Four to a Straight

“Four to a straight” is not one strategy category. The shape of the draw matters. A hand such as 5-6-7-8 can be completed at either end, while 5-6-8-9 needs a single missing rank in the middle. In an ordinary 52-card, one-card draw, those patterns have very different raw completion chances: 8 out of 47 for the open-ended draw versus 4 out of 47 for the inside draw.

Even that comparison is only the beginning. High cards, suits, made pairs, royal possibilities, and the paytable can all make another hold more valuable. The useful skill is not spotting four nearly consecutive ranks; it is identifying exactly what kind of straight draw you have and what you would sacrifice to keep it.

Learn the shapes before memorizing the hierarchy

A player who cannot distinguish the draw patterns will struggle to use a strategy chart correctly.

The table shows why “I need one card” is too vague. Both the open-ended and inside draw need one card, but the open-ended version has twice as many straight-completing cards.

The suited example also shows why counting only straight outs can understate the hold. A 4♠ or 9♠ completes a straight flush, while other spades may complete a flush depending on the exact cards held. Overlapping hand categories must be valued correctly rather than double-counted casually.

Work through the weak and strong versions side by side

Take:

5♣ 6♦ 7♥ 8♠ K♣

Holding 5-6-7-8 leaves eight straight-completing cards: four 4s and four 9s. The raw chance of finishing the straight in one draw is about 17.02%.

Now change the middle of the pattern:

5♣ 6♦ 8♥ 9♠ K♣

The hold 5-6-8-9 needs a 7. Four sevens remain, so the raw straight-completion chance is about 8.51%.

Same number of held cards. Same number of draw positions. Roughly half the straight hit rate.

The comparison becomes more interesting with:

10♣ J♦ Q♥ K♠ 3♣

This is also open-ended. A 9 or ace completes a straight, but the held cards are all high ranks. Even on non-straight draws, pairing a jack, queen, king, or ace can matter in Jacks or Better-style games. The exact expected value therefore differs from a low 5-6-7-8 draw even though both have eight straight outs.

Do not compare draws by out count alone

Counting outs is useful, but video poker pays final hands rather than “outs.” Two holds with the same number of helpful cards can have different average returns because the payouts behind those cards differ.

A four-card flush draw, for example, has nine suited cards that complete the flush. An open-ended straight draw has eight straight cards. It would be tempting to conclude that the flush draw is always stronger because 9 is greater than 8. That shortcut fails when the ranks create high-pair backup, straight-flush possibilities, or a competing made hand.

The correct framework is:

Open-ended straight completion probability = 8 / 47 = 17.02%
Inside straight completion probability = 4 / 47 = 8.51%

Expected value of a hold = average return from every possible draw after that hold

The completion probabilities describe one outcome category. Expected value compares the full futures created by each hold.

Paying pairs are where straight-chasing intuition often breaks

Suppose the hand contains a paying pair and four cards that can be arranged into a straight draw. The eye is naturally pulled toward the sequence because it looks like a construction project that is almost finished.

But a paying pair has immediate value and three new draw positions when kept by itself. Those replacement cards can create two pair, trips, a full house, or four of a kind. Breaking the pair to chase a modest straight can reduce average return.

This is one reason beginner advice such as “keep four to a straight” is dangerous without a hierarchy around it. Strategy charts rank the straight pattern against pairs, flush draws, royal draws, and high-card combinations. The Wizard of Odds 9/6 Jacks or Better strategy provides an example of that ordered approach for one exact schedule.

Inside straights deserve extra suspicion

Inside draws are attractive because the visual gap is obvious. The player can point to the missing rank and imagine filling it. Mathematically, the gap usually offers only four cards out of 47 in a one-card draw.

That does not make every inside straight wrong. High-card inside patterns can carry value from pairs and other final hands, and variant-specific paytables can alter rankings. But a low inside straight with no useful high-card or suited structure is exactly the kind of hand that players overkeep because “only one number is missing.”

A practical rule is to treat inside straights as a category that requires confirmation, not as an automatic hold.

Suited straight draws create a different layer of value

A hand such as 5♠ 6♠ 7♠ 8♠ K♦ is not merely an open-ended straight draw. The four spades also form a flush draw, and 4♠ or 9♠ completes a straight flush.

This overlap is why hand labels should be descriptive rather than prescriptive. Calling the hand “four to a straight” is true but incomplete. Calling it “four to a flush” is also true but incomplete. A good analyzer evaluates the complete set of final outcomes generated by the hold.

For borderline situations, use the video poker analyzer instead of combining separate probability rules by hand and accidentally double-counting the same draw card.

How strategy mistakes change the game you are actually playing

A paytable may advertise a theoretical return under a specified optimal strategy. A player who repeatedly chases weak inside straights or breaks paying pairs for ordinary straight draws will not achieve that return over the long run.

From the casino’s perspective, this distinction matters. The machine can be configured exactly as approved, the RNG can operate correctly, and the player can still create a lower personal return through decisions. The effective cost of the game is therefore partly a function of strategy accuracy.

Technical standards such as GLI-11 Gaming Devices and Nevada’s gaming-device technical standards deal with game integrity and control. They do not guarantee that the player chooses the highest-value hold.

A quick recognition drill

Before looking at a chart, classify these mentally:

4-5-6-7 — open-ended; a 3 or 8 completes the straight.

4-5-7-8 — inside; only a 6 completes it.

10-J-Q-K — high open-ended; a 9 or ace completes the straight, with high-pair backup on some other draws.

5♣-6♣-7♣-8♣ — open-ended plus flush/straight-flush structure; do not reduce it to one simple out count.

The goal of the drill is not to memorize a final strategy decision without a paytable. It is to recognize what information the chart is asking you to identify.

Errors to remove from your straight-draw play

• Treating open-ended and inside draws as equal because both need one card.
• Keeping a low inside straight over a stronger high-card or pair hold without checking the chart.
• Breaking a paying pair because the sequence looks visually close.
• Ignoring suit information in a straight-flush candidate.
• Using an out count as if it were the same thing as expected value.
• Importing Jacks or Better hierarchy into Deuces Wild or a bonus variant.
• Deciding that a missed straight makes the next one more likely.

A correct hold can miss. A bad hold can hit. The quality of the decision is measured before the replacement card appears.

Put straight draws beside the other one-card decisions

Continue with four to a flush and four to a royal to compare three very different “one card away” situations. Then use expected value of a hold and how to read a video poker strategy chart to place those patterns inside a real decision hierarchy.

For broader game cost, review video poker odds and video poker house edge. The straight probability is easy to calculate; knowing when not to chase it is the more valuable skill.