Had enough of baseball statistics?

Baseball statistics are so detailed that I find them bewildering but 38 pitches has gone beyond the normal to create his own statistical measure...

'PDF = Pitchers Dominance Factor is calculated as follows:
Take the leagues Starters ERA (Only the starting pitchers ERA! Very important!) and add the leagues Starters BR9.
Then take your pitchers ERA added to HIS BR9. You will end up with two numbers, the first we call the Leagues Total offense against, or LTOA, and the second number is that pitchers PTOA. Now subtract the PTOA from the LTOA. As a formula it looks like this: League ERA+BR9 – Starters ERA+BR9.
The resulting number is that pitchers Pitcher Dominance Factor, or PDF.'