Pitcher's stat is a term used to refer to the performance statistics of a pitcher in baseball. ERA stands for Earned Run Average, which is the average number of earned runs a pitcher allows per nine innings pitched. SAVES is the number of games in which a relief pitcher finishes the game and preserves the lead for his team. STARTS is the number of games in which a pitcher starts the game as the pitcher of record. WINS is the number of games won by a pitcher while pitching.