Poker Probability Flush Draw



I'm having a debate in a free poker forum about the odds of hitting your flush if you are 4 to a flush on the flop. I say you have 9 outs for around 36 Flush Draw Odds - 20% vs 36% - Beginning Poker Questions - Beginner Poker Forum. 3) A backdoor flush draw on the flop, needing runner-runner of the suit on the turn and river, will only get there 4% of the time Flush by river (from flush draw on flop if see both turn and river) 1.9 to 1 (35.0%) Flush on draw after missing turn 4.1 to 1 (19.6%) Flush by river on Backdoor Draw on flop 23 to 1 (4.2%) Starting Hand Example. The next two tables show the probabilities in 5-card stud with one wild card. The first table is for a partially wild card that can only be used to complete a straight, flush, straight flush, or royal flush, otherwise it must be used as an ace (same usage as in pai gow poker). The second table is for a fully wild card.

Here are some important probabilities in Omaha that returns in different situations. Knowledge about probabilities will help you to better evaluate situations in poker. You will , for example, know when you should call and when you shouldn't, and, vice versa, know when to fold and when the odds are in your favor.

Table 1. Playing situations
Drawing hands probabilitiesOddsPercent
Double wraparound straight draw (e.g. hand: 9-8-5-4, flop: 7-6-x)0.48-168%
Wraparound straight draw (e.g. hand: 8-5-4-x, flop: 7-6-x)0.67-160%
Straight flush draw0.84-154%
Hitting a full house with three pairs 3-124%
Hitting a full house with two pairs5.1-116.5%
Hitting quads with a set21.5-14.5%

Starting hands

Poker Probability Of Flush

There are many starting hands in Omaha (16.432 if not all suit combinations are counted), which makes it difficult to get an overview. Table 2 will hopefully increase that overview a bit.

Table 2. Starting hand versus average hand
SituationPercent
A-A-K-K double suited to win against average hand73%
A-A-K-K rainbow to win against average hand68%
A-A-7-7 double suited to win against average hand72%
A-A-7-7 rainbow to win against average hand67%
A-A-J-T double suited to win against average hand76%
A-A-J-T rainbow to win against average hand71%
J-T-9-8 double suited to win against average hand56%
J-T-9-8 rainbow to win against average hand49%
PokerPokerPoker odds flop flush draw

Comments

Draw

Exemple of a double suited hand: Q♥ A♥ 2♦ K♦
Exemple of a rainbow hand: Q♥ A♣ 2♠ K♦
The best Omaha hands are less bigger favorites against an average hand compared to Texas Hold'em.
In Texas Hold'em, common knowledge is that A-A is very big favorite against all other hands. In Omaha, A-A as a part of a hand is far from that strong. In general, an A-A-x-x hand versus a random four-card hand is a 70-30 favorite in average (if all the starting hands that are normally folded are excluded, the A-A-x-x hands will be even less favorites).

Made hands versus draws

A typical feature in an Omaha Hi game is a set against a hand with several drawing possibilities. The made hand will not be a very big favorite (sometimes it is an underdog), so the recommended strategy is to play fast and bet/raise the pot in these situations.

Table 3. Made hand versus drawing hand
SituationPercent
Top set against flush draw70%-30%
Middle set against flush draw70%-30%
Top set against flush draw + two pairs68%-32%
Set against wraparound straight draw52%-48%
Set against double wraparound straight draw53%-47%
No decimals are used. The numbers are only approximal.
Flush

Comments

Factors that can affect the odds are for example blocking cards.

Flush draws versus straight draws

In Omaha, hands with flush draws are often more likely to win than straight draws.

Table 4. Drawing hands
SituationPercent
Flush draw against wraparound60%-40%
Flush draw against double wraparound55%-45%
No decimals are used. The numbers are only approximal.

Comments

Poker Odds Flop Flush Draw

Since that many cards are in action, there are often combined possibilities, which makes it hard to give general percentages. A hand with a flush draw has mostly something else, like a pair or a straight draw as well.

Poker Probability Flush Drawing

Related article:Omaha strategy

The Players Guide To Video Poker Information

Poker Flush Draw

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One of the great features of video poker is the fact that the odds of each hand being dealt are the same on every machine (Games with 52 cards of course have different odds to those with 53). While the pays for the wins change the chances of getting the wins do not. Below we list the odds of many hands being dealt pat and the odds of winning on the draw for a 52 card game.

Initial Deal Odds

The table below shows the odds of getting any winning hand on the first five cards dealt on a game using 52 cards. Odds change if you are playing a game with an additional wild card such as Jokers Wild as there are 53 cards.

HandOddsHand Odds
Royal Flush 1 in 649740Straight : 1 in 255
Straight Flush : 1 in 72193Three of a Kind :1 in 47
Four of a Kind : 1 in 4165 Two Pairs :1 in 21
Full House : 1 in 694Pair J, Q, K or A 1 in 7.69
Flush : 1 in 509Any Pair 1 in 2.37

Odds On The Draw

As much as we would all like to see a pat hand dealt every time we hit the max bet button this is rarely the case. In reality less than 1% of hands played will result in you holding all five where over 60% of hands you will hold just two cards going into the draw. Knowing this lets look at some examples.
The table below shows the odds of getting a particular hand when holding one, two, three or four cards. Of course you have to be holding the right cards for the odds to be correct. For example for cards to a royal is made up of four suited cards in the 10 to Ace range. Four to a flush is four suited cards etc.
Royal Flush Draw
Hold 1 Hold 2 Hold 3 Hold 4
1 in 178,3651 in 16,215 1 in 1081 1 in 47
Straight Flush Draw *
Hold 1 Hold 2Hold 3 Hold 4
1 in 59,4551 in 8,1071 in 360 1 in 47
Four of a Kind Draw
Hold 1 Hold 2 Hold 3 Hold 4
1 in 3,4301 in 3601 in 23.24n/a
Full House Draw
Hold 1 Hold 2 Hold 3 Hold 4
1 in 619 1 in 98 1 in 16 n/a
Flush Draw
Hold 1 Hold 2 Hold 3 Hold 4
1 in 3611 in 991 in 26 1 in 5
* The straight flush section has several variations that can change the odds that are displayed. These are primarily and inside draw or an outside draw. For example if you have 5h, 6h, 7h, 8h there are two ways to make the straight flush - either a 4h or a 9h will do it. However if you have an inside draw you have for example 2d, 3d, 5d, 6d. In this case only one card can make the hand (4d).
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