|ESPN.com: SweetSpot||[Print without images]|
|He's been very, very good. But is Corey Kluber one of the 10 best starters in baseball right now?|
Everybody starts out with a ranking of 300.0, and you can’t go lower than 300, even if you pitch badly. If you’re at 300, you’re unranked; you’re only actually on the list if you have a current score higher than 300. There would typically be 150 to 180 pitchers who are, at the moment, ranked. Pitchers never actually pitch badly enough that they would rank below 300 (if it were possible to do so) for more than two or three starts, because if you pitch that badly, you lose your position in the rotation.
When a pitcher makes a start, we:
a) Mark down his previous ranking by 3%, and
b) Add 30% of his Game Score for the start.
We base the rankings on Game Scores, which means that we ignore wins and losses, but give weight to innings pitched, runs allowed, earned runs allowed, walks and strikeouts.