Glad to have you here. Definitely read through jhub30's thread at some point this month, a lot of valuable ST stuff in there. Feel free to comment on and bump it when you have questions (he's on for another month as well).

I don't think you're really looking at a leak at all. Second pair are prime check/calling hands, and yeah you get put in difficult spots that make you feel too weak when you fold, but the first hand is a super easy turn fold. I feel like you remember when you get barreled off but don't remember as much when you just take it down or the river comes and you value bet. I think you can consider a thin value bet on the river with the K8 but it's pretty thin. I think raising the flop is bad absent any dynamic of check/raising light and if you do check/raise it's with that dynamic to induce.

"Sometimes I think that check-calling the flop with second pair is an extremly transparent play against a good opponent."Some play has the best expectation. In this case, it's check/calling. Just because our opponent is expecting us to make the play that does the best doesn't mean we should worry about being transparent by doing so.As shakorti mentions, if you think you're getting barreled a ton, you can do a couple things: Call down more often with middle pair, and trap more often with your monsters. If you're not getting barreled a ton, you don't have anything to worry about. It's got to be one of the two. Figure out which it is and go from there.

Hey Papergo,I'm a 100 ST reg, I look forward to following this thread and working together.I'll start chiming in with some comments if thats cool with you :). I think as a standard check-calling middle pair and check-deciding on later streets works perfectly fine.Then what you can do is play a reactionary strategy: If villain isn't barreling much, check-calling flop and check-folding later streets should work well, and you can continue just check-raising stronger hands because he's not going to punish you so much for being unbalanced there. If you find a villain is barreling a ton, then you can start check-calling stronger hands on flop and just calling down all the way, you can also call down multiple streets with those second pair hands, and you can do stuff like check-calling flop and check-shoving turn with your draws which destroys his barreling range.Also board texture is a very important factor cause most people will barrel a good bit on some textures but not so much on others.Interesting disscusion to start off :)Edit: Ups I hadn't seem Mers' comment.

Thanks nico - great post.

Depenjding on the board texture I like to call the flop and lead the turn in some spots as an alternative line.For example on a JT2   board I think u can call and lead turn on a blank with a hand like AT or a weak J.I think the benefit there would be that you gain value from hands that otherwise would check back weaker Ts some draws..  and you still have the option of folding or calling if he shoves over it (I personally tend to call down most of them) . And for most players your bet will look like a block bet which doesnt want to get raised so u can induce some bluff there. Definately to consider as an option for an alternative line but  not sure in which spots excatly yet.maybe it can be good aswell if you can represent the turn card and you have air on the turn? for example If you have A2  flop comes JT2, turn 8   you call and lead turn?I personally like it more with good cards as mentioned above (but thats probably just because i hate the bet/fold line?) gl Valuelol aka archiethegreed 

Here's a great HUD to use if you have HEM:http://forumserver.twoplustwo.com/185/heads-up-sng/awesome-hud-v2-free-1...It's the one I use. The most important stats are opening frequency, 3-betting frequency, c-betting frequency, OOP calling frequency, limping frequency, and flop c/r frequency.HUDs are not mandatory but I think they can help a lot.

lolsteamroller is actually working on a new HUD that breaks it down by stack sizes - I haven't been introduced to one that does it well yet. This HUD doesn't break it down so you have to pay attention to those differences.

1 misclick 2flush / 2 pair / air (30%) imo

i meant my best guess would be, the first hand is a misclickand the second hand, he has a flush, 2 pair, or air, where i think he mostly has 2 pair

i would openship tbh ur 15 bbs A7o cant be bad imo, am curious what mers will think bout it :p

"I'm a bit shy to ask this question becaue I suppose it is really basic, and I 'should' know the answer already for years." The basic questions are by far the most important. Never feel shy about asking them. They are what are most important to ask. "In the beginning of my poker studies I learnt that you have to play against draws like this: raise (or bet) big enough to give to your villian incorrect odds to call. If you make him do mistake by his call you earn money on a long run."This is a good question. Let's talk about it.Let's say you're on the turn. Think about it from your position. You're OOP with a flush draw and you check to your opponent. The pot is t400. Three things can happen:a) Your opponent can checkb) Your opponent can bet an amount that you know is correct for you to callc) Your opponent can bet an amount that you know is not correct for you to callThe best case scenario for you is A. If not, you'd prefer B. C is the worst thing that can happen. In A, you'll get a certain percentage of the pot back depending on whether you hit. In B, you've made a bet you'd rather not make - t200 against your opponent's t200, for example - because you know that because of all the dead money in the pot, it's still better than folding. And in C, you get no percentage of the pot, because to continue would be to lost even more on average.Now, in the context of your entire range, you want to be able to bluff, you want to be vaguely balanced. As Valuelol just points out, you don't know if your opponent has a draw, maybe he has middle pair, and a big bet causes you to get no value. That's a very bad result. So it is often correct against his entire range to bet an amount that is incorrect for his pairs to call, but correct for some of his draws to call, etc. It's whatever works best against the entire range.In theory land, if you KNEW your opponent just had a draw, you'd bet enough so that it's incorrect to continue, but that's generally not what works best against his entire hand range.

I don't have a clue what Serk had on the A82, especially if he doesn't have much of a dynamic on you. I think it's categorically a bad play.

I think openjamming pre is best against Serk 15bb deep. He flats a lot of hands (probably even hands he shouldn't) which actually significantly reduces the value from minraising to induce with a hand like A7o.Flop is really close and I'm tempted to just fold against a lot of people's donking ranges, who will realize that you may be checking back this board a lot. The only thing that gives me pause is that Serk will call with some stuff he really shouldn't pre which widens his air range on this flop (Kx/Qx stuff where he knows this flop hits his perceived range strong), so especially with the backdoor clubs, calling is OK.Once the king hits and he checks, it's a little weird. JTS said he thinks he has a lot of two pair - I disagree, with the straight draws and the 3 to a flush out there. I don't think he checks the turn that often with two pair. When he jams river it's a weird line because he only really reps flushes/QT with a club and he can have 86/87/67/Q8 and some random air that bet flop just because of how hard it hits his flatting range and now knows that when you check this turn with all the draws out there, your range is pretty weak. He can also jam some QJ type stuff for value as well hoping to get heroed so I'd probably make a fold and then immediately wonder about it.

Bet/calling turn isn't the worst option in the world, for sure. You don't rep very much air with that line, but I think it's enough that he has to call it off with his Jx, and thus probably suboptimal.

I'd just check. I think he leads turn with a lot of his pairs so we have the best hand a decent bit. When we have equity from checking behind that increases the % of the time we need folds.

As for gameflow, there's some stuff in the 3betting article about it. In general, it's just keeping in mind your perceived image and what your opponent thinks your frequencies are.

I think you're trying to fold out too thin of a range given that he likely would lead a lot of pairs on the turn.

I would fold pre, but it's marginal.I would shrug and fold river, but make a note of this and start checking your big hands to him on the river in situations where your range seems capped by doing so, to take advantage of this possible overbet bluff instinct.

I'd check/call the 87, I know rams opens a wide frequency and c-bets a wide frequency which makes it more of a jam, but we're crushed against a lot of better draws/Tx/9x (and 9x is always getting it in given all the draws) so I think c/c is best.I'm c-betting the AQ. If you really think he's check/raising so much that it's making your life tough, guess what: That means the expectation from jamming over the check raise is good! I think you're trying to fold out way too thin of a range with your turn bet, especially if you don't follow through on the river. I'd just call turn as played.

I'd just call his turn lead with the AQ.If we do get to this spot on the river, I'd probably give up. You have the best hand enough of the time that checking has OK expectation, so betting has to beat that. There's also a spade draw/straight draw that he can put you on. A blank 6 on the turn would be better for jamming.

Fold or 3bet bluff pre imo, I know I've been saying to call wider, but I think this is a little too wide. Given his opening frequency, I'd probably check raise and get it in on this flop, rather than let him realize his equity in position. We have a holding where only a small % of his range crushes us, and we can occasionally induce jams from worse.

You mean for raising the flop? I'd make it 100-120, We want him to believe that we can have air in his range as he might jam 4x/pocket pairs below tens if he thinks that. That's a pretty small part of his range and he won't often do that, though, so it's not a big difference.