Koslo has taken the hill for 1,591 innings and has earned 606 punch outs during his career. His ERA is 3.68 (651 earned runs allowed) and his career WHIP is 1.342. He has surrendered 1,597 base hits (9.0 hits per nine innings) and has 538 walks. Koslo (92-107 career win-loss record) sits with a FIP of 3.63 and he has gone up against 6,803 opposing hitters in the majors.
