Many thanks to Derek Carty of RotoGrinders for his assistance on this article, and for his player notes on a few 2020 player projections.
In my previous article, 2020 Projection Systems Comparison – A Game Theory Approach, I compared several excellent projection systems in terms of fantasy baseball profitability for 2020. It was not the typical statistical comparison, rather – I used a game theory approach. This was the third such annual article that I had put forth in evaluating projection systems.
Earlier this year, Derek Carty unveiled a new version of his already excellent THE BAT projection system. The new system is called, THE BAT X. The major innovation of THE BAT X is that it incorporates Statcast data into the fold. You can read more about THE BAT X works in Carty’s introductory article found here on the pages of FanGraphs.
I have typically evaluated THE BAT within my 2020 Projections comparison. With this season (despite the short duration) as the inaugural run of THE BAT X – Derek asked me to take a deeper look into how his new projection system had performed. To do this, I went back and revisited the same game theory methodology applied to THE BAT X. The initial results look very promising for the young system.
In this article, I will go through what had changed between THE BAT and THE BAT X as far as the game theory simulations. For a few of the largest and most impactful player performance differences, I will also include some analysis from Derek Carty himself as to why THE BAT X made those adjustments. Read the rest of this entry »
