PLO5 Preflop Strategy: Opening, 3-Betting and Position

Because PLO5 equities run so close, preflop mistakes cost less than in Hold’em — but the hands you choose shape every decision that follows. The goal isn’t to find hands that are big favourites; it’s to enter pots with hands that make the nuts, in positions where you can use them. This lesson gives you a practical framework for opening, 3-betting and playing the blinds.

Key takeaways

• Play fewer hands out of position and more in position; position is worth even more in PLO5.
• Prefer hands with nut potential over hands that merely look connected.
• Raise rather than limp when first in; pot-sized or slightly smaller opens are standard.
• 3-bet aces with good side cards and top rundowns, mostly in position.
• Multiway pots reward nut-heavy hands and punish marginal ones.

Opening by position

In PLO5, many hands look playable, but the gap between hands that make the nuts and hands that make second-best is large. A practical guide for 6-max, 100bb, when it’s folded to you:

Seat	Approach
UTG / Hijack	Strong hands only: supported aces, high double-suited rundowns, broadway hands with a suited ace
Cutoff	Add good middle rundowns and single-suited broadway hands
Button	Open a wide range of hands with at least three to four working cards
Small blind	Raise or fold; be selective — you’ll be out of position

Use the working-cards test from PLO5 Starting Hands: four or five working cards are strong opens anywhere; three working cards are mostly for late position.

Sizes

• Pot-sized opens (3.5bb) are common in PLO5.
• Many online players open slightly smaller from the button.
• Live, add one big blind for each limper.

Limping is usually a mistake for the same reasons as in PLO4: it gives up the initiative and invites everyone in.

3-betting

Good 3-bet hands in PLO5:

1. Aces with good side cards — A-A-J-T-9 ds, A-A-K-Q-J — to build the pot and lower the SPR.
2. Top rundowns with a suited ace, especially in position.
3. Isolation 3-bets against loose openers when you’re in position.

Out of position, 3-bet or fold more than you call. Calling out of position with a medium hand in a big pot is where PLO5 players lose the most.

Playing the blinds

• Small blind: the hardest seat. Fold a lot, raise good hands, and avoid flatting.
• Big blind: you close the action and get a good price. Defend with hands that make the nuts — but be ready to check-fold often when the flop misses your nut potential.

Multiway pots

PLO5 pots go multiway more often than any other game. In multiway pots:

• Nut potential is everything. Second-best hands lose big pots.
• Aces lose value — they’re one pair unless they improve.
• High rundowns and suited aces gain value — they make the top straights and flushes.

A disciplined fold

PLO5 · 6-max · 100bb

Hero (UTG)K9753

▶ Replay

1. Preflop

   Pot 1.5bb

   • Hero is first to act
   • The hand has a king, some low cards, one weak suit and gaps everywhere — at most two working cards
   • Hero folds

◀ BackNext ▶Auto-play

Quick check

Which hand is the better open from early position in PLO5?

K♠9♦7♥5♣3♠A♠A♥J♠T♥9♦7♠7♦7♥2♣3♦6♣5♦4♥3♠2♣

Check answer

Aces with connected, double-suited side cards have huge nut potential. The others make weak or second-best hands.

Quick check

Why do multiway pots make nut potential even more important in PLO5?

More players means more chipsWith more opponents, someone is much more likely to hold a strong hand, so second-best hands lose big potsMultiway pots are smallerYou can't bluff multiway

Check answer

Every extra player adds ten two-card combinations. The best hand at showdown gets stronger.

You’ve finished PLO5 Stage 1

Take the Stage 1 quiz to earn your badge. Stage 2 moves to post-flop play: PLO5 Flop Play.