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Full House and Flush Paytable Math

Full house and flush payouts look small compared with jackpots, but they strongly shape the real return of many video poker games.

Full House and Flush Paytable Math
Point Value
House Edge Depends on paytable
Difficulty Medium
Skill Ceiling Medium

Full-house and flush payouts are among the most important quality signals in Jacks or Better. They are not the biggest numbers on the screen, but they occur often enough that a one-unit cut can remove a meaningful amount of long-run return.

That is why players describe common Jacks or Better schedules with labels such as 9/6 and 8/5. The first number is the full-house payout per coin; the second is the flush payout per coin. Those two lines can tell you more about the game’s value than the cabinet art or the size of the word “ROYAL.”

What 9/6 and 8/5 actually mean

A 9/6 Jacks or Better paytable pays:

  • 9 units for a full house;
  • 6 units for a flush.

An 8/5 version pays:

  • 8 units for a full house;
  • 5 units for a flush.

If every other line were identical, the 8/5 game would still return less because two recurring medium-value hands have been cut.

The naming convention is compact, but it is not a complete strategy guide. A player still needs to know the rest of the paytable and use a strategy appropriate to that exact schedule. The video poker paytables guide and video poker RTP guide explain those two layers separately.

Why the middle of the paytable matters so much

A royal flush is extremely valuable but very rare. Full houses and flushes pay much less, yet they appear far more often in optimal play.

The contribution of any final hand to total return can be expressed as:

Return Contribution = Final-Hand Frequency × Payout

That equation explains why a small payout change can matter.

If a result happens often enough, removing one unit from every occurrence removes that unit repeatedly across thousands of hands. A rare jackpot can dominate attention while the middle of the table quietly determines a large part of ordinary return.

A direct five-credit example

Suppose two machines use the same denomination and the player wagers five credits.

A full house returns:

9/6 game: 9 × 5 = 45 credits
8/5 game: 8 × 5 = 40 credits
Difference: 5 credits

A flush returns:

9/6 game: 6 × 5 = 30 credits
8/5 game: 5 × 5 = 25 credits
Difference: 5 credits

Each individual difference looks small beside a 4,000-credit royal. The problem is repetition. Full houses and flushes occur often enough that those missing five-credit payments accumulate.

Why a paytable change can also change strategy

The math is slightly more subtle than simply multiplying one fixed hand frequency by a lower payout.

When the paytable changes, some close hold decisions can change too. A flush draw is worth less when flushes pay less. A full-house opportunity is worth less when the full-house line is cut. That can move the boundary between competing holds.

So the exact return difference between two paytables should be calculated under the best strategy for each paytable, not by pretending the optimal hand frequencies are frozen.

This is why an analyzer or game-specific strategy table is better than using one generic chart everywhere.

A hand that shows the payout difference immediately

Consider a dealt full house:

9♣ 9♦ 9♥ K♠ K♦

There is no strategy debate. The hand is already complete.

On a five-credit 9/6 game, the full house returns 45 credits. On a five-credit 8/5 game, it returns 40.

The player sees the difference directly.

Now consider a hand with four cards to a flush. The lower flush payout may reduce the value of that draw relative to another available hold. The effect is less visually obvious, but it is still part of the paytable’s strategy cost.

The headline royal can stay identical while the game gets much worse

One reason weaker Jacks or Better schedules are easy to miss is that the top of the paytable may look familiar.

A casino can leave the royal flush at the standard maximum-coin jackpot and keep the same game name while reducing full-house and flush payouts. To a casual glance, the machine still looks like “normal Jacks or Better.”

That is why experienced players scan the middle lines before sitting down.

The comparison pages 9/6 Jacks or Better and 8/5 Jacks or Better show how the same base game can be offered with materially different long-run return.

Approximate return benchmarks show the size of the difference

Under commonly cited full-pay assumptions and optimal strategy, classic 9/6 Jacks or Better is roughly a 99.54% return game. A common 8/5 schedule is roughly 97.3%.

Those percentages are not promises about a session. They are long-run mathematical returns under specific rules and correct strategy. But they show why the two missing units in the middle of the paytable are not cosmetic.

A difference of roughly two percentage points becomes large when multiplied by substantial coin-in.

Convert paytable quality into expected dollars

Suppose a player generates $10,000 in coin-in.

A simplified expected-loss comparison is:

Expected Loss = Coin-In × House Edge
House Edge = 1 - RTP

At 99.54% RTP:

House Edge ≈ 0.46%
Expected Loss on $10,000 coin-in ≈ $46

At 97.30% RTP:

House Edge ≈ 2.70%
Expected Loss on $10,000 coin-in ≈ $270

The exact figures depend on the exact paytable and strategy, but the scale is the important lesson. A few missing credits on recurring hands can translate into a much larger long-run cost.

You can model your own assumptions with the house edge calculator.

Why bar-top and multi-denomination machines deserve extra attention

A familiar cabinet does not guarantee one fixed paytable.

Bar-top machines, multi-game terminals, and multi-denomination cabinets may offer different Jacks or Better schedules depending on denomination or game selection. A player can move from quarters to dollars and see a different table—or the same table. There is no universal rule that a denomination change automatically improves return.

The only safe habit is to inspect the displayed paytable before starting.

The full-house line and flush line do different jobs

It is tempting to treat the two numbers as one combined quality score, but each affects a different set of outcomes.

Full-house payout

The full-house line directly changes the value of completed full houses and influences some drawing comparisons where full-house outcomes are possible.

Flush payout

The flush line changes the value of completed flushes and can matter in close decisions involving four-card flush draws versus competing straight, pair, or high-card holds.

Because both lines are cut in 8/5, the player loses value from two separate parts of the outcome distribution.

Why “the royal is the same” is not a defense of a weak game

A player might say:

“Both machines pay 4,000 on the royal, so they are basically the same.”

That ignores how return is built.

The royal contributes a large amount when it occurs, but most sessions contain no royal at all. During those sessions, the middle and lower paytable lines are doing most of the settling.

Two games can have the same royal payout and very different overall return because the medium-frequency hands are priced differently.

The page video poker paytables compared is built around this exact problem.

Paytable quality and variance are separate questions

A worse paytable usually lowers return, but that does not mean every weaker game necessarily has a simple, predictable relationship with short-term volatility.

RTP answers: how much does the game return on average over a very large number of hands under the stated strategy?

Variance answers: how widely can actual results swing around that average?

A player can choose a strong paytable and still have a severe losing session. A weak paytable can produce a lucky short-term win. The paytable changes expectation, not the guarantee of the next session.

Five paytable-reading errors that cost players

Looking only at the royal

The largest payout is not the only important payout.

Assuming the game title defines the return

“Jacks or Better” describes a game family. The actual return depends on the displayed schedule.

Treating 9/6 and 8/5 as a tiny difference

The change affects hands that occur much more often than the royal.

Using the wrong strategy chart

A chart built for 9/6 may not be perfect for a different schedule.

Comparing credits without comparing denomination

A five-credit payout difference has different dollar value at 25¢, $1, and $5 denominations.

A compact machine-selection routine

Before playing Jacks or Better:

  1. Check the royal flush payout at the intended number of credits.
  2. Check the full-house line.
  3. Check the flush line.
  4. Scan the rest of the table for additional cuts.
  5. Confirm the denomination and total five-credit wager.
  6. Use a strategy chart for that exact schedule.

That routine takes less than a minute and prevents one of the most common video-poker mistakes: playing a familiar name without checking the actual price.

The math most players overlook is printed in plain sight

The casino does not need to conceal a weak paytable. The full information can be displayed on the screen while the player focuses on the jackpot.

The practical advantage comes from knowing which numbers to read.

In Jacks or Better, the full-house and flush lines are two of the fastest quality checks available. A 9/6 label signals a classic strong schedule. An 8/5 label signals that both recurring medium hands have been reduced.

For deeper comparison, read why 9/6 Jacks or Better matters and why 8/5 Jacks or Better costs more. Then compare video poker paytables and video poker RTP before choosing a machine.

Curated internal reading

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