
The debate over the legitimacy of cold calling has been going on in the poker world for a long time. Some players are convinced that cold calling is an integral part of a sound poker strategy, while others believe you should have a raise-fold-only approach.
Which group is right? The answer heavily depends on the format you play, as what works in Texas Hold'em tournaments often translates poorly to the cash game scenarios, let alone to Omaha games.
That's why we'd like to shed some light on cold calling in Pot Limit Omaha in this article.

Let's start with the basics - what qualifies as a cold call? That term refers to a situation where at least one raise is in front of you, and you decide to call (instead of raise or fold). Usually, in such a scenario, you do not close the action, so there is at least one player behind who can raise the previous bets.
So, should you cold call opens in PLO?
The short answer is yes. Unlike limping, which is generally a play we advise against (following the solver's output), cold-calling makes sense in some scenarios.
Why is that? If you choose a hand to cold call with correctly:
Of course, there is another side of the coin, and cold calling includes some risks, namely:
It's worth mentioning that the rake is a significant factor when we talk about an optimal poker strategy in Pot Limit Omaha. It influences it so much that every solution by our PLO solver - PLO Genius - can be prepared for seven different rake structures.
How much should rake affect your range?
For PLO4 at 100 BB depth, the ranges for the Button vs the UTG open look like this (for different rake structures, compared side by side with the Compare tool):


These discrepancies will differ in various spots, but that's not the point since the exact numbers are not crucial. The most important takeaway is that you need a rough idea of how things change when the rake is lower or higher.
As with many concepts in poker, the validity of choosing a cold call over a raise or a fold is highly contextual. Whenever you're weighing the pros and cons of available options, you have to consider a few things:
Who is behind you?
The more aggressive players sit behind you, the more likely they will 3-bet, taking a betting lead and likely squeezing you out of the pot. In that scenario, you should lean more into the 3-bet-or-fold approach.
Who sits in the Big Blind and the Small Blind?
The weaker the players on the blinds are, the more often you want to play against them. If they are likely to fold against a 3-bet but will call a single raise happily, it's worth considering cold calling your hand to realize your edge against worse competition.
Generally speaking, if online poker is your regular environment, you should be more disciplined and cold call less, but in the live games, you can be more loose with your calls - as long as you are aware of why you are choosing to call over a 3-bet or a fold. If you want to see the same question from the other side of the table, we've covered playing from the Small Blind and defending the Big Blind against an open in separate articles.
In Texas Hold'em, coming up with cold calling ranges is relatively easy. After all, there are only 1,326 hand combinations (169 if we disregard suits), and narrowing this number to those that perform okay as cold calls is relatively simple.
When it comes to Omaha and its 270,725 combos (16,432 not considering the suits), things get more complicated. Such big numbers are virtually impossible to visualize or comprehend, so you have to think more in terms of categories rather than exact hands.
That's where PLO Genius comes in handy - its input will allow you to easily browse through the hands which prefer certain actions, allowing you to understand which traits are crucial. The free Starter plan covers 100bb preflop for heads-up and 6-max, in four-card and five-card PLO, with the trainer and no time limit, so you can check the cold-calling ranges for yourself.
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What changes preflop when stacks go from 100bb to 200bb in PLO: RFI, 3-betting in and out of position, with numbers from the Compare tool.
Same hand, different rake or table size: the Compare tool shows which hands change their preferred action and by how much EV, with a PLO50 vs PLO5000 example.
Same flop, three formats. What extra hole cards change in range composition and c-betting from PLO to PLO5 and PLO6, with solver numbers.