66
61.51%
Wins 60.14%, ties 2.75%
86s
38.49%
Wins 37.11%, ties 2.75%
66 against 86s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| 66 | 60.136 | 2.749 | 37.115 | 61.510 |
| 86s | 37.115 | 2.749 | 60.136 | 38.490 |
66 and 86s are a pocket pair and a suited hand, in that order. The non-pair hand shares a rank with the pair, so two of its outs for pairing are blocked by the pair itself.
The lead is steady rather than large, and the flop still has plenty of say in who wins. Ties are 2.75% of the outcomes here; each tied board gives both hands half the pot.
Ranked by equity against a random hand, 66 is number 17 of the 169 starting hands and 86s is number 110.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| 66 | 12,357,000 | 565,000 | 7,626,000 |
| 86s | 7,626,000 | 565,000 | 12,357,000 |
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.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| 66 | 1.598 | 1.663 | 2.694 | 0.626 |
| 86s | 0.626 | 2.694 | 1.663 | 1.598 |
The last column is the smallest pot odds, written as a pot-to-call ratio, at which a call breaks even with this equity.
Who is ahead on which flops
Paired flops are the best for 66 (66.18%); low rainbow flops (nine high or lower) are the worst (48.74%). On low rainbow flops (nine high or lower) the numbers flip and 86s is the one ahead.
| Flop | Share of flops | 66 wins | Ties | 86s wins | 66 equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 25.786 | 64.170 | 1.760 | 34.070 | 65.050 |
| Rainbow, nine or lower | 4.995 | 45.453 | 6.574 | 47.973 | 48.740 |
| Two-tone | 46.236 | 58.259 | 2.349 | 39.392 | 59.434 |
| Monotone | 5.152 | 57.045 | 3.227 | 39.728 | 58.659 |
| Paired | 17.831 | 64.176 | 4.005 | 31.819 | 66.179 |
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
A random hand would give 66 63.29% and 86s 46.24%. Against each other the change is -1.78 points for 66 and -7.75 for 86s.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| 66, all flops | 61.510 | 63.285 | -1.775 | 0.97195 |
| 66, rainbow, ten or higher | 65.050 | 63.285 | +1.765 | 1.02789 |
| 66, rainbow, nine or lower | 48.740 | 63.285 | -14.545 | 0.77017 |
| 66, two-tone | 59.434 | 63.285 | -3.851 | 0.93915 |
| 66, monotone | 58.659 | 63.285 | -4.626 | 0.92690 |
| 66, paired | 66.179 | 63.285 | +2.894 | 1.04573 |
| 86s, all flops | 38.490 | 46.243 | -7.753 | 0.83234 |
| 86s, rainbow, ten or higher | 34.950 | 46.243 | -11.293 | 0.75579 |
| 86s, rainbow, nine or lower | 51.260 | 46.243 | +5.017 | 1.10849 |
| 86s, two-tone | 40.566 | 46.243 | -5.677 | 0.87724 |
| 86s, monotone | 41.341 | 46.243 | -4.902 | 0.89399 |
| 86s, paired | 33.821 | 46.243 | -12.422 | 0.73138 |
Does a shared suit matter?
These two classes cannot share a suit in any legal deal, so there is only one row to read: 66 holds 61.51% in every deal of this matchup.
| Deals | Specific deals | Share of deals | 66 wins | Ties | 86s wins | 66 equity |
|---|---|---|---|---|---|---|
| Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible |
| No shared suit | 12 | 100.00 | 60.136 | 2.749 | 37.115 | 61.510 |
How often this matchup comes up
The class pair covers 12 combinations of specific cards in a fixed seat order, 0.0007% of 1,624,350, and 24 (0.0015%) in either order.
A worked example
A $100 all-in from each player makes a $200 pot, and the exact equity says 66 gets $123.02 of it on average and 86s gets $76.98.
Think in thousands: about 601 of 1,000 go to 66, about 371 go to 86s, and about 28 are chopped.
The same matchup from the other side
The reversed view, 86s against 66, shows 38.49% for 86s and 61.51% for 66. It is the same count, so it redirects here.
Keep exploring
Open the calculator with 6s6h against 8d6d 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
Method: exact enumeration. The 12 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.
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