Straight Flush vs Four of a Kind: Which Wins?
A straight flush beats four of a kind in standard poker. Here's the rarity behind the rule, a worked cooler example, and how each hand breaks ties.
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A straight flush beats four of a kind in standard poker. The straight flush sits at #2 on the ten-hand ladder, one spot above four of a kind at #3, so quads lose this matchup every time. It’s a monster-versus-monster clash you may see once in a lifetime — but when it happens, the rule is absolute.
The rule, stated plainly
- Straight flush = five cards in sequence, all the same suit, e.g.
9♥ 8♥ 7♥ 6♥ 5♥. - Four of a kind = all four cards of one rank plus a kicker, e.g.
Q♣ Q♦ Q♥ Q♠ 4♦(“quads”).
The straight flush wins. If you hold a straight flush, the only thing that can beat you is a higher straight flush — and the ceiling of that category is the royal flush, the ace-high version.
Why the straight flush ranks higher
Poker orders hands by rarity — the rarer the hand, the higher it ranks. Count the exact combinations in a 52-card deck:
| Hand | Ways to make it | Rank |
|---|---|---|
| Straight flush (incl. royal) | 40 | #2 |
| Four of a kind | 624 | #3 |
Four of a kind is more than fifteen times as common as a straight flush. Because it’s easier to make, it ranks lower — even though four matched cards feel like the strongest thing imaginable.
A worked cooler example
This is the stuff of poker legend. The board reads 7♥ 6♥ 5♥ 5♠ 5♦.
- Player A holds
5♣ 9♣→ best five:5♠ 5♥ 5♦ 5♣+9♣= four of a kind, fives. An enormous hand. - Player B holds
9♥ 8♥→ best five:9♥ 8♥ 7♥ 6♥ 5♥= nine-high straight flush.
Player A has quads and would beat almost anything — but Player B’s straight flush is #2 and quads are #3, so Player B wins. This is the rare “quads lose” cooler that players tell stories about for years.
How each hand breaks ties
- Straight flush vs. straight flush: the higher top card wins. A king-high straight flush beats a nine-high one. Two straight flushes of identical rank (only possible with shared community cards) split the pot.
- Four of a kind vs. four of a kind: the higher quads win — four aces beat four kings. Sharing the same quads is only possible when the board shows all four, in which case the fifth-card kicker decides it.
Just how rare are these hands?
Numbers make the rarity concrete. Out of 2,598,960 possible five-card hands, here’s how the top of the ladder breaks down:
| Hand | Combinations | Roughly 1 in |
|---|---|---|
| Royal flush | 4 | 649,740 |
| Straight flush (non-royal) | 36 | 72,193 |
| Four of a kind | 624 | 4,165 |
You’ll be dealt four of a kind about once every four thousand hands — uncommon, but you’ll see it. A straight flush is more than fifteen times rarer, and a royal flush is a genuine lifetime highlight. That gap in frequency is exactly what puts the straight flush above quads.
Why quads still play like the nuts
Even though a straight flush technically beats it, four of a kind is effectively unbeatable in practice, and you should almost always get maximum value with it. A straight flush requires a very specific board — cards tightly connected and single-suited — so on the vast majority of boards, no straight flush is even possible. The mistake to avoid is the opposite: slow-playing quads so cautiously that you win a tiny pot. Bet them; the straight-flush ghost appears only on rare, obvious textures.
Where both hands sit at the top
The very top of the ladder runs: royal flush → straight flush → four of a kind → full house. So a straight flush beats four of a kind, and the royal flush — an ace-high straight flush — beats everything, including a lower straight flush. For the definitive top-to-bottom picture, see the highest hand in poker.
Bottom line
A straight flush beats four of a kind because it’s the rarer hand — one of only forty possible straight flushes versus 624 sets of quads. It’s a near-mythical showdown, but the rule never bends: quads fall only to a straight flush or the royal flush above it. Study the whole ladder at the hand rankings hub, then chase the dream at the Texas Hold’em tables.
Frequently asked
Does a straight flush beat four of a kind?
Yes. A straight flush beats four of a kind in every standard poker game. The straight flush ranks second on the ten-hand ladder and four of a kind ranks third, so the straight flush wins.
Why does a straight flush beat four of a kind?
Because it is rarer. There are 40 straight flushes (including royals) versus 624 four-of-a-kind hands in a 52-card deck, so the harder hand ranks higher.
What beats a straight flush?
Only a higher straight flush, and the highest straight flush of all is the royal flush (ace-high). Nothing else beats a straight flush in standard poker.
How often does straight flush vs four of a kind happen?
Almost never — it is one of the rarest coolers in poker. Both hands are extraordinarily uncommon, so seeing them clash at the same showdown is a once-in-a-lifetime moment for most players.