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Poker Probability Texas Holdem Wikipedia

4/1/2022

Introduction

In poker, the probability of many events can be determined by direct calculation. This article discusses computing probabilities for many commonly occurring events in the game of Texas hold 'em and provides some probabilities and odds for specific situations.

In Texas Hold 'Em a hand is said to be dominated if another player has a similar, and better, hand. To be more specific, a dominated hand is said to rely on three or fewer outs (cards) to beat the hand dominating it, not counting difficult multiple-card draws. There are four types of domination, as follows.

  1. A pair is dominated by a higher pair. For example J-J is dominated by Q-Q. Only two cards help the J-J, the other two jacks.
  2. A non-pair is dominated by a pair of either card. For example, Q-5 is dominated by Q-Q or 5-5. In the case of 5-5, three cards only will help the Q-5, the other three queens.
  3. A non-pair is dominated by a pair greater than the lower card. For example, Q-5 is dominated by 8-8. Only three cards will help the Q-5, the other three queens.
  4. A non-pair is dominated by another non-pair if there if there is a shared card, and the rank of the opponent's non-shared card is greater the dominated non-shared card. For example Q-5 is dominated by K-5 or Q-7. In the former case (K-5 over Q-5) only three cards can help Q-5, the other three queens.

That said, the following tables present the probability of every two-card hand being dominated, according to the total number of players.

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  • 11/9/2015 Poker probability (Texas hold 'em) ­ Wikipedia, the free encyclopedia (Texashold%27em) 1/16 Poker probability (Texas hold 'em) From Wikipedia, the free encyclopedia In poker, the probability of many events can be determined by direct calculation. This article discusses computing probabilities for many commonly occurring events in the game of Texas hold 'em and provides some.
Poker Probability Texas Holdem Wikipedia

Probability of Domination — PairsExpand

Cards2 Players3 Players4 Players5 Players6 Players7 Players8 Players9 Players10 Players
2,20.05880.11420.16590.21500.26090.30440.34490.38350.4195
3,30.05400.10490.15320.19830.24190.28260.32120.35760.3922
4,40.04890.09560.14000.18200.22200.26020.29660.33130.3640
5,50.04410.08620.12650.16530.20210.23760.27100.30310.3345
6,60.03920.07670.11330.14810.18160.21360.24480.27450.3036
7,70.03440.06750.09960.13060.16050.18950.21770.24470.2709
8,80.02950.05810.08580.11290.13910.16480.18940.21380.2369
9,90.02460.04850.07200.09470.11730.13910.16040.18130.2017
T,T0.01960.03890.05780.07650.09470.11260.13000.14780.1649
J,J0.01470.02930.04350.05770.07190.08560.09920.11320.1262
Q,Q0.00980.01950.02920.03890.04830.05790.06740.07660.0861
K,K0.00490.00980.01470.01960.02450.02940.03410.03910.0439
A,A0.00000.00000.00000.00000.00000.00000.00000.00000.0000

Probability of Domination — Non-PairsExpand

Cards2 Players3 Players4 Players5 Players6 Players7 Players8 Players9 Players10 Players
3,20.27420.47850.62890.73890.81870.87530.91560.94380.9629
4,20.26450.46340.61240.72270.80360.86260.90490.93500.9562
4,30.24960.44170.58770.69860.78150.84330.88880.92200.9459
5,20.25460.44870.59560.70600.78810.84890.89340.92550.9486
5,30.23990.42630.57010.68050.76450.82790.87540.91080.9367
5,40.22530.40360.54390.65390.73930.80500.85560.89370.9227
6,20.24500.43380.57860.68850.77180.83440.88090.91520.9403
6,30.23020.41100.55250.66200.74700.81180.86140.89860.9266
6,40.21540.38810.52540.63440.71990.78690.83940.87960.9105
6,50.20080.36470.49750.60470.69110.75990.81460.85810.8919
7,20.23500.41860.56110.67090.75500.81910.86760.90420.9311
7,30.22040.39550.53400.64300.72850.79480.84610.88540.9155
7,40.20570.37240.50650.61380.70000.76810.82200.86420.8971
7,50.19100.34840.47760.58330.66930.73880.79510.84020.8761
7,60.17630.32440.44780.55100.63650.70710.76510.81280.8514
8,20.22550.40340.54340.65260.73750.80320.85360.89230.9213
8,30.21050.38000.51570.62370.70950.77710.83000.87140.9034
8,40.19590.35630.48700.59320.67910.74810.80370.84780.8828
8,50.18120.33230.45740.56140.64670.71680.77430.82080.8586
8,60.16660.30780.42720.52770.61220.68290.74160.79040.8311
8,70.15180.28290.39520.49220.57500.64530.70560.75630.7992
9,20.21560.38780.52500.63380.71940.78620.83880.87930.9104
9,30.20100.36430.49680.60390.68950.75830.81300.85640.8904
9,40.18620.34020.46740.57200.65770.72740.78430.83000.8668
9,50.17140.31570.43710.53880.62340.69370.75230.80030.8398
9,60.15690.29110.40610.50360.58680.65730.71670.76670.8088
9,70.14190.26580.37340.46690.54760.61740.67760.72890.7730
9,80.12740.24030.34000.42820.50610.57420.63420.68670.7320
T,20.20570.37220.50660.61430.70050.76880.82290.86540.8987
T,30.19100.34850.47720.58310.66910.73870.79500.84020.8762
T,40.17640.32400.44740.55010.63520.70550.76380.81110.8499
T,50.16170.29950.41630.51530.59910.66960.72860.77840.8196
T,60.14700.27420.38430.47900.56060.63050.69040.74130.7847
T,70.13230.24870.35120.44110.51960.58810.64780.69960.7448
T,80.11760.22270.31690.40080.47540.54180.60090.65320.6993
T,90.10300.19650.28170.35860.42860.49230.54920.60100.6473
J,20.19600.35660.48770.59440.68080.75050.80630.85080.8862
J,30.18130.33240.45780.56170.64760.71800.77570.82270.8610
J,40.16650.30780.42710.52750.61200.68280.74190.79110.8317
J,50.15190.28270.39540.49160.57410.64410.70420.75490.7976
J,60.13710.25730.36210.45370.53360.60260.66250.71430.7590
J,70.12230.23140.32840.41420.49010.55720.61640.66880.7145
J,80.10770.20500.29310.37250.44420.50830.56580.61740.6638
J,90.09310.17850.25710.32890.39480.45530.51000.56010.6061
J,T0.07830.15150.21990.28370.34270.39790.44930.49670.5409
Q,20.18620.34060.46850.57390.66040.73120.78860.83520.8727
Q,30.17130.31610.43790.54020.62550.69680.75570.80440.8445
Q,40.15680.29100.40620.50450.58800.65900.71890.76960.8119
Q,50.14220.26580.37360.46710.54820.61800.67830.72990.7744
Q,60.12730.24000.34000.42800.50550.57340.63330.68570.7312
Q,70.11260.21390.30480.38680.46000.52540.58350.63570.6818
Q,80.09790.18750.26910.34350.41130.47300.52890.58000.6257
Q,90.08330.16060.23210.29830.36000.41660.46890.51730.5619
Q,T0.06870.13320.19400.25160.30520.35570.40320.44800.4894
Q,J0.05400.10550.15470.20200.24740.29020.33130.37070.4082
K,20.17630.32460.44910.55320.63950.71110.77020.81850.8579
K,30.16160.29980.41780.51780.60270.67400.73430.78480.8269
K,40.14690.27450.38510.48080.56330.63430.69480.74660.7908
K,50.13220.24910.35170.44220.52110.59040.65090.70370.7494
K,60.11750.22300.31710.40130.47630.54310.60250.65500.7016
K,70.10290.19640.28140.35860.42850.49180.54900.60070.6473
K,80.08810.16970.24470.31390.37770.43670.49050.53970.5853
K,90.07340.14230.20690.26750.32380.37650.42590.47200.5148
K,T0.05880.11460.16780.21830.26650.31200.35550.39610.4350
K,J0.04410.08660.12770.16710.20580.24260.27800.31250.3452
K,Q0.02940.05820.08650.11410.14140.16790.19400.21950.2444
A,20.16650.30860.42940.53160.61770.69010.75050.80090.8425
A,30.15170.28350.39700.49490.57910.65090.71200.76410.8080
A,40.13720.25780.36360.45650.53760.60820.66950.72270.7684
A,50.12240.23180.32940.41640.49340.56180.62230.67540.7225
A,60.10770.20540.29400.37410.44620.51150.57020.62280.6701
A,70.09310.17870.25750.33000.39630.45720.51290.56380.6101
A,80.07830.15160.22000.28370.34280.39830.44980.49760.5418
A,90.06370.12410.18100.23520.28660.33470.38040.42370.4647
A,T0.04900.09590.14110.18470.22640.26640.30490.34170.3770
A,J0.03430.06770.10030.13200.16290.19310.22230.25070.2784
A,Q0.01950.03890.05820.07690.09560.11400.13200.15000.1676
A,K0.00490.00980.01470.01950.02430.02920.03400.03880.0436

Methodology: These tables were created by a random simulation. Each cell in the table above for pairs was based on 7.8 million hands, and 21.7 million for the non-pairs.

2-Player Formula

The probability of domination in a two player game is easy to calculate. For pairs it is 6×(number of higher ranks)/1225. For example, the probability a pair of eights is dominated is 6×6/1225 = 0.0294, because there are six ranks higher than 8 (9,T,J,Q,K,A).

Texas Holdem Probability Equation

For non-pairs the formula is (6+18×(L-1)+12×H)/1225, where

L=Number of ranks higher than lower card
H=Number of ranks higher than higher card

For example, the probability that J-7 is dominated is (6+18×(7-1)+12×3)/1225 = 150/1225 = 0.1224.


Written by: Michael Shackleford

Poker can be a fun card game for the family, or a serious competitive game in which the steaks can be so enormous, even selling your house wouldn’t cover the costs.

There are many variations of poker, with Texas Hold ‘Em being the most popular worldwide.

Below are a whole bunch of poker facts and statistics which help you understand the chances of wining and the odds of getting the cards you want.

Did You Know?

A pocket pair is cards of the same rank, which means if your two cards have the same number, from 2-2 all the way up to A-A, this is called a pocket pair.

Texas Holdem Poker Odds

  • The odds of receiving any pocket pair is 5.9% which is 16 to 1. These are also the same odds of receiving a pocket pair of 2’s.
  • The odds of receiving a specific pocket pair: 0.45% or 220 to 1 These are the same odds for receiving a pocket pair of A’s.
  • The odds of receiving a pocket pair of A’s twice in a row is 0.002047% or 48,840 to 1.
  • The odds of receiving a pocket pair of K’s is 0.9% which is 220 to 1.
  • The odds of receiving a pocket pair of Q’s is 1.4% which is 73 to 1.
  • The odds of receiving a pocket pair of J’s is 1.8% which is 54 to 1.
  • The odds of receiving a pocket pair of 10’s is 2.3% which is 43 to 1.
  • The odds of receiving a pocket pair of 9’s is 2.7% which is 36 to 1.
  • The odds of receiving a pocket pair of 8’s is 3.2 which is 31 to 1.
  • The odds of receiving a pocket pair of 7’s is 3.6% which is 27 to 1.
  • The odds of receiving a pocket pair of 6’s is 4.1% which is 24 to 1.
  • The odds of receiving a pocket pair of 5’s is 4.5% which is 21 to 1.
  • The odds of receiving a pocket pair of 4’s is 5.0% which is 19 to 1.
  • The odds of receiving a pocket pair of 3’s is 5.4% which is 17 to 1.

Poker Fast Facts

The total number of possible royal flush hands in a standard 52 card deck is 4.

And the odds of making a royal flush is 649,739 to 1.

This is correct assuming that every game plays to the river.

In poker terms, the river is the name for the fifth card dealt, face-up on the board.

In total, there are 2,598,960 possible poker hands with 52 cards.

Texas Holdem Probability Chart

The odds of getting four of a kind in Texas Hold ‘Em is 4164 to 1.

Casinos normally change decks after 15 minutes of steady play, so that the cards can always be fresh and unmarked, as many professional players would be able to remember the certain markings on cards and use that to their advantage.

This is only a basic overview of poker odds, there are many calculators online that can help solve the odds of getting certain hands, depending on what stage of the game you’re at, what cards you currently hold and how many people are playing.

Poker Probability Texas Holdem Wikipedia Codes

Now you are familiar with these odds, you can use them to your advantage for a better poker strategy when you finally decided to play a tournament.

In Texas Hold-Em Poker the odds of making a royal flush hand is only 649,739 to 1.