Pot-Limit Omaha Rules: Four Cards, Use Exactly Two

Pot-Limit Omaha (PLO) is the second most popular poker game in the world, and the favourite of many players who find Hold’em too slow. If you know Hold’em, you already know most of the rules: the same positions, blinds, betting rounds and five community cards. Two differences change everything: you get four hole cards, and you must use exactly two of them — no more, no fewer — together with exactly three from the board.

Key takeaways

• Each player gets four hole cards; the board is five community cards, as in Hold'em.
• Your hand must use exactly two hole cards and exactly three board cards.
• One card of a suit in your hand never makes a flush — you need two.
• You can't 'play the board'; a four-card straight or flush on the board needs two of your cards to complete.
• PLO is played pot-limit: the biggest bet is the size of the pot.

How a hand plays out

The flow is identical to Hold’em:

1. Blinds: small blind and big blind post, as in Hold’em.
2. Deal: each player gets four cards face down.
3. Preflop betting starts with the player to the left of the big blind.
4. Flop (three cards), turn (one), river (one), with a betting round after each.
5. Showdown: the best five-card hand wins, made from two hole cards + three board cards.

The betting structure is almost always pot-limit. You’ll learn how to calculate the pot in Pot-Limit Betting.

The golden rule: exactly two

This is the rule every new Omaha player gets wrong at least once. Let’s look at the classic traps.

Trap 1: one-card flush

AK72

Q95

Flop

3

Turn

2

River

Four hearts are on the board and you hold the ace of hearts. In Hold’em that’s the nut flush. In Omaha you have no flush at all — you’d need two hearts in your hand. Your best hand is a pair of twos (2♠ from your hand plus 2♣ on the board).

Trap 2: board straight

AKQJ

1098

Flop

2

Turn

3

River

T-9-8 is on the board. You might see “A-K-Q-J-T” — but that uses four of your cards. Using exactly two, your best straight is Q-J with T-9-8: a queen-high straight. (And no flush, because you hold only one spade.)

Trap 3: the board decides which full house is best

AAQJ

777

Flop

K

Turn

2

River

With three sevens on the board, your A-A makes sevens full of aces (7-7-7-A-A). It looks like a monster, but it isn’t the nuts:

• K-K uses the K♣ on the board to make kings full of sevens (K-K-K-7-7), which beats you.
• The last seven (7♣) plus any other hole card makes four of a kind.

In Hold’em, pocket aces on this board would feel safe. In Omaha, always ask what the other players’ two cards could do with the board.

Trap 4: one card of a pair

78910

772

Flop

K

Turn

Q

River

You hold one seven. Using 7♥ plus another hole card with 7♠ 7♦ and one more board card, you make three sevens — trips, not a full house.

Why PLO plays so differently

With four hole cards, each player has six two-card combinations to work with. That means:

• Hands are much stronger on average. A pair of aces is often not enough to win at showdown; two pair and sets are common, and straights and flushes appear far more often.
• Draws are huge. A straight draw can have up to 20 outs. You’ll meet these “wraps” in Drawing in PLO.
• Equities run close. Even the best starting hand is only about a 70/30 favourite over a random hand — see PLO Hand Values.
• The nuts matter more. When several players have strong hands, the second-best hand often loses a big pot.

Common variations

• PLO5 (Five-Card Omaha): five hole cards, still use exactly two — covered in the PLO5 course.
• PLO Hi-Lo (Omaha 8): the pot is split between the best high and best qualifying low hand.
• Big O: five-card Omaha Hi-Lo.

This course focuses on PLO high, the most popular version.

Quick check

You hold A♥ K♣ 7♦ 2♠. The board is Q♥ 9♥ 5♥ 3♥ 2♣. What is your best hand?

Ace-high flushA pair of twosKing-highA straight

Check answer

You need two hearts in your hand for a flush. Using 2♠ and another hole card with the board, your best hand is a pair of twos.

Quick check

How many hole cards must you use in Omaha?

Any number from 0 to 4Exactly twoAt least oneExactly three

Check answer

Exactly two hole cards and exactly three board cards — always.

Test your hand reading in the PLO nuts trainer: four Omaha hands, one board — pick the winner using exactly two hole cards.

Next up: how much you can bet and raise — Pot-Limit Betting.