--- title: "KTs vs A4s: preflop equity" url: "https://georgelipoker.com/equity/kts-vs-a4s.md" canonical_url: "https://georgelipoker.com/equity/kts-vs-a4s" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, KTs or A4s? A4s leads 56.79% to 43.21% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/kts-vs-a3s.md", "https://georgelipoker.com/equity/kts-vs-qjo.md", "https://georgelipoker.com/equity/kqo-vs-a4s.md"] --- # KTs vs A4s: preflop equity Who is ahead, KTs or A4s? A4s leads 56.79% to 43.21% before the flop, counted exactly over every board, with the split by flop type and suit. In equity, A4s against KTs stands at 56.79% to 43.21%, a gap of 13.58 points. ## KTs against A4s: the numbers **Exact preflop results for KTs against A4s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | KTs | 42.952 | 0.523 | 56.525 | 43.213 | | A4s | 56.525 | 0.523 | 42.952 | 56.787 | The matchup is suited hands on both sides, KTs against A4s. The two hands share no rank, which makes this a pure matchup of card strength, straight chances and flush chances. A 13.58 point lead is real, and KTs still takes about 430 of every 1,000 deals outright. The tie share is 0.52%: on those boards the pot is chopped and neither hand wins outright. The hand ranking puts KTs at 22 and A4s at 35 out of 169 starting hands. **Boards behind the percentages: 27,396,864 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | KTs | 11,768,000 | 143,000 | 15,486,000 | | A4s | 15,486,000 | 143,000 | 11,768,000 | 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. **KTs against A4s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | KTs | 0.761 | 2.328 | 1.769 | 1.314 | | A4s | 1.314 | 1.769 | 2.328 | 0.761 | 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 A4s prefers low rainbow flops (nine high or lower), where it holds 73.70%, and likes rainbow flops topped by a ten or better least, where it holds 50.81%. A4s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **KTs against A4s by flop texture, in percent** | Flop | Share of flops | KTs wins | Ties | A4s wins | KTs equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.867 | 49.111 | 0.163 | 50.726 | 49.193 | | Rainbow, nine or lower | 7.042 | 25.874 | 0.851 | 73.275 | 26.300 | | Two-tone | 46.727 | 44.276 | 0.287 | 55.437 | 44.419 | | Monotone | 5.273 | 43.986 | 3.437 | 52.577 | 45.705 | | Paired | 17.091 | 37.448 | 0.637 | 61.915 | 37.767 | 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 A random hand would give KTs 61.79% and A4s 59.03%. Against each other the change is -18.58 points for KTs and -2.24 for A4s. **KTs and A4s 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 | | --- | --- | --- | --- | --- | | KTs, all flops | 43.213 | 61.789 | -18.576 | 0.69936 | | KTs, rainbow, ten or higher | 49.193 | 61.789 | -12.596 | 0.79614 | | KTs, rainbow, nine or lower | 26.300 | 61.789 | -35.489 | 0.42564 | | KTs, two-tone | 44.419 | 61.789 | -17.370 | 0.71888 | | KTs, monotone | 45.705 | 61.789 | -16.084 | 0.73969 | | KTs, paired | 37.767 | 61.789 | -24.022 | 0.61123 | | A4s, all flops | 56.787 | 59.034 | -2.247 | 0.96194 | | A4s, rainbow, ten or higher | 50.807 | 59.034 | -8.227 | 0.86064 | | A4s, rainbow, nine or lower | 73.700 | 59.034 | +14.666 | 1.24843 | | A4s, two-tone | 55.581 | 59.034 | -3.453 | 0.94151 | | A4s, monotone | 54.295 | 59.034 | -4.739 | 0.91972 | | A4s, paired | 62.233 | 59.034 | +3.199 | 1.05419 | ## Does a shared suit matter? Looking only at deals where the hands share a suit, A4s has 58.66%; looking only at deals where they do not, 56.16%. A4s does better with a shared suit, by 2.50 points. **KTs against A4s by suit overlap, in percent** | Deals | Specific deals | Share of deals | KTs wins | Ties | A4s wins | KTs equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 4 | 25.00 | 41.038 | 0.604 | 58.358 | 41.340 | | No shared suit | 12 | 75.00 | 43.590 | 0.496 | 55.914 | 43.838 | ## How often this matchup comes up KTs against A4s is made up of 16 specific-card matchups in one seat order, 0.0010% of the 1,624,350 ordered deals, and 32 counting both seat orders, 0.0020%. ## A worked example Worked example: both players commit $100, so $200 sits in the middle. Over every board, A4s' average share is $113.58 (a gain of $13.58) and KTs' is $86.42 (a loss of $13.58). Over a long run, 1,000 deals split into about 565 for A4s, 430 for KTs and 5 tied. ## The same matchup from the other side The reversed view, A4s against KTs, shows 56.79% for A4s and 43.21% for KTs. It is the same count, so it redirects here. ## Keep exploring Open the calculator with KsTs against Ah4h 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 KsTs against Ah4h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=KsTs&p2=Ah4h) - [KTs combos](https://georgelipoker.com/combos/kts.md) - [A4s combos](https://georgelipoker.com/combos/a4s.md) - [KTs vs A3s](https://georgelipoker.com/equity/kts-vs-a3s.md) - [KTs vs QJo](https://georgelipoker.com/equity/kts-vs-qjo.md) - [KQo vs A4s](https://georgelipoker.com/equity/kqo-vs-a4s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed Each figure is a complete count over boards. Take the 16 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 - [KTs vs A3s: preflop equity](https://georgelipoker.com/equity/kts-vs-a3s.md) - [KTs vs QJo: preflop equity](https://georgelipoker.com/equity/kts-vs-qjo.md) - [KQo vs A4s: preflop equity](https://georgelipoker.com/equity/kqo-vs-a4s.md)