Omaha Poker Rules
Omaha is the second most popular poker variant after Texas Hold’em, and to many players the more exciting one. You receive four hole cards instead of two, but you must use exactly two of them and exactly three community cards to make your five-card hand. That single rule reshapes every decision at the table and is where almost every mistake begins.
The objective
Omaha is a community-card game, and the goal is the same as any poker game: win the pot, either by making the best five-card hand at showdown or by betting so that everyone else folds. What changes is how a hand is built. With four hole cards there are six possible two-card pairings in your hand, so reading your own best hand takes a moment of care that Hold’em never demands.
The critical rule: exactly two hole cards
You must use exactly two of your four hole cards and exactly three of the five community cards — never one, never three.
Example: the board is A♣ K♣ 7♣ 4♠ 2♦ and you hold Q♣ J♦ 9♠ 8♠. Three clubs are on the board, but you have only one club in hand, so you cannot make a flush — a flush needs two clubs from your hand plus three from the board. You would instead play, say, Q-J with the board’s A-K-7 for ace-high. Reading the board as if it were Hold’em is the classic Omaha trap.
How a hand plays out
The betting structure is identical to Texas Hold’em. A hand moves through four streets, each with its own betting round:
- Pre-flop: Blinds are posted and each player receives four hole cards. Betting opens to the left of the big blind.
- Flop: Three community cards are dealt face up, followed by a betting round.
- Turn: A fourth community card is dealt, followed by another betting round.
- River: A fifth and final community card is dealt, followed by the last betting round and the showdown.
Pot-limit betting
Omaha is almost always played Pot-Limit, which is where the name PLO comes from. The most you may bet or raise is the current size of the pot: your maximum raise is the pot after your call is counted in. Pots grow fast because so many hands continue, but no single bet can be the huge no-limit overbet, which keeps the action proportional and the draws priced fairly.
Hand rankings
Omaha uses standard poker hand rankings, strongest at the top. Only your best five cards count, formed from exactly two hole cards and three community cards.
| Hand | Example |
|---|---|
| Straight flush | T♥ 9♥ 8♥ 7♥ 6♥ |
| Four of a kind | K♠ K♥ K♦ K♣ 4♠ |
| Full house | Q♠ Q♥ Q♦ 8♣ 8♠ |
| Flush | A♣ J♣ 9♣ 6♣ 3♣ |
| Straight | 9♦ 8♠ 7♥ 6♣ 5♦ |
| Three of a kind | 7♠ 7♥ 7♦ K♣ 2♠ |
| Two pair | J♠ J♦ 5♣ 5♥ 9♠ |
| One pair | T♦ T♣ A♠ 8♥ 4♦ |
| High card | A♠ Q♦ 9♣ 6♥ 2♠ |
Variants on SPN
PLO4 (4-Card Omaha)
Standard Omaha: four hole cards, five community cards, always exactly two plus three. Most commonly played as Pot-Limit and the version most people mean by “Omaha”.
PLO5 (5-Card Omaha / Big O)
Five hole cards instead of four. The extra card produces far more strong starting hands and bigger draws, but the two-plus-three rule is unchanged — you still play exactly two of your five.
PLO6 (6-Card Omaha)
Six hole cards, and fifteen possible two-card pairings in every hand. Made hands are so common that the near-nuts is often needed to win at showdown, and marginal hands rarely hold up.
A worked example
The board comes 9♥ 8♥ 5♣ 2♦ K♠. You hold A♥ Q♥ J♦ 7♣. An opponent holds T♦ 6♦ 6♠ 4♣.
You might reach for a flush, but you hold two hearts and only two hearts are on the board — a flush needs three hearts from the board, so there is none here. Your best hand is A-Q from hand with K-9-8 from the board for ace-high. Not much.
Your opponent plays T-6 from hand with 9-8-5 from the board? No — that is not a straight. Their best is the pair of sixes from hand plus board cards, a modest one pair. On this board a made hand as small as a pair can win, which is exactly why the two-card rule matters.
The lesson is not the specific winner but the reading: in Omaha you count two from your hand and three from the board every single time, and hands that look huge in Hold’em terms often are not.
On SPN
All Omaha variants use the SPN tick-fee model, so there is no rake taken from the pot. The two-card rule is enforced automatically — the software only offers valid two-plus-three combinations, and the showdown always awards the pot to the best legal hand. Dealing is provably fair and the tables are bot-free.
Frequently asked questions
What is the difference between Omaha and Texas Hold’em?
You are dealt four hole cards instead of two, and you must use exactly two of them plus exactly three community cards to make your hand. In Texas Hold’em you may use any combination, including zero hole cards. The four-card deal and the strict two-card rule make Omaha a game of much bigger hands and closer showdowns.
Do I have to use two hole cards in Omaha?
Yes. Exactly two of your four hole cards and exactly three of the five community cards make your five-card hand, no more and no fewer. This is the single rule new players get wrong most often. If four hearts are on the board and you hold one heart, you do not have a flush, because you can only play three of the board cards.
What does pot-limit mean in Pot-Limit Omaha?
The largest bet you can make is the current size of the pot. A raise can be up to the total pot after your call is included, which grows the pot quickly on later streets but caps any single bet below the all-in overbets seen in no-limit games.
What is the nut hand in Omaha?
The nuts is the best possible hand given the board. Omaha rewards the nuts far more than Hold’em: because every player holds four cards, strong-but-not-best hands are beaten constantly, so the ace-high flush and the top straight win pots that a second-best hand quietly loses.
Is Omaha usually no-limit or pot-limit?
Omaha is most commonly spread as Pot-Limit (PLO). The four-card deal makes strong hands so frequent that a no-limit format would put stacks in on nearly every big draw; the pot-limit cap keeps the betting proportional to the pot and is the standard used almost everywhere.