Introducing tRA

A couple years ago, I was starting to get into Sabermetrics and decided to try my hand at making a stat to measure pitcher. The end result was a stat called RCA which was based essentially on the run values of batted balls and the percentage of the time they were outs. If you're curious as to how its figured out, the original post is here. I thought it was a pretty good stat and liked it better than FIP or other measures of pitcher performance and would use it whenever I had the time to calculate it by hand.

Relatively recently though, Graham MacAree from StatCorner.com created a stat called tRA (the link leads to a full explanation) that uses many of the same ideas that I had. tRA adjusts for park and other factors though and uses different run values from the ones I used. Mr. MacAree is clearly a lot smarter than I am and its clearly superior to RCA. Conveniently, it recently became readily available at fangraphs.com, as well. Typically I've used FIP as a basic barometer of how a pitcher is doing. However, from here on out I plan to start using tRA in conjunction with FIP and just wanted to let everybody know and give them a basic explanation of what it is.

I would definitely advise you to follow the link on tRA, it's an interesting read and doesn't get so complicated that most people couldn't understand it.