66
81.41%
Wins 79.16%, ties 4.51%
65s
18.59%
Wins 16.33%, ties 4.51%
66 against 65s: the numbers
| Hand | Wins | Ties | Loses | Equity |
|---|---|---|---|---|
| 66 | 79.159 | 4.508 | 16.333 | 81.413 |
| 65s | 16.333 | 4.508 | 79.159 | 18.587 |
66 is a pocket pair and 65s is a suited hand. The non-pair hand shares a rank with the pair, so two of its outs for pairing are blocked by the pair itself.
66 is a big favorite here before anyone sees a flop. Ties are part of the picture: 4.51% of boards end in a split pot, and each side counts that as half a win.
By strength against a random hand, 66 holds place 17 of 169 and 65s holds place 128.
| Hand | Boards won, about | Boards tied, about | Boards lost, about |
|---|---|---|---|
| 66 | 16,265,000 | 926,000 | 3,356,000 |
| 65s | 3,356,000 | 926,000 | 16,265,000 |
Exact total: 12 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.
| Hand | Equity as odds (to 1) | Wins one deal in | Loses one deal in | Pot odds needed to call (to 1) |
|---|---|---|---|---|
| 66 | 4.380 | 1.263 | 6.123 | 0.228 |
| 65s | 0.228 | 6.123 | 1.263 | 4.380 |
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
Rainbow flops topped by a ten or better are the best for 66 (87.41%); low rainbow flops (nine high or lower) are the worst (70.42%). 66 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 | 66 wins | Ties | 65s wins | 66 equity |
|---|---|---|---|---|---|
| Rainbow, ten or higher | 25.786 | 86.013 | 2.802 | 11.185 | 87.414 |
| Rainbow, nine or lower | 4.995 | 66.270 | 8.297 | 25.433 | 70.419 |
| Two-tone | 46.236 | 78.537 | 3.438 | 18.025 | 80.256 |
| Monotone | 5.152 | 71.456 | 4.102 | 24.442 | 73.507 |
| Paired | 17.831 | 76.696 | 8.807 | 14.497 | 81.099 |
A rainbow flop shows three suits, a two-tone flop repeats one suit, a monotone flop is a single suit, and a paired flop repeats a rank.
Compared with a random hand
Compared with a random opponent, this matchup shifts 66 from 63.29% by +18.12 points and 65s from 43.13% by -24.54 points.
| Case | Equity here | Against a random hand | Change in points | Times the random-hand equity |
|---|---|---|---|---|
| 66, all flops | 81.413 | 63.285 | +18.128 | 1.28645 |
| 66, rainbow, ten or higher | 87.414 | 63.285 | +24.129 | 1.38128 |
| 66, rainbow, nine or lower | 70.419 | 63.285 | +7.134 | 1.11273 |
| 66, two-tone | 80.256 | 63.285 | +16.971 | 1.26817 |
| 66, monotone | 73.507 | 63.285 | +10.222 | 1.16152 |
| 66, paired | 81.099 | 63.285 | +17.814 | 1.28149 |
| 65s, all flops | 18.587 | 43.133 | -24.546 | 0.43092 |
| 65s, rainbow, ten or higher | 12.586 | 43.133 | -30.547 | 0.29180 |
| 65s, rainbow, nine or lower | 29.581 | 43.133 | -13.552 | 0.68581 |
| 65s, two-tone | 19.744 | 43.133 | -23.389 | 0.45775 |
| 65s, monotone | 26.493 | 43.133 | -16.640 | 0.61422 |
| 65s, paired | 18.901 | 43.133 | -24.232 | 0.43820 |
Does a shared suit matter?
66 and 65s never overlap in suit in a legal deal, so the whole matchup sits in the no-shared-suit row.
| Deals | Specific deals | Share of deals | 66 wins | Ties | 65s wins | 66 equity |
|---|---|---|---|---|---|---|
| Share a suit | 0 | 0.00 | not possible | not possible | not possible | not possible |
| No shared suit | 12 | 100.00 | 79.159 | 4.508 | 16.333 | 81.413 |
How often this matchup comes up
How often does it happen? 12 of the 1,624,350 ordered deals (0.0007%) are 66 against 65s, and 24 (0.0015%) if either hand may sit in either seat.
A worked example
Take a $200 pot built from $100 each. 66's equity of 81.41% is worth $162.82, a $62.82 edge, and 65s' 18.59% is worth $37.18, which is $62.82 under its stake.
Over a long run, 1,000 deals split into about 792 for 66, 163 for 65s and 45 tied.
The same matchup from the other side
65s against 66 adds nothing new: it is 18.59% for 65s and 81.41% for 66, the same figures reversed.
Keep exploring
Open the calculator with 6s6h against 6d5d 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
We counted every case. Each suit pattern of the 12 specific 66 against 65s 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.
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