--- title: "ATs vs KJo: preflop equity" url: "https://georgelipoker.com/equity/ats-vs-kjo.md" canonical_url: "https://georgelipoker.com/equity/ats-vs-kjo" last_updated: "2026-10-23" type: "reference" summary: "ATs is a big favorite over KJo before the flop: 61.84% to 38.16% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/ats-vs-55.md", "https://georgelipoker.com/equity/ats-vs-qjs.md", "https://georgelipoker.com/equity/aqo-vs-kjo.md"] --- # ATs vs KJo: preflop equity ATs is a big favorite over KJo before the flop: 61.84% to 38.16% equity, counted exactly over every board, with the split by flop type and suit. In equity, ATs against KJo stands at 61.84% to 38.16%, a gap of 23.68 points. ## ATs against KJo: the numbers **Exact preflop results for ATs against KJo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | ATs | 61.606 | 0.464 | 37.930 | 61.838 | | KJo | 37.930 | 0.464 | 61.606 | 38.162 | One side is a suited hand, the other is an offsuit hand. With no overlap in ranks, every card that pairs one hand is a card that does not pair the other. ATs is ahead, but KJo is far from dead: it takes 379 of every 1,000 deals outright. About 0.46% of boards chop the pot, which is why equity sits slightly above the win figure for both hands. By strength against a random hand, ATs holds place 13 of 169 and KJo holds place 26. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | ATs | 50,634,000 | 381,000 | 31,175,000 | | KJo | 31,175,000 | 381,000 | 50,634,000 | Exact total: 48 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. **ATs 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) | | --- | --- | --- | --- | --- | | ATs | 1.620 | 1.623 | 2.636 | 0.617 | | KJo | 0.617 | 2.636 | 1.623 | 1.620 | 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 Split by what the flop looks like, ATs peaks at 77.06% on low rainbow flops (nine high or lower) and bottoms out at 54.75% on rainbow flops topped by a ten or better. ATs stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **ATs against KJo by flop texture, in percent** | Flop | Share of flops | ATs wins | Ties | KJo wins | ATs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.260 | 54.691 | 0.119 | 45.190 | 54.751 | | Rainbow, nine or lower | 7.770 | 76.596 | 0.928 | 22.476 | 77.060 | | Two-tone | 46.667 | 61.453 | 0.293 | 38.254 | 61.599 | | Monotone | 5.212 | 56.683 | 2.382 | 40.935 | 57.874 | | Paired | 17.091 | 66.122 | 0.608 | 33.270 | 66.426 | 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 Start from the random-hand figures, 64.60% for ATs and 60.57% for KJo. This opponent changes them by -2.76 and -22.41 points. **ATs 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 | | --- | --- | --- | --- | --- | | ATs, all flops | 61.838 | 64.602 | -2.764 | 0.95721 | | ATs, rainbow, ten or higher | 54.751 | 64.602 | -9.851 | 0.84751 | | ATs, rainbow, nine or lower | 77.060 | 64.602 | +12.458 | 1.19284 | | ATs, two-tone | 61.599 | 64.602 | -3.003 | 0.95352 | | ATs, monotone | 57.874 | 64.602 | -6.728 | 0.89585 | | ATs, paired | 66.426 | 64.602 | +1.824 | 1.02823 | | KJo, all flops | 38.162 | 60.569 | -22.407 | 0.63006 | | KJo, rainbow, ten or higher | 45.249 | 60.569 | -15.320 | 0.74707 | | KJo, rainbow, nine or lower | 22.940 | 60.569 | -37.629 | 0.37874 | | KJo, two-tone | 38.401 | 60.569 | -22.168 | 0.63400 | | KJo, monotone | 42.126 | 60.569 | -18.443 | 0.69550 | | KJo, paired | 33.574 | 60.569 | -26.995 | 0.55431 | ## Does a shared suit matter? Looking only at deals where the hands share a suit, ATs has 61.55%; looking only at deals where they do not, 62.13%. ATs does better with no shared suit, by 0.58 points. **ATs against KJo by suit overlap, in percent** | Deals | Specific deals | Share of deals | ATs wins | Ties | KJo wins | ATs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 61.298 | 0.504 | 38.198 | 61.550 | | No shared suit | 24 | 50.00 | 61.915 | 0.424 | 37.661 | 62.127 | ## How often this matchup comes up This page stands for 48 specific-card matchups (0.0030% of 1,624,350 ordered deals), or 96 once you count the seats both ways (0.0059%). ## A worked example Say each player puts $100 in before the flop, making a $200 pot. On average ATs takes back $123.68 of it, which is $23.68 more than it put in, and KJo takes back $76.32, $23.68 less than it put in. Per 1,000 deals: ATs wins about 616, KJo wins about 379, and about 5 end in a split pot. ## The same matchup from the other side KJo versus ATs is this same page seen from the other hand: 38.16% for KJo, 61.84% for ATs. ## Keep exploring Open the calculator with AsTs against KhJd 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 AsTs against KhJd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=AsTs&p2=KhJd) - [ATs combos](https://georgelipoker.com/combos/ats.md) - [KJo combos](https://georgelipoker.com/combos/kjo.md) - [ATs vs 55](https://georgelipoker.com/equity/ats-vs-55.md) - [ATs vs QJs](https://georgelipoker.com/equity/ats-vs-qjs.md) - [AQo vs KJo](https://georgelipoker.com/equity/aqo-vs-kjo.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Method: exact enumeration. The 48 specific deals are grouped by suit pattern, each is run against all 1,712,304 boards, and both seven-card hands are scored. Equity adds half of every tie, and flop textures are tallied over the ten flops inside each board. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [ATs vs 55: preflop equity](https://georgelipoker.com/equity/ats-vs-55.md) - [ATs vs QJs: preflop equity](https://georgelipoker.com/equity/ats-vs-qjs.md) - [AQo vs KJo: preflop equity](https://georgelipoker.com/equity/aqo-vs-kjo.md)