Leak Finder, Part 1
Doing a leak finder, either on someone else or on yourself, is similar to being a detective examining a crime scene. In this particular case, the crime is quite brutal and gory, but aren't those the best kind to examine?
We begin by looking at the big picture, and then start breaking down the little details as they come up. In some cases, the crime is obvious. In others, it's more subtle. It's our job to offer some answers to the evidence presented before us.
So - since the goal of this thread is to help you become a more independent learner of poker, I will try to make this interactive. I will offer two a few pieces of evidence and then ask for some general thoughts. Not all the evidence is damning - it's up to you to discern between what is and isn't important and what is and isn't significant. Let's get started.
Even if you are not losing at the rate that this player is, I'm confident that the method with which I will approach looking for his leaks will give you some insight into your own game. I picked gsiciliano because he was losing at a high rate over a reasonable sample and I figured he would have some clear leaks. As it turned out, they were not in places where I would have expected.
Step 1: Select Your Sample
This means using the filters to look at your specific hands. I decided to just look at gsicilano's 10NL hands with 3-6 people. You can select both of those options in Filter menu.
For comparison, I used my own uNL database, but because I didn't have enough 10NL hands, I added 25NL to my sample to have around 35K hands.
Since I wanted to look at his databased, I asked him to export the hands and then send them to me. If you want to know how to do that, I made a short 2.5 minute
YouTube video detailing this process.
Step 2: Are You Simply Running Bad?
Examine your graph and look at your EV.
As you can see, he is playing fairly nitty preflop, yet losing at a really big rate. Our next step will examine the ... wait for it ...
Step 3: Examine Your Red Line (Positionally)
His positional stats and red line graph:
My own from 10NL/25NL:
So what can we infer so far?