Hot answers tagged

6 votes

Calculating odds with 2 cards to come

I'm not entirely sure what you are trying to say with the math that you have in your question, but I think you are trying to show how you get the odds of hitting a flush or a straight on the turn or ...
6 votes
Accepted

Do odds depend the the number of hands folded preflop?

Assuming you know nothing about the cards dealt, they don't matter, so the 66% holds up. In most calculations we would just ignore the folded cards since we don't have any definite information about ...
  • 1,053
6 votes
Accepted

Most possible outs on river. And you are behind

If you're looking for the most outs whilst needing to improve, it's 25: Hero 6⋄7⋄ Villain 2⋄2♥ Board 4♥4⋄5⋄9♣ 8 diamonds 6 ...
  • 350
6 votes
Accepted

What are the odds of drawing the idiot end of the straight flush on the flop

In order for two people flopping a straight flush we need: a connected three straight flop, all cards having the same suit. No cards can be lower than a three or higher than a queen. player 1 ...
  • 2,804
5 votes

exact same card back to back to back

I get about once every 325 hands. Not that uncommon.
5 votes

What's the Probability of hitting the board on the Turn or the River

When facing an "at least one of" problem, you can't just add probabilities. You have to calculate the probability of missing everything, then subtract from one. Assuming 47 unknown cards, 6 of which ...
5 votes
Accepted

Distinct head-to-head match ups in holdem

Note 1 in the article on Hold'em Odds elaborates on this a bit further: [Note 1] By removing reflection and applying aggressive search tree pruning, it is possible to reduce the number of unique ...
5 votes
Accepted

What is the correct calculation to make various combinations of Hold'em hands?

Based on your calculations... If you hold 4 cards (A to 4), you will ALWAYS make a pair? Estimate with 3/50 * 5 instead of the annoyingly similar fractions: (3/50 * 5) * 4 = 60/50 !? ===---=== The ...
  • 694
5 votes
Accepted

Do Odds Change if Count of Players at Table Change?

Before anyone speaks, no matter how many players there are the distribution is still totally random. Each card has, for example, exactly the same probability to be in anyone's hand. However as soon ...
5 votes

Why is AK vs 22 a coinflip?

22 vs AK is a "coinflip" (or just a "flip") because there is approximately an equal chance of either hand winning, just like the equal chance of either side of a coin coming up when flipped. In ...
  • 1,562
5 votes

Confused about pot odds

Here is another way to look at it: Gained if you call and win: 30+50 = 80 Lost if you call and lose: 50 Your Equity = 0.36 EV = Equity(Gained when win) + (1-Equity)(Lost when lose) EV = 0.36(80) + (1-...
  • 166
5 votes
Accepted

Is there a calculator that shows what my "potential" odds are?

If you have an android phone you can download "Poker calculator", logo is a clover as you can see topleft. It is a great app. It supports hold 'em but also 4 and 5 card omaha high and omaha high/low....
  • 2,804
4 votes

How do I calculate the odds of making a four of a kind by the river given I have a pair?

Without taking into account the fact that the very act of seeing the flop with one or several other player(s) influence the distribution of the flop (*), here's one way how you could compute these ...
4 votes
Accepted

How many ways to shuffle a standard deck of 52 cards?

It turns out that each shuffled deck is in the order that may have never before existed in the history of the universe! :) The odds of you getting two 52 card decks arranged in the exact same order ...
  • 455
4 votes
Accepted

What's the Probability of hitting the board on the Turn or the River

Sometimes during play you want a quicker method that isn't 100% but gives you very close percentages. The rule of 2 and 4. If you have 2 cards left to reveal (ie the turn & river) then you ...
4 votes
Accepted

What are the odds of a at least a certain amount of aces being dealt depending on the number of players?

These are the chances (assuming you have no ace): These are valid only preflop assuming that there are 50 cards left in the deck (you are holding 2) and you are one of the players (2 players = 1 ...
  • 561
4 votes

What are the odds?

From a probability perspective, you can think of this as two events: the first being each of the five player getting dealt a pocket pair, and the second dealing five cards that match those pocket ...
  • 141
4 votes
Accepted

What's wrong with my equity calculation?

At first, I thought, OK, lets quickly answer this, returning the favor. But it turned out to be a rather tricky one! One online calculator gives 48.18%, the other 48.28%, off by 0.1%, already very ...
4 votes
Accepted

Worst possible matchup pre flop

K♠K♥ vs. K♦2♠ (and the other equivalent combinations--those with different suits, as long as the suit of the deuce matches one of the opposing kings). About a 19-1 dog.
4 votes

Pre-flop decision making factors

Nice question and I think the factors you are considering are by far the most important ones to remember. However I'd also say remember, as you also mentioned, the position of players who raised ...
  • 4,491
3 votes
Accepted

Tallying monte carlo simulation and ties for Texas hold'em

Tie is neither win nor loss. Therefore, you should have a counter for ties the same way you have a counter for wins. In any case a round with a tie should be removed from your simulation.
3 votes

5 cards draw odds

This answer assumes you have no additional knowledge of the opponent's cards. You have five cards in your hand. Of those, three are spades and two are not spades, so you need two more spades to ...
  • 3,888
3 votes

What should a new player memorize?

You've been given a very good answer above by @vlzvl in fact, I upvoted it. So, I'm going to go in a different direction and just give you some "meta" advice that I think you will find helpful. This ...
3 votes

What is the correct calculation to make various combinations of Hold'em hands?

if I hold two different cards, what's the probability I get a pair at river? Probabilities computation can quickly get very complicated and you need to be very precise in what you want to exactly ...
3 votes

Odds of three people at a 9 ring game having the same hole cards

Unfortunately, this is the kind of probability question that would take a couple of hours and reams of paper notes to get the exact answer. But simulating it is easy (I have loads of C code for that). ...
3 votes

Pocket Aces at a 8-10 Player Table

Frisbee's answer is correct. But it only answers for eight players (although the other numbers are hidden in that table). Since the OP asked for 8-10, I will add the answers for nine and ten players. ...
  • 1,053
3 votes

When taking pot odds into account after the flop, use chance of hitting with next two cards, or just the next card

That depends on what you're contemplating, and what you think future action will be. For example, if you're contemplating a bet that will put you or your opponent all in, then the odds of the next two ...
3 votes
Accepted

When taking pot odds into account after the flop, use chance of hitting with next two cards, or just the next card

This depends on number of things you have to consider, not only the direct odds. What I mean: The pure odds you calculate should be used if you expect your opponent to check the turn and you see free ...
  • 64
3 votes

Why is AK vs 22 a coinflip?

A coin flip is when the chances of either hand winning are about 50%, the same as a coin flip coming up heads or tails. Most players consider anything in the range of 45-55% as being a coin flip, ...
  • 1,313

Only top scored, non community-wiki answers of a minimum length are eligible