What Is a Straight Flush in Poker? Odds and Strategy

A straight flush is five consecutive cards of the same suit, ranking second only to a royal flush in standard poker hand rankings. At 72,192-to-1 odds against in a five-card deal, it is one of the rarest hands you will ever see at the table.

I have studied and played poker professionally for over two decades, and outside of a royal flush, a straight flush is the one hand where your decision is almost never whether to continue: it is entirely about how to extract the maximum chips from opponents who cannot beat you.

A straight flush consists of five cards of the same suit in consecutive order, and it is a very rare and equally as powerful poker hand.

Poker HandExplanationExample
#1. Royal FlushFive highest cards of the same suitAcKcQcJcTc
#2. Straight FlushAny five consecutive cards of the same suitJcTc9c8c7c
#3. Four of a KindFour cards of the same rank4c4s4d4hJc
#4. Full HouseThree cards of one rank + two cards of another rank3c3s3d7h7c
#5. FlushFive cards of the same suitKdJd7d5d3d
#6. StraightFive consecutive cards in different suits6s5s4d3d2h
#7. Three of a KindThree cards of the same rank7c7h7d2hJ2
#8. Two PairsTwo cards of one rank + two cards of another rankQcQs2c2hJs
#9. One PairTwo cards of the same rank8h8sAcKs5d
#10. High CardAny other handAcQdJs4h3c

Examples of a Straight Flush Poker Hand

A straight flush can be made with any five consecutive suited cards. In my experience teaching hand reading, players sometimes underestimate how many straight flush combinations exist in a deck. There are 40 total straight flushes in a standard 52-card deck (excluding royal flushes), which is why this hand ranks above all others except the royal flush despite its rarity relative to most other hand categories.

This hand Is a combination of two hands – a straight and a flush, all in one. Some examples of a straight flush are:

  • 5s 6s 7s 8s 9s – a Nine-high straight flush in spades
  • 7h 8h 9h Th Jh – a Ten-high straight flush in hearts
  • 4c 5c 6c 7c 8c – an Eight-high straight flush in clubs
  • 2d 3d 4d 5d 5d – a Six-high straight flush in diamonds

In rare instances where two or more players at the table end up showing down a straight flush, the winner is the player with the highest-ranking card in their combination. For example, 4d 5d 6d 7d 8d beats 3d 4d 5d 6d 7d.

In stud and draw poker variations, it is possible for two (or more) players to have the same flush but in a different suit. In this case, they’ll split the pot. Suits have no bearing on determining the winner; i.e., a straight flush in clubs is equally as strong as a straight flush in spades.

What Beats Straight Flush in Poker?

Only a royal flush beats a straight flush in standard Texas Hold’em. In practice, this means that when you make a straight flush, you should assume you have the best hand at the table in all but the most unlikely circumstances. I tell students: do not worry about whether you might be beaten. Focus entirely on the size of the pot you are building.

As mentioned, a straight flush is an extremely powerful hand. It beats almost all other hands you’ll come across, including high card, one pair, two pair, three of a kind, straight, flush, full house, and four of a kind.

A straight flush is the second-strongest holding in poker hand rankings that loses only to a Royal Flush. A Royal Flush is, in fact, the highest possible straight flush (made up of an ace, king, queen, jack, and ten of the same suit), but as the strongest poker hand in existence, it has a special place in hand rankings.

Of course, a straight flush can beat another straight flush. When two players hold a straight flush, the one holding a combination with the highest-ranking card wins.

Does a Straight Flush Beat Four of a Kind?

Yes. A straight flush beats four of a kind in standard poker. Four of a kind (also called quads) is a strong hand, but it ranks below a straight flush in every standard poker hand ranking system. This is a common point of confusion, partly because four of a kind can look visually stronger in a hand with multiple board pairs.

A straight flush also beats a full house, a flush, a straight, three of a kind, two pair, one pair, and a high card hand. Only a royal flush ranks above it.

Straight Flush Probabilities

Understanding straight flush probabilities helps calibrate how you think about hand frequencies and opponent ranges. In my coaching sessions, I use this type of frequency data to help students understand when giving an opponent credit for a specific rare hand is warranted, and when it is simply not realistic based on board texture and action.

A straight flush is a very rare hand that you may not come across over numerous sessions. The odds of being dealt a straight flush from a deck of 52 cards are just 0.00139%.

In Texas Hold’em, these are your odds of making a straight flush on different streets when starting with two suited connectors:

StreetOdds
Flop0.0046%
From flop to the turn (with an open-ended draw)4.44%
From turn to the river (with an open-ended draw)4.54%

Here are a few more interesting facts about a straight flush poker hand:

  • The odds of flopping a straight flush with T8s specifically are 0.02%
  • With A2s, the odds of flopping a straight flush are 0.01%
  • The odds of improving your straight flush open-ended draw from flop to river are 8.42%

How to Play a Straight Flush in Poker?

The primary mistake I see students make when they make a straight flush is playing it too fast on an obvious board. If the board shows four suited cards in sequence and you hold the fifth, your opponents already know a straight flush is possible.

In that scenario, slowing down and allowing opponents to bet into you is often more profitable than leading out and watching everyone fold. The specific texture of the board determines everything about how to play this hand.

A straight flush is an extremely strong hand that you almost never have to worry about or think much about strategy. When you hold this hand, your main line of thinking should be how to extract the maximum value from your opponent.

In many cases, a straight flush will be the absolute nuts, i.e., an unbeatable hand, allowing you to play it tricky and allow your opponents to catch up. By letting them improve their holdings, you’ll give them more rope and entice them to put more money into the pot.

The only time when you might want to be careful with a straight flush is when you make this hand using four community cards and you have the dummy end. For example, if the board reads 5d 6d 7d 8d, and you have a 4d. Although you have a straight flush here, it is still susceptible to someone holding an 8d, so it’s perfectly fine to exercise some caution in these spots.

How to Play a Straight Flush Draw

A straight flush draw is one of the most powerful drawing hands in poker, and it is worth understanding separately from the made hand.

When you hold a straight flush draw, you typically also have either a flush draw, a straight draw, or both simultaneously. This means your equity against most opponent ranges is significantly higher than a one-dimensional draw.

  • Open-ended straight flush draw. If you hold two connected suited cards and four of your five needed cards are already on the board, you have an open-ended straight flush draw. Completing to a flush gives you additional equity even if the straight flush does not come in.
  • Gutshot straight flush draw. A gutshot straight flush draw means you need one specific card to complete. This is weaker than an open-ended draw but still carries meaningful equity as a combined flush and straight draw.

In my coaching work, the most common error with straight flush draws is overvaluing them. The draw is powerful, but it is still just a draw. Play the odds: call if the pot odds justify it, re-evaluate on each street, and do not bluff off your stack chasing a hand that may not materialize. If you complete the draw, play it as described above. If you do not, adjust your decision based on your equity as a flush or straight alone.

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