Flop Checkraises and River Play: Facing Barrels or Checks

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Flop Checkraises and River Play: Facing Barrels or Checks

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Cory Mikesell

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Flop Checkraises and River Play: Facing Barrels or Checks

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Cory Mikesell

POSTED Jan 25, 2021

Cory Mikesell punctuates his recent series with an examination of river play in pots that saw a check-raise on the flop. Cory discusses a variety of boards to illustrate how to react to BB barreling through and when we should stab in case BB checks.

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ralphcig789 4 years, 2 months ago

Hey Cory
I was looking on the site at some old PLO theory vids.
The instructor discussed equity a lots (producing lots of numbers) however I heard equity was less important in studies since monker came along which uses ev more.
I was wondering which of your vids on RIO (or 2 or 3 available books) looked in depth @/used expected value in its analysis?
The reason is I'm a beginner to PLO but looking to investigate some of the key parts asap to get better.
Thanks

Cory Mikesell 4 years, 2 months ago

EV is the deepest mathematical truth which explains what's happening in a poker hand, you can think of it as a dollar sign floating over each hand telling you exactly how much that hand is worth. Trying to actually determine that number while playing, however, would be like trying to solve 7 calculus problems simultaneously in five seconds. This is not how humans think.

The equity of the hand doesn't map directly to the EV of a hand, but if you use equity alongside other ideas like "hand character", position, and "SPR principles" (which are topics I discuss extensively in my books), you can approximate the EV of a hand and MUCH more importantly, make the right decision.

I'm not sure what level of your career you're currently at so I'm not sure which book to recommend. If you're newer to poker, check out Poker Foundations here on as it will give you a rock solid start. If you're a sophisticated NL player looking to learn PLO, "PLO 3B Pots: Game Theory And Practice" (available here: https://www.ploquickpro.com/3betpots-spv1?ref=products) will be much more enlightening. Also my next book which will be out in a few weeks "HUPLO: The Definitive Guide" goes super deep into all of these concepts and should change the way everyone looks at PLO, not just HU.

Hopefully some of that helps.

ralphcig789 4 years, 2 months ago

Thank you v v much for that answer Cory, it gives me something to really consider deeper.
I'm going to PM you as I have a couple of q's about the new book.

ralphcig789 4 years, 2 months ago

So...
Your quote of:
"MUCH more importantly, make the right decision."
means the right decision is based on maths calculations//knowing the ev of a move?

What I'm struggling with is: between all competing options how do you work out in game what is the max +ev play(/decision/line)? (Bearing in mind the 7 calculus problems issue: you can't work it out in real time.) Is the implication: all your off the table study guides you towards 'knowing'?

Cory Mikesell 4 years, 2 months ago

The right decision is based on heuristics such as: when SPR=4, I need between 75% and 50% equity to check raise when facing a bet (I call this the 75/50/40 rule in my books) and on 762r, a hand like KT87 with two back door FDs will be right on that threshold. If my opponent bets too often, then it's likely a x/r at a high frequency. I've created heuristics like that for every spot in PLO and they allow you to navigate the ranges. I honestly could not tell you what EV monker spits out for KT87 in that spot, but I've proven my heuristic works so I let that guide me.

Lausbub 4 years, 2 months ago

I couldnt always follow what betsize was used/faced. at 9:20 is that facing a 1/4 river bet?
9:41 are those river cards after we barrel flop for half pot?
Great video though :)

Cory Mikesell 4 years, 2 months ago

If you look at the top of the chart, it will say "vs BB Quarter Pot..."

The replayer isn't working for me right now, but given that this is a video on rivers, they are probably river cards. The spot is x/r flop, OOP double barrels turn and then either IP's defense vs the triple barrel or OOP checks on bad rivers and IP bets.

Lausbub 4 years, 2 months ago

Im sure you mentioned this in the video but what is e.g. at minute 29:03 the 50,4% number mean with JT? Is it equity? The graph indicates 0% bluffs, the (25%) indicates the proportion of our range containing naked JT

Cory Mikesell 4 years, 2 months ago

the number in brackets (2.4%) indicates how often that hand class occurs in our range. The number at the bottom is how much equity that hand class has against our opponent's full range.

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