Friday, August 01, 2008

69% win odds so I decide to go for it!

Phaedrus75 did a better job of describing my own video, than I did myself.



I have only just gotten around to watching this, and I thought it warranted forum discussion.

In the video Marty shows 2 hands, the first being an all-in with middle pair and a flush draw (K8s) and the second is folding pocket kings to board with 2 Aces and a flush draw.

The two hands are diametrically opposite in terms of risk tolerance, but IMO were both perfectly played.

The K8s hand, Marty has an M of 24.5. He has a lowish table Q and I would expect that his tournament Q is probably pretty low as well.

He gets to see a free flop from the BB with K8s and flops middle pair and a flush draw.

In the video, Marty describes how he was feeling, it was late at night, he had a mindset of double up or go to bed and chose to ignore GCI and let it ride with this hand (which has to be said is a very strong hand on the flop).

I think the most important discussion point in this decision is not so much about green Mzone IMHO, but about poker tournament equity.

Despite his green M, the field is starting to get away from him at this point. The next blind increase will leave him with a yellow stack. He will have then lost the opportunity to play many potential double up type hands such as suited connectors and small pocket pairs. He must then wait for big pairs and AK / AQ type hands or potentially a few re-shoves over limpers.

When he plays these hands from a yellow M, he would be aiming to playing for his whole stack. He therefore MUST win those hands and must not get sucked out on. He must also leave it to pure chance that he will get a playable hand in yellow M before his stack dwindles further and the rest of the field pulls further ahead.

In terms of tournament equity, this situation is not very encouraging. Sure, he may come back sometimes, but to reach a stack size equivalent of what he would win by shoving the K8s hand (and to have that stack size match what his Q would have been by winning the K8s hand) he needs a mini-miracle. Certainly I would estimate that the chances of the come back happening are way less than 50/50.

So instead of waiting for that to occur, Marty takes a 50/50 poker odds chance with his still viable stack. IMO shoving (or in this case calling) the draw was significantly better in terms of tournament equity, than folding to live on to fight another day.

Marty says it was uncharacteristically LAG play which made him get all his chips in with a draw. Maybe it is a bit loose, but when you consider his standing in the poker tournament at the time the hand occurred, versus if he wins this coin flip (and and lets not forget coin flip was about the worst case) then IMHO it is an insta-push or insta call every time (not just late at night).

I have been toying around with the idea that Mzone needs some adjustment for on-line tournaments to account for the speed of the blinds (even in non-turbo MTTs) as well as loose players.

Mzone has been a concept which has been around for decades. It was first given a name by Paul Magriel of backgammon fame in the 1970s I think and since then, has been applied to all tournament situations.

However when the Mzones were first developed (and I don't know if Harrington was the first to do this, but rather suspect the first to publish it), then it stands to reason that most of the Mzone theory is based on bricks and mortar tournaments (and tournaments which were being played before the Danish HLAG brand was injected into the game).

Whilst I don't think radical transformation is required for on-line, there are a couple of differences. Firstly, fast blinds and relatively shallow starting stacks typically mean that in the early middle stage, you are not that comfortable with an M of say 22. Secondly, lots of LAG on-line poker players at the start of MTTs tend to accumulate monster stacks very quickly. Unless you keep up with them to the extent that you have fold equity over them later, these are the guys who will in the later stages run over the top of you and/or suckout when you finally do get AA.

Accordingly, at about the same stage of the tournament Marty is at with the AKs hand, I have tended to be thinking of a 25-30M stack (in the early/middle stages) as boarderline yellow, meaning I can still play suited connectors and small pocket pairs in the right circumstances, but I am pretty happy to play for my whole stack with way less than the nuts.

The KK hand, was of course an excellent laydown in the face of what seemed very likely to be a bluff by a big stack. However tournament equity was now much higher and the big green stack again needs to be treated with divine reverence.

These are just my thoughts on the video and I'd be interested to hear what others say.

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