Quote:
Originally Posted by DevinLake
As for bet sizing your self. You have to ask your self what you think of the opponent. Is he a weak reg, or a strong reg. Is he curious, or more weak tight? The weaker regs, and the weak tight players will call your obviously value bets (1/2 pot type bets) with their bluff catchers all day long. A good opponent should realize a bluff catcher is no good vs an obviously value bet. The better players, and more curious players are going to pay off bigger bets. The curious ones, because they are curious. The stronger ones, because you are balancing your range, betting good bluff cards for thin value, and betting amounts that could be a bluff.
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Curious - I have no doubt that the vast majority of players call on the river out of curiosity - I've done it myself, and it's a huge leak - identify them and exploit them senseless.
I'm just catching up with the thread, and the general conversation about bet sizing - my twopence:
Betting one of the decisions you make. The whole of your decision making process really resolves itself into a single question:
Is my equity + fold equity positive?
In Devin's example from the post I quoted, he had very little hand equity (HE), but a whole load of fold equity(FE) - the sum of the two gave him a positive expectation, so he made a bet, and tried to size it to achieve a situation where his HE+FE was positive.
You guesstimate hand equity from putting your opponent on a range, using your HEM/PT3 stats initially, then modifying your judgement based on bet sizing and any timing tells you have.
FE also comes from HEM/PT3 stats, adjusted by your interpretation of villain's line.
This is all that cash poker is, no more. Both ludicrously simple and excruciatingly hard.
Here's Deurdy's hand:
Hand#1
Villain/SB is 21/17 with 9.1% 3bet over 180 hands.
BTN was 36/14 over 14 hands.
Poker Stars $100.00 No Limit Hold'em - 9 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com
SB: $149.95
BB: $29.55
UTG: $105.85
UTG+1: $111.55
UTG+2: $28.90
MP1: $20.00
Hero (MP2): $100.90
CO: $120.60
BTN: $88.30
Pre Flop: ($1.50) Hero is MP2 with 9c Tc
4 folds, Hero raises to $4, 1 fold, BTN calls $4, SB raises to $14, 1 fold, Hero calls $10, 1 fold
Flop: ($33.00) 9s 6d 4s (2 players)
SB bets $25.00, Hero ?
SB is 3 betting 9.1$ over 180 hands, so he could be up to ~14% or as low as 5% - not unwise to err on the side of caution, so let's assume it's really 6.5%.
6.5% gives us a range of:88+, ATs+, AQo+, KQs
T9 clubs gives us 33% equity against this range: There's $23 in the pot, so $10 call is 10:23 or 10/33 to break even; ~30%, so a call is fine just on hand equity it's fine - implied odds probably make the call even better. What about raising? Guesstimate that villain calls/shoves with QQ+, AK, and folds the rest = 2.6% 0r 2.6%/6.5% = 40%, so you have 60% FE v him, but you have another opponent, and he may well get in too ~10% of the time, so your FE drops to 50% for a raise, and if called your HE is prob ~23%.
50% FE + 23% HE when you need to raise pot is not good! So calling is OK, raising is bad.
On that flop, your HE is 54% to 46% against his 3 bet range. But he c-bet it.
We have no info on his cbet% in 3 bet pots, but typically, this will tend to 100%. So we get very little information from his cbet. We now know that we are WA/WB and its almost 50/50. We have massive HE and FE against half his range, and very very little against the other 50%. So what is profitable in this situation? If you raise and he folds, you had the best hand, if you call, you are really making the worst possible play because you are just delaying the decision you must make, and hoping he doesn't double barrel and/or hit on the turn. Folding when you have 50% equity also doesn't feel good!
Here, you have to raise. The profitable play is then the right amount!
There is $58 in the pot. You know you can't call a shove, so you must give him no indication of weakness, or he may bluff you off the pot, on the other hand, you don't want to put a lot of money in and then fold. A $58 bet has to work just over 50% of the time to be profitable, so slightly less will accomplish the task - ~$50 would be the right amount, but then you only have ~36 left, and if he shoves, you only need ~20% equity to call, and you've got 25% even against 99+,AKs. So $50 is too much because you will be committed. ~$44 avoids committing yourself to the pot, doesn't bet more than the equity in your hand is worth, and puts villain in a position where he has to call $20 in a $102 pot - doh! now villain has odds to call w AK/AQ and can shove the rest of his range.
Fiddling with the numbers isn't helping to make the decision - in fact it's getting harder. Let's go back to our best information: if he's 3 betting 6.5% or more, and cbetting close to 100%, then we have 54% equity or at worst it's 50/50. We don't care what hand he has, we will never know until he shows his cards, we only care about his range and since we are a flip or slightly ahead, with the dead money in the pot, we must just get it in. He c bets $25, you shove = profit. (+variance!)
Last edited by xPeru; 10-20-2009 at 01:46 AM.