55 vs 65s
Pair against one overcard — roughly 70/30 in the pair's favour.
- 55 Win
- 58.5%
- Tie
- 3.4%
- 55 Lose
- 38.0%
- Card combinations
- 12
- 55 vs random
- 60.3% · #27
- 65s vs random
- 43.0% · #128
Win, tie and loss for 55
When 55 and 65s get all in before the flop, 55 wins 60.3% of the time and 65s takes 39.7%. Broken down, 55 wins outright 58.5%, chops 3.4% and loses 38.0% — a margin of 20.5 points. Pair against one overcard — roughly 70/30 in the pair's favour.
The same matchup shifts depending on how the suits overlap. With no shared suit the number is 60.3% (for example 5s 5h against 6d 5d); with no shared suit it is 60.3% (5s 5h against 6d 5d). That is a spread of 0 points across the 12 distinct card combinations, and it comes almost entirely from whether the two hands are fighting over the same flush.
Add a third player holding a random hand and the split becomes 55 36.1%, 65s 27.8%, random 36.1%. 55 gives up 24.2 points and 65s gives up 12, so the favourite loses more than the underdog does. Extra players always eat into the leader's share faster than into anyone else's.
Taken on their own, 55 is worth 60.3% against a random hand (rank 27 of 169) and 65s is worth 43.0% (rank 128). The gap between them in the ranking is only 17.3 points, yet head to head the gap is 20.5 points — a reminder that a ranking table and a direct matchup are two different questions.
Framed as a run of one hundred identical all-ins, 55 scoops roughly 59 pots, splits about 3, and loses the remaining 38. Against eight random opponents rather than this one specific hand, 55 would be down to 13.2% and 65s to 12.6%, so the shape of this particular confrontation matters far more than either hand's standing in the overall ranking.
From 65s's side, 39.7% is the break-even point for calling an all-in at 1.52:1 pot odds. Put another way, the call is profitable as long as the amount you have to put in is less than 39.7% of the pot you are playing for. 55 holds the other 60.3% of that same pot.
Two caveats keep this figure honest. First, it is showdown equity across all 12 card combinations with five board cards still to come — there is no fold equity in it, so the value of shoving in practice is usually higher than the raw percentage suggests. Second, it assumes 65s really does hold exactly 65s; against the wider range a player would actually get all in with, 55's 60.3% moves. Use the individual pages for 55 and 65s to see how each of them fares against all 168 other holdings before treating this single pairing as the whole picture.
Overlapping suits move the number
200,000 simulated showdowns per condition. The example column shows one concrete four-card layout.
| Condition | Example | Combos | 55 Equity | Win | Tie | Lose |
|---|---|---|---|---|---|---|
| No shared suit | 5s 5h vs 6d 5d | 12 | 60.3% | 58.5% | 3.4% | 38.0% |
Adding a random third hand
200,000 simulated showdowns, with the third hand dealt at random each time.
At a bigger table
| Random opponents | 55 | 65s |
|---|---|---|
| 1 | 60.3% | 43.0% |
| 2 | 40.1% | 30.1% |
| 4 | 22.6% | 19.5% |
| 8 | 13.2% | 12.6% |
Related
FAQ
55 or 65s — which is ahead preflop?
55 is the favourite. 55 takes 60.3% and 65s 39.7%, a margin of 20.5 points, with 3.4% of hands ending in a chop.
Do the suits change 55 vs 65s?
Yes. With no shared suit it is 60.3%, and with no shared suit it is 60.3% — a swing of up to 0 points.
What happens three-way?
With one extra random hand in the pot the split is 55 36.1%, 65s 27.8%, random 36.1%. 55 drops 24.2 points compared with heads-up.
428 words / 30 distinct figures — Method