Poker Outs

2021年3月11日
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*Poker Outs And Odds
*Poker Outs Chart
What Are Outs?
We have already seen how the relative strength of a poker hand can increase or decrease as flop, turn and river is dealt. If you have a hand that is probably losing, but has the potential to improve to a winner, (ie, a drawing hand) you need to decide whether it is worth continuing with it through the various stages of the pot.
In short, you need to identify the cards that will improve your hand to win at showdown – known as “outs”.
Poker Drawing Odds Chart This handy chart gives the odds of hitting your outs from the flop to turn / turn to river / flop to river: Outs% Odds% Odds% Odds 20 42.6% 1.35-1 43.5% 1.30-1 67.5% 0.48-1 19. Basic Odds and Outs If you ever wanted to know some of the odds and probabilities of Texas hold’em poker, from the chances of flopping a flush (0.8%) or set (12%) to the odds of an overcard coming.
We’ll run through a few common examples.
Example – Flush Draw
*You have Q♥3♥. The flop is 7♥9♣K♥.
*There are 13 cards of each suit in the deck. You hold two hearts and another two are on the board, so four of the thirteen hearts have therefore already been dealt
*This means that there are still nine hearts that can possibly come (A♥J♥10♥9♥8♥6♥5♥4♥2♥) and therefore nine cards that can improve your hand to a (probable) winner.
*You have nine outs.
Example – Straight Draw
“Open-ended”
*You have J♠10♠. The flop is 6♣Q♥K♦
*Any ace or nine will complete your straight. This is known as an “open-ended” straight draw.
*There are four aces A♣A♦A♥A♠ and four nines 9♣9♦9♥9♠ in the deck.
*You have eight outs.
“Gutshot”
*You have J♥9♠. The flop is K♣Q♥7♦.
*Only a ten would in the middle would make your straight here. This is referred to as a “gutshot” straight draw.
*There are four unseen 10♠10♣10♥10♦.
*You have four outs.
Example – Straight Draw and Overcards
*You have A♥K♥. The flop is J♠10♦2♣.
*Any of the four queens (Q♣Q♦Q♥Q♠) will give you a straight.
*If your opponent has a middle pocket pair (eg. 9♥9♣), pairing your ace or king will give you a higher pair.
*Subtracting your ace and king, you have three aces (A♣A♦A♠) and three kings (K♣K♦K♠) left to make a better pair, plus the four queens to make a straight Q♣Q♦Q♥Qs]
*You have ten outs.
Now we can start to consider your opponent’s hands.
Example – Set Against a Flush Draw
*You hold 7♦7♥. The board shows 2♠7♠J♠. You have a set – which is generally strong – but you can already be behind to an opponent holding two spades.
*You can still improve to beat a flush. To do this you need to “pair the board” with another jack or two to make a full house, or even the final seven to make four-of-a-kind!
*The cards that could pair the board are therefore J♣J♦J♥7♣2♣2♦2♥.
*You have seven outs.
*If the turn does not improve your hand, you still acquire three more outs with this card (eg. the turn is a four, you then have three more fours to hit and improve to ten outs)
Example – Straight Draw AND a Flush Draw
*You hold 6♥7♥
*The flop is 4♥5♣J♥.
*You have both an open-ended straight draw and a flush draw.
*As you will recall from the earlier example, this gives you nine cards to make the flush (A♥K♥Q♥10♥9♥8♥5♥3♥2♥) but your the eight cards you’d need to make a straight are reduced to six (8♣8♦8♠3♣3♦3♠) because the 8♥ and 3♥ have already been counted.
*You have fifteen outs.
Why is this important?Poker Outs And Odds
Learning to calculate your outs gives you a much firmer grasp on how poker hands can play out, and swing from one way to another as the cards are revealed. You’ll find later on in your learning that you will need to be able to count your outs to apply this information in some basic (and some complicated) calculations.
“The Rule of Two and Four”
Here’s a fast method which players use to calculate their odds of winning a hand to an approximate percentage and informing their decision in a hand; it’s called “The Rule of Two and Four”.Poker Outs Chart
After the flop has been dealt, count your outs and multiply by FOUR to determine the percentage of making your hand on the turn or the river.
After the turn has been dealt, count your outs and multiply by TWO to determine the percentage of making your hand on the river. This also works for determines your chances of making your hand on the turn when acting on the flop, because there is similarly one card to come.
This method isn’t 100% accurate, but it’ll get you near enough to quickly calculate your perceived percentage of winning.
Test your knowledge with our short quiz belowPoker Outs to OddsTo find your chance of improving a drawing hand based on the number of outs, use the following table:OutsTurn OddsRiver OddsTurn+River Odds1 Out45.9-to-1 (2.13%)45.1-to-1 (2.17%)22.3-to-1 (4.26%)2 Outs22.5-to-1 (4.26%)22.0-to-1 (4.35%)10.9-to-1 (8.42%)3 Outs14.7-to-1 (6.38%)14.3-to-1 (6.52%)7.0-to-1 (12.49)%4 Outs10.8-to-1 (8.51%)10.5-to-1 (8.70%)5.1-to-1 (16.47%)5 Outs8.4-to-1 (10.64%)8.2-to-1 (10.87%)3.9-to-1 (20.35%)6 Outs6.8-to-1 (12.77%)6.7-to-1 (13.04%)3.2-to-1 (24.14%)7 Outs5.7-to-1 (14.89%)5.6-to-1 (15.22%)2.6-to-1 (27.84%)8 Outs4.9-to-1 (17.02%)4.8-to-1 (17.39%)2.2-to-1 (31.45%)9 Outs4.2-to-1 (19.15%)4.1-to-1 (19.57%)1.9-to-1 (34.97%)10 Outs3.7-to-1 (21.28%)3.6-to-1 (21.74%)1.6-to-1 (38.39%)11 Outs3.3-to-1 (23.40%)3.2-to-1 (23.91%)1.4-to-1 (41.72%)12 Outs2.9-to-1 (25.53%)2.8-to-1 (26.09%)1.2-to-1 (44.96%)13 Outs2.6-to-1 (27.66%)2.5-to-1 (28.26%)1.1-to-1 (48.10%)14 Outs2.4-to-1 (29.79%)2.3-to-1 (30.43%)0.95-to-1 (51.16%)15 Outs2.1-to-1 (31.91%)2.1-to-1 (32.61%)0.85-to-1 (54.12%)16 Outs1.9-to-1 (34.04%)1.9-to-1 (34.78%)0.75-to-1 (56.98%)17 Outs1.8-to-1 (36.17%)1.7-to-1 (36.96%)0.67-to-1 (59.76%)18 Outs1.6-to-1 (38.30%)1.6-to-1 (39.13%)0.60-to-1 (62.44%)19 Outs1.5-to-1 (40.43%)1.4-to-1 (41.30%)0.54-to-1 (65.03%)20 Outs1.3-to-1 (42.55%)1.3-to-1 (43.48%)0.48-to-1 (67.53%)21 Outs1.2-to-1 (44.68%)1.2-to-1 (45.65%)0.43-to-1 (69.94%)22 Outs1.1-to-1 (46.81%)1.1-to-1 (47.83%)0.38-to-1 (72.25%)To calculate the percentage by hand, use any of the following approximations:AccuracyTurnRiverTurn+RiverCommentsExcellentOuts times 2.13%Outs times 2.17%*Turn odds plus River odds minus Turn odds times River oddsMore accurate than you’ll ever needVery GoodOuts times 2-1/8%Outs times 2-1/6%**Outs times 4%, minus (Outs - 8) if 9 or more OutsAs accurate as you’ll ever needGoodOuts times 2%, plus 1% if 5+ Outs, plus 2% if 13+ OutsSame as Turn**Outs times 4%, minus (Outs - 8) if 9 or more OutsThe easiest reasonable approximationBadOuts times 2% plus 1%Same as TurnOuts times 4%Not good if low or high numbers of outs
* For example, using the Good approximation, if you have 9 Outs, then you have a 19% chance on the turn, a 19% chance on the river, and a 38% minus 19% of 19% (close to 20% of 20%, which is 4%) equals a 34% chance on the turn and river combined.
** From David Solomon, mentioned in Harrington on Hold ’em: Volume 2.View THETA Poker Pro in App StoreReturn to THETA Poker Pro App
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