Performing Range Analysis
Posted by ZombieDust
Posted by
ZombieDust
posted in
Low Stakes
Performing Range Analysis
I've recently decided to get back into poker and decided to start with some off the table work to improve my theoretical understanding of the game. I have been looking at some postflop situations with moderately wide ranges and am struggling to determine how to form my postflop strategy for my entire range. Basically, how to I determine what strategy works best for my range? Why is checking my entire range on a certain flop best for example? One recent example that I found challenging was a CO vs BU scenario. Let's say I am opening CO: 22+,A2s+,K6s+,Q7s+,J8s+,T7s+,97s+,87s,76s,65s,54s,A9o+,KTo+,QTo+,JTo
(~27% 354/1326 combos). BU flats my open with let's say: TT-22, AJs-A2s, K9s+, QTs+, JTs, T9s, 98s, 87s, AJo-ATo, KJo+ (~14% 182/1326 combos). Flop is Td 8s 6s. So in this case I have ~53/47 range advantage. What's the best way to determine if I should have a cbetting or a C/R range here? What is the best way to perform this type of analysis? I've been using a combination of Flopzilla, Equilab, and a Word document, but it takes me multiple hours to go through a single scenario. At first I was listing every combo, then tried to simplify by listing combos of two pair+, top pair, strong draws, etc. Flopzilla obviously helps greatly with this, but is there a quick way to seperate out combos that meet multiple criteria? Like in this case 97s overlaps and it takes a while to cover all these combos to ensure that I am not counting them multiple times.
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I don't have a short answer but should do more of this myself so I'm just going to write what I do to go through this and maybe that's helpful? (It's 9:14 as I start this post, curious how long it takes)
So with those ranges on that flop here's what comes to mind immediately:
1) Position is really important as hand values are going to change on lots on turns/rivers
2) He has slightly more sets+ (flopzilla says 5.6% for him, 4.1% for us) but we have tons more "strong" but not nut hands (TP+ 29.5% of the time!)
3) I don't think we'll be able to cbet total air profitably so I'm going to want some x/c and x/r hands.
First draft of ranges:
Strong hand bets: AxAx-JxJx(12), 88(3),66(3), AT(11), T8s(2) [31]
Draw hand bets: 5s4s(1), other FD(9), J9s(3), Q9s(3) [16]
Weak hand bets: 76s(3), 65s(3), 54s(3), QJ(15), A9o(9), AKdd-AJdd(3), KQdd-KJdd(2),K9(2),K7(2), A9s(2), A7s(2), A5dd-A2dd(4), Q7s(3), K6s(3), A6s(3), J8s(3) [62]
Total cbets: 109/315 = 34.6%
x/r: 97s(4), TT(3), Js9s, QsJs, Qs9s, As9s, As7s(5), A9dd, K9dd, A7dd, K7dd(4), As9x(3) [19]
x/c: 99, 77 (12), KT-JT(33), AsTs-Ts7s(6), AsA-JsJ(12), 98s(3),87s(3), T9s(3), T7s(3), AsKs-AsJs(3), A8s-Q8s(9)[86]
x/f: 55-22(24), Ac5c-Ah2h(8), AK-AJ(42), KQ-KJ(28) [102]
Total checks defended: 105/216 = 48.6%
Thoughts on first draft:
Seems like a pretty low cbet % - could definitely make an argument for betting more overpairs and throw in some more overs like AsKx, AxKs, KsJx, etc.
Feels like button's kind of owning us - he gets to pretty profitably bet any 2 when checked to. Could maybe x/r bluff an extra combo or two, don't think you want to go too much crazier but that math is a bit hazy for me.
I think as a default it's not terrible but you could probably defend a bit more and I'm sure there are tons of hands people would argue should be in different ranges (maybe x/c a couple stronger hands? Don't x/f so many overs? Bet more weak pair + draw? Other?)
Good enough for me for now - time 9:51 so a bit under 40 minutes spent on this
edit: looking quickly at his range it's actually quite hard for him to defend enough to make a cbet with air not profitable...I think part of that is that the flatting range you've given him has all the low Axs and all the low pairs. The range I use is a little different and hits this particular flop harder (though that certainly doesn't mean it's better!) Now 40 minutes exactly :/
Thanks so much for the reply! Any recommendation for avoiding overlaps when using flopzilla? Also what ranges would you use in this situation?
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