What happens to Pot Odds when you reraise?

Say you're chasing a flush draw in a heads up pot and your opponent bets. If you choose to raise, what happens to the pot odds?

Does it matter whether villain underbets or overbets the pot?


Cheers,
Maddy

I don't know, but put me down for a guess that it still is simply what you need to call / what's in the pot (which includes his reraise of course).

let us say that there is 1000c in the pot, your opponent has raised to 100, to call you would be getting odds of 11-1 on your money, now let us say that instead you choose to raise insteat to 1000, now your are geting 1-1.1, that is for the 1000 you bet divided by the pot and the raise in front. 1000/(1000+100).

There are more factors to consider when you're raising. You not only have to consider the chance of winning the full pot after he calls but also the chance of winning what's already in the pot if he folds, and the chance of having to pay even more or fold if he raises over you. It becomes even more complicated if you might bluff again if you miss. Also, if there's more than one street left to come, you have to consider what you'll have to pay to see future cards. So it's actually a complicated mathematical problem with a whole lot of guess work. For this reason, most people base their semi-bluff decisions on a general "feel".

Pot odds can be calculated at any time because even the current bet counts you just have to recalculate how much it costs you to call vs. how much is in the pot even you portion.

Viking's post pretty much covers it. Unless you have a deepstack, raising on the draw will often give you pot odds to call if you're reraised allin. You're building your odds with what was your money, buts in the pot now.

You have to take into account the pot size, what the bet to you is. Now say the pot is 500 and he bets 100 giving you 5/1 to call...if you raise 600 into that pot(bringing the total to 1.2k) he is not getting about 2.5/1 to call. Making the correct decision statistically is extremely important because now if he was on some sort of draw the right move would be to fold. However if he is not on a bluff you might wind up losing your stack.

The pot odds are a single event, you either make em, or accept em.

If you raise, or reraise, then you are making the odds for the other player.

Villains bets will determine what your odds are at any given instant.

Keep in mind that the instant your money goes in the pot it is no longer yours, it is dead money until you do something to earn it.

So pot odds, again, are a single event situation which will occur many times during a hand that goes beyond an initial bet, and will never be the same for any other player even in that same hand. If you fold the pot odds you had will be the pot odds the next player faces, but since he has more information, and fewer potential players who might enter, his pot odds are really not the same.

I guess the key thing to take away from this is that if you're raising, your pot odds aren't a number you can calculate with 100% certainty. Because you're not closing out the action, your pot odds depend on how your opponent reacts to your raise.

Example:

Pot is 1000. You and villain both have 5000 left. The villain bets 1000 and you raise to 3000.

If your opponent folds, there are no pot odds for you as the action has ended. If your opponent calls, that makes your pot odds for the raise 4:3 retroactively. If your opponent raises all-in (5000), that makes your pot odds for the raise 6:5 retroactively.

What does this mean with regards to the decision to raise? Since 6:5 is the worst pot odds you could be getting, then it is always profitable to make that raise if you are at least 5/11 or 45.45% to win. Also, if you think your opponent is just calling 75% of the time and raising 25% of the time, your raise is always profitable if you are at least 3/7 * (0.75) + 5/11 * (0.25) = 43.51% to win.

There are a million caveats to this. Firstly, this only tells you if raising to 3000 is profitable. It doesn't tell you if it's more profitable than calling or raising a different amount. Secondly, these pot odds calculations only apply as above if there's only one more street. If the decision is on the flop, it gets more complicated, because you may be faced with another bet if you miss on the turn. Finally, the most important caveat is that the extra value added by the chance that your opponent folds to your raise is almost always the deciding factor, not these minute differences in projected pot odds. As you can see in the example, the differences are usually minute, and that's only half of the value formula in the first place. It could make a difference in extreme situations, such as a deepstacked scenario where your opponent is super LAG. But I don't think you really need a formula to tell you that you should just call there.

That's a lot of posting to describe a principle that's basically useless in practice.

Thanks guys