,712,304 boards. The three counts are approximate, worked out from the percentages to five decimals and rounded to the nearest thousand. **KJs against KJo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KJs | 1.105 | 13.970 | 46.019 | 0.905 | | KJo | 0.905 | 46.019 | 13.970 | 1.105 | 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 The flop changes the picture. KJs does best on two-tone flops, at 53.28%, and worst on monotone flops, at 50.29%. KJs stays ahead on all five textures, and the gap between its best and worst is only 2.99 points, so the shape of the flop hardly changes who is favored. **KJs against KJo by flop texture, in percent** | Flop | Share of flops | KJs wins | Ties | KJo wins | KJs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.138 | 3.265 | 96.735 | 0.000 | 51.633 | | Rainbow, nine or lower | 7.771 | 3.409 | 96.591 | 0.000 | 51.705 | | Two-tone | 46.363 | 8.829 | 88.901 | 2.270 | 53.280 | | Monotone | 5.152 | 18.513 | 63.543 | 17.944 | 50.285 | | Paired | 17.576 | 6.201 | 92.681 | 1.118 | 52.541 | 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 The table below sets each hand against its own random-hand baseline: a change of -10.08 points for KJs, from 62.57%, and -13.06 for KJo, from 60.57%. **KJs and KJo 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 | | --- | --- | --- | --- | --- | | KJs, all flops | 52.492 | 62.567 | -10.075 | 0.83897 | | KJs, rainbow, ten or higher | 51.633 | 62.567 | -10.934 | 0.82524 | | KJs, rainbow, nine or lower | 51.705 | 62.567 | -10.862 | 0.82639 | | KJs, two-tone | 53.280 | 62.567 | -9.287 | 0.85157 | | KJs, monotone | 50.285 | 62.567 | -12.282 | 0.80370 | | KJs, paired | 52.541 | 62.567 | -10.026 | 0.83976 | | KJo, all flops | 47.508 | 60.569 | -13.061 | 0.78436 | | KJo, rainbow, ten or higher | 48.367 | 60.569 | -12.202 | 0.79854 | | KJo, rainbow, nine or lower | 48.295 | 60.569 | -12.274 | 0.79736 | | KJo, two-tone | 46.720 | 60.569 | -13.849 | 0.77135 | | KJo, monotone | 49.715 | 60.569 | -10.854 | 0.82080 | | KJo, paired | 47.459 | 60.569 | -13.110 | 0.78355 | ## Does a shared suit matter? For this pair the shared-suit row is empty: the two hands cannot both own a card of one suit without reusing a card. **KJs against KJo by suit overlap, in percent** | Deals | Specific deals | Share of deals | KJs wins | Ties | KJo wins | KJs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 24 | 100.00 | 7.158 | 90.669 | 2.173 | 52.492 | ## How often this matchup comes up Counting specific cards, KJs against KJo appears in 24 of the 1,624,350 ordered heads-up deals (0.0015%), and in 48 when the seats are swapped too (0.0030%). ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, KJs' average share is $104.98 (a gain of $4.98) and KJo's is $95.02 (a loss of $4.98). Run 1,000 deals and the tally comes out near 71 for KJs, 22 for KJo and 907 ties. ## The same matchup from the other side Swap the hands and you get KJo with 47.51% against KJs with 52.49%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring KsJs against KhJd 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. - [Open KsJs against KhJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsJs&p2=KhJd) - [KJs combos](https://georgelipoker.com/combos/kjs.md) - [KJo combos](https://georgelipoker.com/combos/kjo.md) - [KJs vs 55](https://georgelipoker.com/equity/kjs-vs-55.md) - [KJs vs QJs](https://georgelipoker.com/equity/kjs-vs-qjs.md) - [A8s vs KJo](https://georgelipoker.com/equity/a8s-vs-kjo.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 24 specific deals, group them by suit pattern, deal all 1,712,304 boards against each, and compare the two seven-card hands. Equity counts a tie as half a win; the flop rows use every one of a board's ten flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [KJs vs 55: preflop equity](https://georgelipoker.com/equity/kjs-vs-55.md) - [KJs vs QJs: preflop equity](https://georgelipoker.com/equity/kjs-vs-qjs.md) - [A8s vs KJo: preflop equity](https://georgelipoker.com/equity/a8s-vs-kjo.md)