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Expected Value [EV] Theory
Expected Value (EV) in Poker
is a very misunderstood concept. Our intention here is to
explain “expected value” as simply as possible
and to make you a better poker player by using expected value
theory in your decision making process. Without going into
a technical definition here is an example of an event that
will have a zero expected value over time (EV = 0.00) so as
to make this idea clear in your mind. Let’s say I asked
you to pick a number between one and twenty and that each
time you got it right I would pay you $20. You would expect
to be able to correctly guess the number once out of every
twenty tries. If I were to charge you $1 for each guess and
you guessed at the number millions of times then the expected
value under these circumstances would be zero. You would win
$20 every twenty tries and since it would cost you $1 each
try you would end up winning $20 for each $20 you gambled.
If on the other hand I charged you more than a dollar for
each guess you would be silly to bet against me (your expected
value would be negative) and if I charged you less than a
dollar for each guess then you would want to play against
me all day long for the rest of your life. To put this idea
into gambling terms you know that in Roulette there are 36
numbers and usually a 0 and even a 00 on a table. Clearly
your EV would be zero if the casino paid you 37 to one (plus
your original bet back) or 38 to one in total but in fact
they give you 35 to one on your bet (and your bet back) so
your expected value to make money over time is negative. And
that is assuming you are betting on only one number for each
spin. If you bet on multiple numbers on the same spin of the
wheel then your expected value is even worse.
OK now you have a feeling for
what we are talking about. How does all this relate to playing
Texas Holdem? Glad you asked. In Texas Holdem the expected
value of your first two cards depend on the cards you have,
your position on the table, and the number of players at the
table. In other words you will be happy to know that in the
dealer position (on the button) pocket aces yield an EV of
2.96 when there are ten players at the table. This data is
based on real data compiled over millions of hands and in
real money games. So in the case of our AA in the dealer spot
it goes without saying that you will make loads of money with
pocket aces. Course we have all lost pocket aces but more
often than not we will win the hand and if you have ever played
Texas No Limit Holdem then you know that going all in pre-flop
with pocket aces is the only time you can be sure to have
the one up on all other players in the hand before you have
seen a single card. It is expected value theory in Texas Holdem
that can help you make a decision to go all in pre-flop (or
not). Sometimes you are in a Texas Holdem Tournament and you
are running out of chips and it is time to make a bold play
(like the all in play). Wouldn’t you rather make a decision
that at least you know that in the long run you have a positive
expected value with a given hand and not a negative expected
value? Sometimes it is just this little difference and this
little bit of information that can help you stay in the Tournament
until you are in the money as opposed to busting out early.
We have taken the liberty to give you all the expected value
data for 10 players all the way down to 2 players so that
you can make an educated decision in the game at the crucial
time instead of gambling blind on any two cards that are yours
to play. Ultimately the all in play is the one situation the
more talented Texas Hold’em players prefer to avoid
in a pre-flop situation (unless they have pocket aces) and
by using the all in strategy you will be able to improve your
standing in a Texas Holdem Tournament without seeing a flop
(hopefully). This is assumed that nobody calls your all in
and that you pick up the blinds without a challenge.
As a rule the better the expected
value of your first two cards in Texas Holdem the better the
chances of you eventually winning the hand. In other words
if you have an EV of 1.00 your bet in this situation will
get you much more money more often than not as represented
by such a strong expected value. You must note that even hands
with an EV greater than 1.0 will lose sometimes. But in the
long run you will make money with them. Actually the hands
with an EV = 0.00 will break even over time so we suggest
that you play the two first cards with a positive expected
value as often as you can (depending on the situation). If
you are in the dealer position with JJ and three people have
gone all in for more chips than you have in total and it is
your turn to play then you should fold immediately since there
is a good probability that someone has a better hand and even
though the EV of JJ in the dealer position is 0.89 you have
to know that you are up against some very powerful hands.
In the above example we gave
you the expected value of JJ in the dealer position in a ten
player game. Below you will note the expected value of hands
in a ten player game in the dealer position:
| AA |
= |
2.96 |
| KK |
= |
2.09 |
| AK
(suited) |
= |
0.99 |
| AK
(not suited) |
= |
0.61 |
| QQ |
= |
1.36 |
| JJ |
= |
0.89 |
| 1010 |
= |
0.56 |
| AQ
(suited) |
= |
0.64 |
| AQ
(not suited) |
= |
0.37 |
| KQ
(suited) |
= |
0.42 |
| KQ
(not suited) |
= |
0.17 |
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If you habitually play hands with large negative
expected values you should not be surprised that you are losing
more than you win. For example here are some seemingly good
and bad starting hands in Texas Holdem and their associated
negative expected values (in a ten handed game in the dealer
position).
| A5
(not suited) |
= |
-0.13 |
| A2
(not suited) |
= |
-0.14 |
|
K2 (suited) |
= |
-0.12 |
| J5
(suited) |
= |
-0.11 |
| 87
(not suited) |
= |
-0.08 |
| 62
(suited) |
= |
-0.10 |
|
43 (suited) |
= |
-0.11 |
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To show you the difference position makes in
expected value please note below the same hands in the big
blind position for a ten handed game:
| A5
(not suited) |
= |
-0.30 |
| A2
(not suited) |
= |
-0.35 |
| K2
(suited) |
= |
-0.22 |
| J5
(suited) |
= |
-0.23 |
| 87
(not suited) |
= |
-0.31 |
| 62
(suited) |
= |
-0.32 |
| 43
(suited) |
= |
-0.22 |
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In other words in the big blind
an 8 7 off suit is much worse (you will lose much more money
over time playing this hand) than in the dealers position.
Please send all your comments
and questions about expected value to info@texasholdemgame.com.
Enjoy Online Texas Holdem and play smart!
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