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Omaha Poker Rules: How Pot-Limit Omaha Differs from Hold’em

Omaha poker rules in practice: the two-plus-three hand rule with examples, pot-limit raise maths, Hi-Lo splits and how PLO differs from Hold'em.

By the Gambling Hero editorial team · October 25, 2026 Industry

Omaha poker deals each player four hole cards instead of two, and every final hand must use exactly two hole cards plus exactly three of the five board cards. In Pot-Limit Omaha, no bet or raise may exceed the current size of the pot.

In short

Omaha uses the same blinds, board and betting rounds as Texas Hold’em. The differences are in the cards: four hole cards per player, and a final hand made of exactly two hole cards and exactly three board cards. Playing the board is impossible. Most Omaha games are pot-limit, so the largest raise equals the pot after your call. Omaha Hi-Lo splits the pot between the highest hand and the lowest qualifying hand of eight or lower.

How is a hand of Omaha dealt and played?

An Omaha hand is dealt and played like Texas Hold’em: a button, two blinds, then a three-card flop, a turn and a river, with four betting rounds. The one change at the deal is that each Omaha player receives four hole cards.

  1. The small and big blinds are posted to the left of the button.
  2. Each player receives four hole cards face down.
  3. Pre-flop betting starts with the player left of the big blind.
  4. The flop (three board cards), turn (one card) and river (one card) each bring a betting round.
  5. At showdown, a player must show the hole cards to win. The two unused hole cards and two unused board cards are ignored (Pagat.com).

Pagat.com gives a table size of two to ten players. The full blinds-and-betting sequence is explained in How to Play Poker: Rules, Betting Rounds and Hand Values.

What does the “exactly two, exactly three” rule mean?

The “exactly two, exactly three” rule means an Omaha hand always combines two of the player’s four hole cards with three of the five board cards. Robert’s Rules of Poker states that a hand must use “precisely two holecards with three boardcards”.

Each player has 6 possible pairs of hole cards (4 choose 2) and 10 possible sets of three board cards (5 choose 3). That gives 60 five-card combinations per player, against 21 in Texas Hold’em.

The 2+3 check prevents the most common misreads:

  1. Pick two hole cards. Never one, never three.
  2. Pick three board cards. Never four, never five.
  3. Rank the five cards with the normal poker hand rankings.
Board Hole cards Tempting misread Actual Omaha hand
A♥ 9♥ 7♥ 4♥ 2♣ K♥ Q♠ J♠ 10♦ Flush with the K♥ Ace high (A-K-Q-9-7): only one heart in hand
8♣ 8♦ 8♥ 8♠ K♦ A♠ Q♦ 7♣ 5♥ Four eights Three eights with A-Q: only three board cards play
Q♠ J♦ 10♣ 4♥ 2♠ K♠ 9♦ 9♥ 3♣ Pair of nines King-high straight (K-9 with Q-J-10)
9♠ 9♥ 5♦ 5♣ A♣ K♦ K♣ 3♥ 2♦ Nines and fives from the board Kings and nines, ace kicker (K-K with 9-9-A)

Analysis of the four hands by our editorial team, using the 2+3 check.

How is the maximum bet calculated in Pot-Limit Omaha?

In Pot-Limit Omaha, the maximum raise equals the pot after the raiser’s call is counted. Robert’s Rules of Poker gives the example: with $100 in the pot and a $50 bet, a player may call $50 and raise $200.

The calculation works in three parts:

  1. Start with everything in the pot, including bets made in this round.
  2. Add the amount you need to call.
  3. That total is the largest raise you may add on top of your call.
Situation Pot before you act Call Maximum raise Your total bet
Pre-flop, blinds $1/$2, first to act $3 $2 $5 $7
Flop, $40 pot, no bet yet $40 $0 $40 (bet) $40
Flop, $40 pot, opponent bets $20 $60 $20 $80 $100
Robert’s Rules example $150 $50 $200 $250

Calculations by our editorial team. A bet larger than the maximum is reduced to the pot size, and the surplus is returned (Robert’s Rules, section 14). Pot-limit pots grow geometrically. Heads-up, a $7 raise and call leave $15 in the pot (the small blind folded). Pot-sized bets called on the flop, turn and river grow it to $45, $135 and $405.

How does Pot-Limit Omaha differ from Texas Hold’em?

Pot-Limit Omaha differs from Texas Hold’em in three ways: four hole cards instead of two, a strict two-plus-three hand rule, and pot-limit instead of the no-limit betting common in Hold’em. Those changes make strong hands far more frequent in Omaha.

Feature Texas Hold’em Pot-Limit Omaha
Hole cards 2 4
Possible starting hands 1,326 270,725
Five-card combinations per player 21 60
Chance of being dealt at least one pair 5.9% 32.4%
Playing the board Allowed Not possible
Usual betting structure No-limit Pot-limit

Probabilities calculated by our editorial team from a 52-card deck. Example for the pair figure: an Omaha hand has no pair when its four cards come from four different ranks, which happens in 715 × 256 = 183,040 of 270,725 hands (67.6%). The remaining 32.4% hold at least one pair.

Editor’s insight

The numbers in the table explain why Hold’em habits fail in Omaha. With 60 combinations per player instead of 21, each opponent has nearly three times as many ways to connect with the board. A hand that is often strong enough in Hold’em, such as top pair, faces many more straights, flushes and full houses in Omaha. A practical habit follows from the maths: in multi-way Omaha pots, judge a hand by how it can improve and what it loses to, not only by what it is now.

How does Omaha Hi-Lo split the pot?

Omaha Hi-Lo, also called Omaha eight-or-better, splits the pot between the highest hand and the lowest qualifying hand. A low hand qualifies only with five different ranks of 8 or lower. If no player qualifies for low, the high hand wins the whole pot.

  • Aces count low, and straights and flushes do not spoil a low (Pagat.com).
  • A player may use different pairs of hole cards for the high hand and the low hand (Robert’s Rules, section 7). Each half still needs exactly two hole cards and three board cards.
  • The lowest possible hand is 5-4-3-2-A.
  • Pagat.com notes that Omaha Hi-Lo is commonly played fixed limit, while Omaha High is often pot-limit.

Other variants deal more hole cards. Five-card and six-card Omaha, sometimes called “Big O”, follow the same two-plus-three rule (Pagat.com). Variants offered online are listed on our poker games page.

Important

In the United States, real-money online poker, Omaha included, is legal only in states that license it; there is no federal licence. Check your state on our US legal overview and confirm the operator’s licence before depositing. Omaha pots grow quickly under pot-limit betting, so fix a session budget in advance and use the tools on our responsible gambling page if play stops being fun.

Our take

We see Pot-Limit Omaha as the natural second game after Hold’em, because the rules change very little: two more hole cards and one strict hand rule. The adjustment is in hand values. With 60 combinations per player, the strongest hand at showdown is usually stronger than in Hold’em, so players moving over from Hold’em should expect to fold hands they would normally play. Run the 2+3 check on every board and learn the pot-limit calculation before you play for money. Both mistakes, misreading a hand and miscounting a pot, are avoidable.

Key takeaways

  • Omaha deals 4 hole cards; a hand uses exactly 2 of them plus exactly 3 board cards.
  • Each Omaha player has 60 five-card combinations, against 21 in Hold’em.
  • A pot-limit raise facing a $50 bet into $100 can be up to $200 on top of the call.
  • 32.4% of Omaha starting hands contain at least one pair, against 5.9% in Hold’em.
  • Omaha Hi-Lo awards half the pot to the lowest hand of 8 or lower, if one exists.

FAQ

Can you use three hole cards in Omaha?

No. An Omaha hand must use exactly two hole cards and exactly three board cards. Three or four hole cards are never allowed.

Can you play the board in Omaha?

No. Because two hole cards must play, a player can never use all five board cards, unlike Texas Hold’em.

What does PLO stand for?

PLO stands for Pot-Limit Omaha, the Omaha version in which the maximum raise equals the pot after your call.

Is four of a suit on the board a flush in Omaha?

Only if you hold two cards of that suit. With one suited card in hand, you cannot make a flush, because only three board cards may play.

Sources

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