Poker Term Fold Equity
Fold equity in poker is quite simply a way of talking about how often your opponent will fold when your bet. For example, someone might say, “my bet is profitable because I am capitalizing on fold. Fold equity is an idea in Texas hold’em poker strategy that is particularly significant when a poker player becomes short-stacked in a Texas hold’em poker tournament. Fold Equity is the part of the pot a player can expect to win because an opponent folded to their wager.
Note (October 2014): This article needs to be re-written. Some of the stuff is okay, but the math needs to be fixed.
Until then, here's a 5 minute video on How To Use A Fold Equity Calculator.
— Greg
In this article I will cover the basics of fold equity and how it makes semi-bluffs profitable. It's a fairly simple concept though, so don't be too nervous about it.
If you don't know what equity is just yet, read up on the poker equity article before reading this one.
What is fold equity?
Fold equity is the additional equity you gain in the hand when you believe that there is a chance that your opponent will fold to your bet.
Every time you bet, there is the chance that your opponent will fold their hand. If our opponent folds, we win the entire pot regardless of how strong our hand is.
This chance that our opponent will give up their hand to our bet will increase our overall equity in the hand because we are giving ourselves an additional opportunity to win the pot as opposed to just showing down the best hand.
So every time we bet when there is a chance that our opponent will fold we are adding that little extra equity to our hand. So when you bet, think of your overall equity like this:
Total Equity = fold equity + hand equity
If our opponent will always fold, we cannot lose and therefore have 100% equity. If we do get called, our hand has equity because it is going to win the pot a % of the time.
Therefore, our total equity is our fold equity + the equity our hand has when we get called.
On a basic level, fold equity can be summarized by the following simple statements:
- How much fold equity do we have?
- If we think it is likely that our opponent will fold to our bet, we have a lot of fold equity.
- If we think it is unlikely that our opponent will fold to our bet, we have little fold equity.
- If we do not think our opponent will fold to our bet, we have no fold equity.
How do you get fold equity?
To get fold equity you have to bet or raise. If you are not betting or raising then you are not giving your opponent the opportunity to fold, so you will have no fold equity.
But you're not trying to obtain fold equity. You either have it or you don't, and you make the best decision based on what you've got. Nonetheless:
- The looser our image, the less fold equity we're likely to have.
- The tighter our image, the more fold equity we're likely to have.
You'll have the most fold equity when you've played the hand in a way that makes it believable that you've got your opponent beat. It's all about your betting pattern and history.
I probably should have clarified this point at the start, but I'm sure the majority of you will have assumed that this was the case anyway.
Mathematics of fold equity.
When you make a bet, you are basically absorbing some of your opponent's equity in the hand if there is a chance that they will fold. Fold equity can be expressed by a straightforward equation:
Poker Term Fold Equity Definition
Fold equity = (chance our opponent will fold) * (opponent's equity in the hand).
The % chance that your opponent will fold is based on your knowledge of your opponent. So for example, using your experience you could say that there is a good chance that your opponent will fold 75% of the time when making a bet in a certain situation.
Your opponent's equity in the hand is pretty self explanatory. It's just the % of the pot they expect to win on average by the river. More specifically, it's the % equity their range has, but don't worry about that for now.
Total equity in the hand.
Total equity = fold equity + hand equity
As you will remember, your total equity in the hand is your current equity plus your fold equity. Fold equity on it's own isn't all that useful, so we add it to our standard equity to give us our overall equity in the hand.
Fold equity example.
Let's say we are on the flop and we know that our opponent is holding K J on the following flop:
Flop: Q K 2
Our hand: 9 T - 42.4% equity.
Opponent's hand: K J - 57.6% equity.
I worked out the equity of each of these hands using PokerStove. Get it already.
Our opponent is first to act and bets in to us. However, we are a little short stacked and believe that if we push all-in there is a 50% chance that our opponent will fold. Without even having to work this out we can already guess that this is going to be a profitable play over the long run, but lets do the math anyway.
- Fold equity = (chance our opponent will fold) * (opponent's equity in the hand).
- Fold equity = (0.5) * (57.4).
- Fold equity = 28.8%.
Now let's find our total equity in the hand.
- Total equity = our current equity + fold equity.
- Total equity = 42.4% + 28.8%.
- Total equity = 71.2%.
So every time we shove all-in with our drawing hand we will have 71.2% equity in the hand on average. Therefore, whereas calling to complete our draw would be unprofitable with our 42.4% equity, the addition of fold equity in the hand makes our shove a profitable play over the long run.
The benefits of fold equity.
Fold equity is the reason why semi-bluffs can be profitable.
Fold equity is the driving force behind semi-bluffs. The vast majority of the time you will be using fold equity to your advantage when betting or raising with a flush or a straight draw.
On their own, these draws will generally not have enough equity to make it worth calling bets and raises. However, if you are the one betting and raising, the addition of fold equity can turn the overall equity in your favour. So over the long run, well-played semi-bluffs with drawing hands will be profitable.
Read the article on playing drawing hands aggressively for further discussion on this topic.
Pure bluffs and fold equity.
Whether a pure bluff is profitable or not almost completely depends on fold equity. This is because if you have no equity in the hand based on the strength of your cards, you are relying on fold equity alone to make the bluff profitable. For example:
Board: Q K 2 8 2
Our hand: 9 T - 0% equity.
Opponent's hand: K J - 100% equity.
Unless you believe that your opponent is folding at least 50% of the time, your bluff is not going to be profitable. Your fold equity = total equity here (current equity = 0%), so if it's less than 50% you will be losing more money than you win over the long run.
Fold equity evaluation.
You're not expected to get out your calculator and work out your fold equity every time you run a bluff or a semi-bluff. However, you can gauge a fairly accurate idea of your fold equity and use it to influence your decision when contemplating a semi-bluff.
If you have little or no fold equity, strongly reconsider making that semi-bluff.
So don't worry about the numbers involved in fold equity during play, just familiarise yourself with it and go from there. Your semi-bluffing skills should improve nicely over time.
Related articles.
Go back to the awesome Texas Hold'em Strategy.
Comments
Though I have mentioned it in passing before, I wanted to discuss the concept of fold equity in more detail, as it is an important concept in no limit Texas holdem play. Fold equity is when your chip stack gets low in a tournament; it reaches a point that you don’t have enough chips to force an opponent into a difficult decision on whether to call your all in bet.
I was watching a friend of mine play in a tournament the other night and he had some unfortunate luck early and was getting a little low on chips. We were chatting between hands a little and he stated that he was going to have to make a move soon to keep the blinds from becoming too large in comparison to his chip stack. He was talking about surviving in the tournament, but I mentioned that he would also lose his fold equity.
A short time later he raised all in from late position and the blinds folded, was able to hit a few good hands and he was quickly back into the middle of the pack, chip wise.
The exact amount of chips in comparison to your opponents where you lose fold equity is not exact, but here are a few examples. If you have 500 chips and your opponent has 10,000, you don’t have any fold equity. He or she will not be hurt much if they lose to you, so they can call with a wide range of hands to take a chance to knock you out of the tournament. If they only had 2,000 chips, the range of hands they can call with is much narrower, because they will be risking 25% of their stack.
One thing that you must realize though is that the strongest hands will call you, regardless of your chip stack. Hands like AA KK QQ JJ and AK are going to call anyway. However, by being able to get weaker hands to fold and stealing the blinds for a few rounds, you can survive until you find a good enough hand to double up with.
Poker Term Fold Equity
You can use fold equity to your advantage though, even when you lose it. Usually when you land a big hand like AA or KK, you make a standard raise to keep an opponent in the hand for the chance to win a big pot. When your chips are low enough, you can just move all in and get a call with hands as weak as KJ and small pairs sometimes.
The next time you are in a tournament, try to determine at what amount fold equity would be lost as you move deeper into the tournament and use it to your advantage.
Until next week, good luck at the tables!
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