# Introduction

Welcome to the fourth post in this series! In the first one, I introduced my plan for conducting methodological reviews of basketball statistical models. In the second, I reviewed the **Wins Produced** model. Then, in the last post, I took a look at **Win Shares**. Today, I will analyze the Wins Above Replacement Player (WARP) model developed by Kevin Pelton.

## The Basics of WARP

As Pelton outlines at the beginning of his write-up on WARP, he based much of his work on Dr. Dean Oliver’s. Since I already wrote about Dr. Oliver’s model, I will try not to delve too much into the parts of his writing used by Pelton. Doing so would make this series too repetitive to be ideal as a *review*.

My opinion is that there are two pivotal frameworks in use by Pelton: Dr. Oliver’s work is the first, while the second is related to his use of the concept of a “replacement player”. Having previously described Oliver’s impact on modern basketball analytics, let’s focus on the effect of the latter framework.

Continue reading “Methodological Reviews of Basketball Models – Part 4 – WARP”