A5s
57.12%
Wins 56.89%, ties 0.46%
JTo
42.88%
Wins 42.65%, ties 0.46%
A5s against JTo: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| A5s | 56.887 | 0.461 | 42.652 | 57.118 |
| JTo | 42.652 | 0.461 | 56.887 | 42.882 |
The matchup pits a suited hand against an offsuit hand. Neither hand shares a rank with the other, so this is a contest of high cards, connection and suits.
A 14.24 point lead is real, and JTo still takes about 426 of every 1,000 deals outright. Ties are part of the picture: 0.46% of boards end in a split pot, and each side counts that as half a win.
In the ranking of all 169 starting hands, A5s is number 30 and JTo is number 57.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| A5s | 46,756,000 | 379,000 | 35,056,000 |
| JTo | 35,056,000 | 379,000 | 46,756,000 |
The total is exact: 48 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.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| A5s | 1.332 | 1.758 | 2.345 | 0.751 |
| JTo | 0.751 | 2.345 | 1.758 | 1.332 |
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, A5s peaks at 70.60% on low rainbow flops (nine high or lower) and bottoms out at 50.18% on rainbow flops topped by a ten or better. A5s stays ahead on all five textures, but the swing between them is large, so how the flop looks matters a great deal.
| Flop | Share of flops | A5s wins | Ties | JTo wins | A5s equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 23.988 | 50.101 | 0.165 | 49.734 | 50.183 |
| Rainbow, nine or lower | 7.042 | 70.205 | 0.787 | 29.008 | 70.598 |
| Two-tone | 46.667 | 56.527 | 0.284 | 43.189 | 56.669 |
| Monotone | 5.212 | 53.258 | 2.384 | 44.358 | 54.450 |
| Paired | 17.091 | 63.015 | 0.641 | 36.344 | 63.335 |
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, 59.92% for A5s and 55.25% for JTo. This opponent changes them by -2.80 and -12.37 points.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| A5s, all flops | 57.118 | 59.923 | -2.805 | 0.95319 |
| A5s, rainbow, ten or higher | 50.183 | 59.923 | -9.740 | 0.83746 |
| A5s, rainbow, nine or lower | 70.598 | 59.923 | +10.675 | 1.17815 |
| A5s, two-tone | 56.669 | 59.923 | -3.254 | 0.94570 |
| A5s, monotone | 54.450 | 59.923 | -5.473 | 0.90867 |
| A5s, paired | 63.335 | 59.923 | +3.412 | 1.05694 |
| JTo, all flops | 42.882 | 55.248 | -12.366 | 0.77617 |
| JTo, rainbow, ten or higher | 49.817 | 55.248 | -5.431 | 0.90170 |
| JTo, rainbow, nine or lower | 29.402 | 55.248 | -25.846 | 0.53218 |
| JTo, two-tone | 43.331 | 55.248 | -11.917 | 0.78430 |
| JTo, monotone | 45.550 | 55.248 | -9.698 | 0.82446 |
| JTo, paired | 36.665 | 55.248 | -18.583 | 0.66364 |
Does a shared suit matter?
Suit overlap shows up in the numbers. With a suit in common A5s has 56.76% equity, and with none in common it has 57.48%. A5s does better with no shared suit, by 0.72 points.
| Deals | Specific deals | Share of deals | A5s wins | Ties | JTo wins | A5s equity |
|---|---|---|---|---|---|---|
| Share a suit | 24 | 50.00 | 56.506 | 0.504 | 42.990 | 56.758 |
| No shared suit | 24 | 50.00 | 57.268 | 0.419 | 42.313 | 57.477 |
How often this matchup comes up
How often does it happen? 48 of the 1,624,350 ordered deals (0.0030%) are A5s against JTo, and 96 (0.0059%) if either hand may sit in either seat.
A worked example
Take a $200 pot built from $100 each. A5s' equity of 57.12% is worth $114.24, a $14.24 edge, and JTo's 42.88% is worth $85.76, which is $14.24 under its stake.
In 1,000 deals of exactly this matchup, expect about 569 won outright by A5s, about 426 won outright by JTo and about 5 split.
The same matchup from the other side
Swap the hands and you get JTo with 42.88% against A5s with 57.12%. We keep one page per matchup, with the better-ranked hand first.
Keep exploring
Open the calculator with As5s against JhTd 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.
How this was computed
Each figure is a complete count over boards. Take the 48 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.
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