Marcum has retired from baseball.
The 35-year-old pitcher is calling it quits after a nine-year major league career and will instead coach for the baseball team at Northwestern Oklahoma State University. Over his major league career, Marcum compiled a respectable 3.93 ERA and 1.23 WHIP in 1,030 innings.
Indians starting pitcher Shaun Marcum had arguably his finest start of the season during Thursday's 6-0 win against the Mariners. Although, Thursday's outing might have passed for one of the best in his career as well.
Marcum (3-1) was unhittable for 4 1/3 innings Thursday. He didn't allow his first hit until Mark Trumbo's single with one out in the fifth inning. The only other hit Marcum allowed was a leadoff douvle to Robinson Cano in the seventh inning.
Marcum did not walk a batter and struck out five. He did hit one batter and threw 68 of 106 pitches for strikes.
''It was nice to go out there and be able to locate the ball and take what I've been doing between starts and actually have it happen,'' Marcum said, per the Associated Press.
The right-hander will be back on the mound Tuesday against the Cubs.
Indians starter Shaun Marcum took the loss on Friday against Baltimore, dropping to 2-1 on the season.
The loss was Marcum's first since July 6, 2013. He was out of the Major Leagues all last season.
"Seems like it has been a rollercoaster," Marcum said of his four starts since getting called up from Triple-A. "One start is decent and the other one not so good. I'm trying to get better each time. My mechanics and arm slot felt better this time."
Marcum allowed three runs on eight hits over 6 1/3 innings. He walked one and struck out four. His next start will be Thursday, against Seattle.