Hey guys,

We've got following Situation. Were on the BU,CO and we got a player how limps in UTG or MP (6-max). We hold a Axs (under ATs) oder small pocket 22-99. I often limp behind in this situation. Im doing this not for long, so i have no statistical results for that pre-flop line.

Do you see here any disadvantages when were folding very disciplined ? No hit on Set or TP weak Kicker.

If you raise your 99-22 you likely won't need to flop a set to win the hand ... Plus when you flop a set your hand is disguised

Oh and it needs to be said that stack sizes matter even in these spots.

So dont u think they situation get complicated with s small pair on Q7T rainbow board ? When im isolating him Pot is now 9,5 BB (Small, Big, limp and my isolating to 4 BB + his call. )

So when his stack is small 50 BB and lower. Its getting worser or better ?

If you limp-behind, you always "invite" other people to do the same, cause you give them better odds. So you will play multiway, and basically will only win the hand if you hit a set, because continuing with, say 4 4, on a K 9 8 board or whatever in a multiway pot is pretty hard imo.
By iso-raising you wil mostly play HU, and can win the pot without hitting a set. You get more info by raising, so the whole hand gets easier to play.
Also: Tourney or CG - does make a difference, at least to me, it does.
So, either fold or raise. The only time i limp there is when im in SB, BB

also in 6 max your opening range should be much wider and aggression wins a lot more in 6max than it does full ring.

I'd say if you are limping behind you are always hoping to hit a hand - set, nut flush draw, etc. otherwise we'd be raising for value.
With one limper I'd raise or fold those hands.
With multiple limpers they have given you great odds to limp behind but you have to hit your hand to win really, so I'd be fit or fold on the flop.
On tables with 3-4 limpers per hand you can get involved with more hands because you are likely to get paid if you hit.

you can't pick a single board or single type of board and just say 'well that board sucks, so i won't raise'. if you did this you'd never raise anything except monsters.

my point is, that when you raise preflop in position you have 'the lead' to take any pots where villian decides they cannot continue. And there will be alot of them after all holdem is only a 2 card game and its actually hard to hit the flop.

oh and on a QT7 board, if villian plays back at me he probable wins the pot because i'm not married to my hand but if i happen to have a set or better then he's likely toast.

as for when you have a smaller stack or villian does, well then basically you have less implied odds.....the beauty of raising in such spots is that villian still has to make a hand to continue when i cbet or delay cbet..and again, if he decides to get frisky he is not going to know if I've got a monster with my relatively wide range that im isolating him with IN POSITION.

so in short, when you raise a limper in position you have position plus the betting lead and thats is a recipe for printing money.

note: Im not saying never limp behind - never is an overused term in poker. there are certain players who make limping profitable (e.g. a reg who raises everything i plays in EP except AA when he LRRs like a super sneaky champ) or if there is a 2 limpers and you can see a cheap flop with a hand that can flop huge then cool.

+1
This,above, is the answer really.

If you are planning to fit or fold the flop and looking for max implied odds it may be OK to limp behind. You can do this profitably when stacks are SUPER deep HU but it still may be MORE profitable to just raise.

The only time I might limp behind a single limper is if I am in middle/late position with some loose fishy players yet to act. (assuming i have a small PP) I want to win preflop/go heads up/a huge multiway pot, what i don't want is to call and go three to the flop with 55

If you know that other players are; a) likely to limp along and create a big implied odds situation (and a fit or fold one), b) no one is likely to try to put in a big raise to take down the dead money/punish limpers, and c) YOU and at least the original limper have deep stacks then it can be fine to limp behind IN position with a small pair.

Here are some other things to think about;
when my opponent limps in if he is like most players that have a limp range he will have a speculative hand that will either fold to a raise preflop or need to improve OTF to continue; that makes raising an attractive option (with a wide range).

2)If you limp in behind someone when you have a small PP you are basically hoping to flop a set right? Well how much good does it do you to flop a set against a range like A2s-A9s,22-77,+suited connectors? How are you going to get stacks in against a lmp range? Maybe set vs set or vs a huge draw but how good/likely are those situation?

When you take a flop with a small PP you want your opponents range to be as tight and strong as possible. Its better to flop a set against TPTK or an over pair than against top pair middle kicker or second pair with a gut shot, right?

3) Good players tend to not have an open lmp range. That means the players llimping in are usually fish of one sort or another. Is it better to take flops in position against a bad player or to let decent-good come in to the hand?

On balance, iso-raising is usually better. Iso-raising reg fish who have speculative lmping ranges is PRINTING MONEY. Its like the best scenario you can find any more, iso-raise and bet flop has become the c-bet of the modern generation. Circa '05, c-betting was SOOOOOOO PROFITABLE! Iso-raising fish is a very similar situation in that you can bet flop without repping anything, really just betting that opponent missed the flop.

You don't give enough info. Who is UTG? What hands is he limping? Will he limp re-raise? What's the stack sizes? Are there aggressive players behind you who will 3bet your isolation raise?

Limping behind is fine in some circumstances; just as long as the button isn't an aggro player who will raise you guys after you limp.

The shorter your opponent's stack is, the more you would rather limp behind with weak-hands-that-can-make-monsters.

If the table is 75bb+, and you don't expect a 3bet, isolating the limpers is the more +EV move.

If there are one or two limpers and I'm on the button with a hand like 76s or 55, the stats I look at are "limp-fold" and "fold to c-bet". If the limpers fold to raises pre, be more inclined to raise pre. If they fold to lots of c-bets, also be more inclined to raise pre, and c-bet a lot of high card flops (Axx, Kxx, Qxx).
If villains are the more typical loose passive calling stations that limp-call and then peel on the flop, then limping behind with speculative hands is better. If you flop a set or a big draw, you'll still be able to build a big pot against the stations. If you miss the flop completely, then it only cost you 1 big blind.
In short, choose the option that maximises profit and/or minimises losses.