--- title: "A4s vs QTo: preflop equity" url: "https://georgelipoker.com/equity/a4s-vs-qto.md" canonical_url: "https://georgelipoker.com/equity/a4s-vs-qto" last_updated: "2026-10-23" type: "reference" summary: "Who is ahead, A4s or QTo? A4s leads 58.33% to 41.67% before the flop, counted exactly over every board, with the split by flop type and suit." related: ["https://georgelipoker.com/equity/a4s-vs-44.md", "https://georgelipoker.com/equity/a4s-vs-j9s.md", "https://georgelipoker.com/equity/a3s-vs-qto.md"] --- # A4s vs QTo: preflop equity Who is ahead, A4s or QTo? A4s leads 58.33% to 41.67% before the flop, counted exactly over every board, with the split by flop type and suit. Over all 1,712,304 boards that can follow this deal, A4s finishes with 58.33% of the pot and QTo with 41.67%. ## A4s against QTo: the numbers **Exact preflop results for A4s against QTo, in percent** | Hand | Wins | Ties | Loses | Equity | | --- | --- | --- | --- | --- | | A4s | 58.093 | 0.471 | 41.436 | 58.329 | | QTo | 41.436 | 0.471 | 58.093 | 41.671 | A4s, a suited hand, plays QTo, an offsuit hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits. A4s is ahead, but QTo is far from dead: it takes 414 of every 1,000 deals outright. Ties are part of the picture: 0.47% of boards end in a split pot, and each side counts that as half a win. Ranked by equity against a random hand, A4s is number 35 of the 169 starting hands and QTo is number 47. **Boards behind the percentages: 82,190,592 counted in all** | Hand | Boards won, about | Boards tied, about | Boards lost, about | | --- | --- | --- | --- | | A4s | 47,747,000 | 387,000 | 34,056,000 | | QTo | 34,056,000 | 387,000 | 47,747,000 | 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. **A4s against QTo read as odds** | Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) | | --- | --- | --- | --- | --- | | A4s | 1.400 | 1.721 | 2.413 | 0.714 | | QTo | 0.714 | 2.413 | 1.721 | 1.400 | 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 If you know the kind of flop that came, the numbers shift: A4s holds 74.52% on low rainbow flops (nine high or lower) and 50.80% on rainbow flops topped by a ten or better. A4s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal. **A4s against QTo by flop texture, in percent** | Flop | Share of flops | A4s wins | Ties | QTo wins | A4s equity | | --- | --- | --- | --- | --- | --- | | Rainbow, ten or higher | 23.988 | 50.722 | 0.159 | 49.119 | 50.802 | | Rainbow, nine or lower | 7.042 | 74.093 | 0.861 | 25.046 | 74.524 | | Two-tone | 46.667 | 57.782 | 0.296 | 41.922 | 57.930 | | Monotone | 5.212 | 54.163 | 2.393 | 43.444 | 55.359 | | Paired | 17.091 | 63.892 | 0.641 | 35.467 | 64.213 | 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 Start from the random-hand figures, 59.03% for A4s and 57.29% for QTo. This opponent changes them by -0.70 and -15.62 points. **A4s and QTo 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 | | --- | --- | --- | --- | --- | | A4s, all flops | 58.329 | 59.034 | -0.705 | 0.98806 | | A4s, rainbow, ten or higher | 50.802 | 59.034 | -8.232 | 0.86055 | | A4s, rainbow, nine or lower | 74.524 | 59.034 | +15.490 | 1.26239 | | A4s, two-tone | 57.930 | 59.034 | -1.104 | 0.98130 | | A4s, monotone | 55.359 | 59.034 | -3.675 | 0.93775 | | A4s, paired | 64.213 | 59.034 | +5.179 | 1.08773 | | QTo, all flops | 41.671 | 57.291 | -15.620 | 0.72736 | | QTo, rainbow, ten or higher | 49.198 | 57.291 | -8.093 | 0.85874 | | QTo, rainbow, nine or lower | 25.476 | 57.291 | -31.815 | 0.44468 | | QTo, two-tone | 42.070 | 57.291 | -15.221 | 0.73432 | | QTo, monotone | 44.641 | 57.291 | -12.650 | 0.77920 | | QTo, paired | 35.787 | 57.291 | -21.504 | 0.62465 | ## Does a shared suit matter? Of the deals of this matchup, 24 share a suit (A4s at 57.98%) and 24 do not (58.68%). A4s does better with no shared suit, by 0.70 points. **A4s against QTo by suit overlap, in percent** | Deals | Specific deals | Share of deals | A4s wins | Ties | QTo wins | A4s equity | | --- | --- | --- | --- | --- | --- | --- | | Share a suit | 24 | 50.00 | 57.723 | 0.513 | 41.764 | 57.979 | | No shared suit | 24 | 50.00 | 58.464 | 0.429 | 41.107 | 58.678 | ## How often this matchup comes up A4s against QTo is made up of 48 specific-card matchups in one seat order, 0.0030% of the 1,624,350 ordered deals, and 96 counting both seat orders, 0.0059%. ## A worked example Take a $200 pot built from $100 each. A4s' equity of 58.33% is worth $116.66, a $16.66 edge, and QTo's 41.67% is worth $83.34, which is $16.66 under its stake. In 1,000 deals of exactly this matchup, expect about 581 won outright by A4s, about 414 won outright by QTo and about 5 split. ## The same matchup from the other side Swap the hands and you get QTo with 41.67% against A4s with 58.33%. We keep one page per matchup, with the better-ranked hand first. ## Keep exploring Open the calculator with As4s against QhTd 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 As4s against QhTd in the equity calculator](https://georgelipoker.com/tools/equity-calculator.md#p1=As4s&p2=QhTd) - [A4s combos](https://georgelipoker.com/combos/a4s.md) - [QTo combos](https://georgelipoker.com/combos/qto.md) - [A4s vs 44](https://georgelipoker.com/equity/a4s-vs-44.md) - [A4s vs J9s](https://georgelipoker.com/equity/a4s-vs-j9s.md) - [A3s vs QTo](https://georgelipoker.com/equity/a3s-vs-qto.md) - [All hand matchups](https://georgelipoker.com/equity.md) ## How this was computed We counted every case. Each suit pattern of the 48 specific A4s against QTo deals meets all 1,712,304 boards, and the better five-card hand wins; a split pot is half a win each. The flop table reads each board under all ten of its three-card flops. Source: our own exact count from the GeorgeLiPoker poker math library. No outside data is used. ## Related - [A4s vs 44: preflop equity](https://georgelipoker.com/equity/a4s-vs-44.md) - [A4s vs J9s: preflop equity](https://georgelipoker.com/equity/a4s-vs-j9s.md) - [A3s vs QTo: preflop equity](https://georgelipoker.com/equity/a3s-vs-qto.md)