--- title: "64s vs 43s: preflop equity" url: "https://georgelipoker.com/equity/64s-vs-43s.md" canonical_url: "https://georgelipoker.com/equity/64s-vs-43s" last_updated: "2026-10-23" type: "reference" summary: "64s is a big favorite over 43s before the flop: 61.54% to 38.46% equity, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/53s-vs-43s.md", "https://georgelipoker.com/equity/64s-vs-53s.md", "https://georgelipoker.com/equity/54s-vs-43s.md"] --- # 64s vs 43s: preflop equity 64s is a big favorite over 43s before the flop: 61.54% to 38.46% equity, counted exactly over every board, with the split by flop type and suit. If 64s and 43s get all the chips in before the flop, 64s owns 61.54% of the pot in the long run and 43s owns 38.46%. ## 64s against 43s: the numbers **Exact preflop results for 64s against 43s, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | 64s | 49.824 | 23.433 | 26.743 | 61.540 | | 43s | 26.743 | 23.433 | 49.824 | 38.460 | 64s meets 43s, and both are suited hands. Sharing a rank is the signature of a dominated hand, since the weaker hand is usually out-kicked when the shared rank shows up. The lead is steady rather than large, and the flop still has plenty of say in who wins. A split pot comes up on 23.43% of boards, so the wins and the equity differ by half of that. By strength against a random hand, 64s holds place 138 of 169 and 43s holds place 150. **Boards behind the percentages: 20,547,648 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | 64s | 10,238,000 | 4,815,000 | 5,495,000 | | 43s | 5,495,000 | 4,815,000 | 10,238,000 | 12 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. **64s against 43s read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | 64s | 1.600 | 2.007 | 3.739 | 0.625 | | 43s | 0.625 | 3.739 | 2.007 | 1.600 | The final column gives the least the pot must offer for each unit called for a call to break even at this equity. ## Who is ahead on which flops 64s prefers low rainbow flops (nine high or lower), where it holds 64.34%, and likes monotone flops least, where it holds 57.92%. 64s stays ahead on all five textures. **64s against 43s by flop texture, in percent** | Flop | Share of flops | 64s wins | Ties | 43s wins | 64s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 25.844 | 50.493 | 24.494 | 25.013 | 62.740 | | Rainbow, nine or lower | 5.065 | 56.564 | 15.560 | 27.876 | 64.344 | | Two-tone | 46.543 | 50.971 | 20.526 | 28.503 | 61.234 | | Monotone | 5.215 | 48.664 | 18.502 | 32.834 | 57.915 | | Paired | 17.333 | 44.125 | 33.439 | 22.436 | 60.844 | 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 Against one random hand instead, 64s holds 41.33% and 43s holds 38.64%. Facing each other changes that by +20.21 points for 64s and -0.18 points for 43s. **64s and 43s 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 | | --- | --- | --- | --- | --- | | 64s, all flops | 61.540 | 41.333 | +20.207 | 1.48888 | | 64s, rainbow, ten or higher | 62.740 | 41.333 | +21.407 | 1.51792 | | 64s, rainbow, nine or lower | 64.344 | 41.333 | +23.011 | 1.55672 | | 64s, two-tone | 61.234 | 41.333 | +19.901 | 1.48148 | | 64s, monotone | 57.915 | 41.333 | +16.582 | 1.40118 | | 64s, paired | 60.844 | 41.333 | +19.511 | 1.47204 | | 43s, all flops | 38.460 | 38.642 | -0.182 | 0.99529 | | 43s, rainbow, ten or higher | 37.260 | 38.642 | -1.382 | 0.96424 | | 43s, rainbow, nine or lower | 35.656 | 38.642 | -2.986 | 0.92273 | | 43s, two-tone | 38.766 | 38.642 | +0.124 | 1.00321 | | 43s, monotone | 42.085 | 38.642 | +3.443 | 1.08910 | | 43s, paired | 39.156 | 38.642 | +0.514 | 1.01330 | ## Does a shared suit matter? Every legal deal of 64s against 43s leaves the hands with no suit in common, so the suit split does not apply here. **64s against 43s by suit overlap, in percent** | Deals | Specific deals | Share of deals | 64s wins | Ties | 43s wins | 64s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible | | No shared suit | 12 | 100.00 | 49.824 | 23.433 | 26.743 | 61.540 | ## How often this matchup comes up How often does it happen? 12 of the 1,624,350 ordered deals (0.0007%) are 64s against 43s, and 24 (0.0015%) if either hand may sit in either seat. ## A worked example Put $100 each into a $200 pot and deal every board once: 64s averages $123.08 back, ahead of its $100 by $23.08, while 43s averages $76.92, short of its $100 by $23.08. Out of 1,000 deals you should see around 498 outright wins for 64s, 268 for 43s, and 234 split pots. ## The same matchup from the other side Swap the hands and you get 43s with 38.46% against 64s with 61.54%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring Try 6s4s against 4h3h 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 6s4s against 4h3h in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=6s4s&p2=4h3h) - [64s combos](https://georgelipoker.com/combos/64s.md) - [43s combos](https://georgelipoker.com/combos/43s.md) - [53s vs 43s](https://georgelipoker.com/equity/53s-vs-43s.md) - [64s vs 53s](https://georgelipoker.com/equity/64s-vs-53s.md) - [54s vs 43s](https://georgelipoker.com/equity/54s-vs-43s.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed All 1,712,304 five-card boards are dealt for every suit pattern among the 12 specific deals of 64s against 43s, and both hands are scored on each. That is a full count, so the percentages are exact. Ties are half a win each, and each board appears once per flop it contains. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [53s vs 43s: preflop equity](https://georgelipoker.com/equity/53s-vs-43s.md) - [64s vs 53s: preflop equity](https://georgelipoker.com/equity/64s-vs-53s.md) - [54s vs 43s: preflop equity](https://georgelipoker.com/equity/54s-vs-43s.md)