Straight Flush in Cribbage: The Truth

Cribbage has no “straight flush” hand — the term simply doesn’t exist in the game. Unlike poker, cribbage never scores five suited cards in sequence as one special combination. Instead it counts runs and flushes as two completely separate things. So if you hold five suited cards that also form a run, you score the run and the flush independently, and you add them together. There is no bonus for combining them.

Why the confusion happens

Players coming from poker expect a suited run to be one premium hand, because in poker a straight plus a flush together makes the second-best hand in the game. Cribbage doesn’t rank hands against each other at all — it scores them by adding up small combinations. Runs and flushes are just two of those combinations, and they stack rather than merge.

How cribbage scores a flush

Flush scoring depends on where the cards are:

Situation	Requirement	Points
Flush in hand	All 4 hand cards same suit	4
Flush in hand + starter	All 4 hand cards + starter same suit	5
Flush in the crib	All 4 crib cards and the starter same suit	5

Two rules trip people up. First, three suited cards plus a matching starter is not a flush — you need all four hand cards suited first. Second, in the crib a four-card flush earns nothing; only the full five-card flush counts.

How cribbage scores a run

A run is three or more cards in consecutive rank, in any order, using the four hand cards plus the starter. Each card in the run scores one point:

• Run of 3 = 3 points
• Run of 4 = 4 points
• Run of 5 = 5 points

Suit is irrelevant to a run — 4♠ 5♥ 6♣ scores the same three-point run as three suited cards would.

A worked example

Your hand plus the starter is 3♠ 4♠ 5♠ 6♠ with a starter of 7♠.

Score it in separate passes:

1. Run: 3-4-5-6-7 is five cards in sequence = 5 points for the run.
2. Flush: all five cards are spades = 5 points for the flush.
3. Fifteens: 3+4+5+... check any subsets summing to 15 — here 4+5+6 = 15 and 3+5+7 = 15, so 4 points (2 per fifteen).

Total so far: 5 + 5 + 4 = 14 points — but crucially, the 5 and 5 are tallied as a run and a flush, never announced as “a straight flush.” Cribbage has no such call.

How this differs from poker and other games

In standard poker, a straight flush is a single hand ranked just below the royal flush. In three-card variants the sequence-plus-suit hand is likewise a top ranking — see how it works in does a flush beat a straight in 3 card brag. Cribbage stands apart: it is a scoring game, not a hand-ranking game, so it dismantles what poker treats as one hand into two independent point sources.

The one place a run and flush interact

Even though they score separately, runs and flushes share the same cards, and that occasionally changes your best discard. Because a hand flush needs all four cards suited, keeping a suited run is worth more than the same run in mixed suits — the suited version quietly adds four or five points. When choosing what to send to the crib, protecting a four-card flush can matter as much as protecting a run.

Fastest way to score a suited run

Work through the fixed checklist and nothing slips past you:

1. Fifteens — every subset summing to 15 scores 2.
2. Pairs — each pair scores 2.
3. Runs — each card in a run of three or more scores 1.
4. Flush — 4 for a four-card hand flush, 5 with the starter.
5. Nobs — the jack of the starter’s suit scores 1.

Because a “straight flush” isn’t on this list, you never look for it — you catch the run at step three and the flush at step four, then add them up.

Quick summary

• Cribbage has no straight flush as a named hand.
• Runs and flushes score separately and both count.
• Flush: 4 points (hand), 5 with the starter; the crib needs all five suited.
• Run: 1 point per card, three or more in sequence, any suit.

Bottom line

If you’re looking for a “straight flush in cribbage,” the honest answer is that the game doesn’t have one — but a suited run rewards you twice, once for the run and once for the flush. Count them separately and you won’t miss points. Compare how poker treats sequences in what is a straight in poker and flushes in poker flush rules, and explore more card games at the other variants hub or the hand rankings hub.