Looking at Our Pitchers: 2008 Rays Organization

This is a summary of team pitching by level from last year. First, here are the definitions of the stats used from the StatCorner Glossary:

tRA: "tRA involves assigning run and out values to all events under a pitcher's control and coming up with an expected number of runs allowed and outs generated in a defense and park neutral environment. tRA is on a R/9 scale and does not involve any regression of the rates so while it should be more useful at determining a pitcher's true talent level, the best method for pitching projection is to use tRA*, the regressed version of tRA." This is how well they pitched.

pRAA: "Stands for pitching runs above average. Using tRA as the benchmark, the formula is (lgTRA * xOuts / 27) - xRuns." This is how much 'value' they added (or cost) their team based on the quality and quantity of their pitching.

Rays Organization Pitching

Team	Age	Level	tRA	pRAA
Tampa Bay Rays SP	27.5	MLB	4.49	40.2
Tampa Bay Rays RP	27.5	MLB	4.58	-5.6
Durham Bulls SP	26.4	AAA	4.60	19.2
Durham Bulls RP	26.4	AAA	4.80	-24.7
Montgomery Biscuits SP	25.1	AA	5.01	-15.9
Montgomery Biscuits RP	25.1	AA	5.42	-27.4
Vero Beach Devil Rays SP	24.3	A+	4.37	16.5
Vero Beach Devil Rays RP	24.3	A+	4.23	-4.9
Columbus Catfish SP	22.5	A	5.62	-50.5
Columbus Catfish RP	22.5	A	5.03	-26.2

Notes: Age is the average age of all pitchers on the team. SP is starting pitchers and RP is relief pitchers. StatCorner only covers down to full-season A ball, so Hudson Valley, Princeton, DSL and VSL are not included.