PLO5 Equity: Why the Nuts Matter Even More

In PLO5, your opponents hold ten two-card combinations each. That changes the equity picture in two ways. Before the flop, hands run even closer together than in PLO4. After the flop, whoever holds the nuts — or the best draw to it — has a huge advantage, and hands that are “nearly the nuts” become expensive. This lesson uses calculated examples to build your PLO5 instincts.

Key takeaways

• Preflop edges are small: even the best hands are only around 64–65% against a random hand.
• After the flop, the extra card helps both sides: sets gain outs, draws gain outs.
• In our example, top set was about a 54% favourite against a nut flush draw with a wrap.
• Non-nut flush draws are in terrible shape against nut draws: about 23% in our example.
• Plan to win big pots only with the nuts or strong draws to the nuts.

Preflop: small edges

From our simulations against a random PLO5 hand, the best hands are around 64–65%, strong rundowns around 55–58% and weak hands around 30–40%. Compare that with Hold’em, where A-A is about 85% against a random hand.

Small preflop edges mean:

• Position and post-flop skill decide more of your results.
• Getting all-in preflop is rarely a big edge, except with premium aces against weak ranges.
• Multiway pots are common and change hand values a lot.

After the flop: both sides have more outs

The fifth card helps every hand — including made hands. On a 9♥ 8♥ 2♣ flop:

Hero	Villain	Equity
9♠9♦K♣Q♠J♦ (top set)	A♥T♥7♦6♣5♠ (nut flush draw + wrap)	~54% / 46%
9♠9♦K♣Q♠3♦ (top set)	8♠2♠A♥T♥4♣ (bottom two pair + nut flush draw)	~66% / 34%

Compare the first line with PLO4 (lesson Drawing in PLO), where a similar draw was a 54% favourite over top set. Here the set holder’s extra cards (like the J♦, which blocks and adds straight outs) swing it back. The lesson: in PLO5, don’t assume a big draw is ahead — count what your opponent’s extra cards can do too.

Non-nut draws

On 9♥ 8♠ 2♥, a king-high flush draw (K♥Q♥ in a five-card hand) against a nut flush draw (A♥J♥): the king-high draw has only about 23%. It wins mainly when it makes a straight or pairs up and the board cooperates.

In PLO5, the chance that someone holds the ace of your suit is higher than in PLO4 — they have more cards. So:

• Nut flush draws: play them aggressively, especially with extra outs.
• King-high flush draws: proceed with caution in big pots.
• Low flush draws: usually not worth a big bet.

Why second-best is so expensive

When two strong hands collide, one of them is usually drawing thin. Because PLO5 players make strong hands so often, these collisions happen all the time: set over set, higher straight over lower straight, nut flush over second-nut flush. The player who habitually plays hands that can only make second-best hands will lose the biggest pots of the night.

Quick check

Roughly how much equity does a king-high flush draw have against a nut flush draw in our PLO5 example?

About 23%About 45%About 50%About 70%

Check answer

About 23%. Drawing to a non-nut flush against the nut flush draw is very expensive.

Quick check

Why can a big draw be worse against a set in PLO5 than in PLO4?

Draws have fewer outs in PLO5The set holder also has extra cards, which can add outs and block the draw's outsSets can't be beaten in PLO5Pot-limit betting is different

Check answer

Every hand gains from the fifth card. Count your opponent's extra outs as well as your own.

Every example above can be re-run in the Omaha equity calculator, which supports five-card hands. Try swapping one card in the set or the draw and watch how much the equity moves.

Next up: putting this into a preflop plan — PLO5 Preflop Strategy.