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
|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.