what are std ore minimum % hands, and std bottom hands for build my defense BB ranges vs all position? (6max 100bb)
i know i need a different denfend according to villain OR size, and to villain stats.
I think i have more problems for understand a build defense from BB vs UTG, MP..
becouse i have poor knowledge of play, i have a idea that i need defend, example:
Villain OR btn x3, (3/4.5 pot = 0.66) i need defend 34% or more, or villain make instant money.
this and estimate of villain range, are my unique tools for build my BB ranges. but the account i think no work for build range vs UTG, MP, and dont sure for CO BTN SB... XD
please, any help?
Sorry for poor english, i hope you understand. TY

Put your opponent on a range and then defend a slightly wider range than that which he is opening. Suited hands do better than offsuit. For example:

button raises 3x, small blind folds and it's on me in the big blind.

I put em on something like this: 22+, A2s+, A2o+, K2s+, K9o+, Q5s+, Q9o+, J7s+, J9o+, T8s+, T9o, 97s+, 98o, 86s+, 76s, 65s, 54s.

Going with the idea of defending slightly wider than he's opening, I'll continue with this range but I'm not gonna tell you what I 3 bet.

22+, A2s+, A2o+, K2s+, K5o+, Q2s+, Q6o+, J4s+, J7o+, T6s+, T7o+, 96s+, 97o+, 85s+, 87o, 75s+, 76o meh might fold might call I don't think it really matters and the same goes for worse hands like 65s, 54s, 43s.

Also, forget this part:

okey man TY

Yes the part is incorrect. You share the defense responsibility with SB at least or with all players involved after openraise.
But you get good odds on BB and your def range should be wide. E.g. against UTG open we should defend AJo KQo Axs all pairs suited broadways suited connectors and suited 1 gappers.

I have a question about BB def playing heads up. I am a little confused after reading this tip:
"Calling a raise pre
I have another rule of thumb for figuring out my calling range: take the villain’s raising range pre (say 50% of hands) and divide it by 2. It is essentially a practical application of the gap principle. It is all very fluid and situational though."

Say villain is opening 3x so need to def 37.5%, but villain is only opening ~50-70% of hands instead of ~80-100%. Does this mean we should defend 37.5% of the range that villain is opening, or should hero def 37.5% of all available hands?

Thanks in advance

If you are speaking strictly in terms of MDF then you would use 37.5% of all available hands and not of what he opens with. For what it is worth I don't think this is the correct approach. The best approach is to play hands that will make money based on how both of you play post flop and not some arbitrary percentage. The price you are being offered on a call will also be important.

Instead of focusing on whether your opponent can profit think about whether you can profit instead. Making a call to prevent your opponent from profiting could end up costing you more later on down the road. I'd argue that it is better to overfold your BB than to call too much.

If you go with shamway99's range you'll probably do well.

I wonder what is correct vs. a 5x open from EP. I'd imagine you'd have to drop a lot of the suited connectors since the price isn't as good. You may even want to fold AQo and small pairs. I might not fold the small pairs versus most though, because when people make this sizing they usually are a rec that is willing to stack off with an overpair.

Thanks Godson, your response perfectly aligns with some other info I was able to uncover.

"There are two ways to approach the defense:

First is the "minimum threshold approach", which means, how much do we HAVE to defend, to prevent Villain from betting any2.

The second approach is the "equity-based approach", means, how much CAN we defend - due to getting the right odds.

...Add a calling range - and the problems begin. Now - once we call, Villain will realize a certain percentage of his equity when we "defend." That means, we have to defend significantly wider to "punish" Villain sufficiently for bluffing us - once we implement a calling-range, or in other words - once we allow Villain to realize additional equity (above on the fold equity) with his weak hands."


"You don't continue in the hand pre-flop to prevent your opponent making a profit with ATC. You call with hands that will be profitable for you (given the pot odds and implied odds) vs villain's likely range. In most cases, the player facing a raise pre-flop will be able to profitably call much more often than the MDF calculation would indicate.

You can roughly assess a "range advantage" if you just put two ranges and a board texture into Equilab, but the more advanced idea is to run the equities of continuance ranges, and then think about equity realization, pot odds and implied odds.

Note that MDF does not seem very relevant. You bet, call, raise or fold not because you want to prevent villain doing something, but because it's profitable to do so for you. When there's dead money in the pot, it's +EV for villain to bet with some of his range, and it's profitable for you to continue with some of yours. Where a board (and position) favors one player more than the other, that player is expected to win more than 50% of the pot. You can't "prevent" that. You just need to grab your slice."