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A flush draw is a hand one card short of a flush, holding four cards of the same suit; with nine outs it is one of the strongest common draws.
By Anja Wiedenhöft · September 10, 2026 · 5 min read
A flush draw is a hand with four cards of the same suit that needs one more of that suit to complete a flush. It has nine outs, the remaining suited cards. That gives about a 19% chance to hit on the next card and around 35% from flop to river, making the flush draw one of the strongest and most common draws in poker.
A flush draw is a hand that holds four cards of the same suit and needs just one more of that suit to complete a flush. It is not yet a made hand, but it is one of the most valuable drawing hands in poker because so many cards can complete it. Recognising a flush draw and knowing its odds is a basic building block of sound decision-making in games such as Texas Hold’em.
For example, imagine you hold the ace and seven of clubs, and the flop comes king of clubs, nine of clubs and two of spades. You now have four clubs: the two in your hand and two on the board. Any further club completes your flush, and because you hold the ace, it would be the highest possible flush — the nut flush. That is a flush draw, and a very strong one.
Outs are the unseen cards that complete your hand. A suit has 13 cards in total. When you have a flush draw you can see four of that suit — some in your hand, some on the board — which leaves nine unseen. Any one of those nine completes your flush, so a flush draw has nine outs. Nine is a large number of outs, and it is what makes the flush draw so much stronger than an inside straight draw, which has only four.
The “rule of four and two” gives a quick estimate. Multiply your nine outs by two for the chance on the next single card, and by four for the chance across both the turn and river when you are on the flop. That produces roughly 18% and 36%, which is very close to the exact figures shown below.
The table shows why players value a flush draw so highly. At about 35% to complete by the river, it hits more than one time in three, which is over four times as often as a gutshot completes on a single card. That frequency is what allows a flush draw to justify continuing in many more situations than a weaker draw would.
A flush draw’s nine outs give it more ways to improve than either main straight draw. An open-ended straight draw has eight outs, so a flush draw is marginally stronger, and it is more than twice as strong as a four-out gutshot. When you hold both a flush draw and a straight draw at once — a combo draw — you may have twelve or more outs, which can make you a favourite to end up with the best hand by the river. Counting outs accurately is the only way to know where your particular draw sits.
A flush draw is strong, but strong is not the same as certain, and it completes only about a third of the time by the river. Two factors guide good decisions. The first is the price: because the draw completes so often, you can profitably call a wider range of bet sizes than with a weak draw, but a very large bet can still make chasing a losing proposition on average. The second is your potential winnings if the flush arrives — the implied odds. A flush is a hand opponents often pay off, so the extra chips you can win when it completes add real value to the draw.
The nut flush draw, where your suited card is the ace, is especially valuable because if it completes, no other flush can beat it. A lower flush draw carries a small risk: even when you hit, an opponent could hold a higher flush. Weighing that possibility is part of judging how firmly to play the draw and how much to invest.
Working out your outs and odds is about making better decisions over time, not chasing guarantees. Every call with a draw is a bet that pays off only when the draw hits, so you want the price and the potential winnings to be in your favour on average. A flush draw with nine outs will still miss roughly two times in three by the river, and no strategy changes that underlying randomness. What good players do is ensure that, across many hands, the times the flush completes more than pay for the times it does not. That expected-value mindset — comparing your chance of improving with the cost of continuing — is the heart of playing draws well.
Not every flush possibility is a full flush draw. A backdoor, or runner-runner, flush draw is when you hold three cards of a suit on the flop and would need both the turn and the river to be that suit to complete the flush. Because you need two specific cards in a row, a backdoor flush draw is much weaker — it completes only around 4% of the time — and it is treated as a small bonus to a hand rather than a reason to continue on its own. It is worth recognising, though, because backdoor equity can tip a marginal decision and gives a hand extra ways to improve on later streets.
A flush draw is four cards of one suit needing a fifth, with nine outs, about a 19% chance to hit on the next card and roughly 35% from flop to river. It is one of the strongest common draws, ahead of both the open-ended straight draw and the gutshot. Play it with an eye on the price and your implied odds, favour the nut flush draw when you have it, and remember that even a strong draw is a probability, never a promise.
A flush draw is a hand that has four cards of the same suit and needs one more of that suit to make a flush. It is an incomplete hand, but a strong drawing hand because it has nine cards that can complete it.
A flush draw has nine outs. A suit contains 13 cards; once you can see four of them in your hand and on the board, nine of that suit remain unseen and any one completes the flush.
With nine outs you have about a 19% chance to complete on the next card, roughly 4-to-1 against. From the flop through the river the combined chance rises to about 35%, close to 2-to-1 against.
A flush draw's nine outs beat a gutshot's four and edge an open-ended straight draw's eight. That makes the flush draw one of the strongest common draws, though the exact value depends on the board and price.
No. A flush draw is strong but completes only about a third of the time by the river. Whether to continue depends on the price of the call and how much you could win if it hits.