Marcus W. Walden
- Bats Right, Throws Right
- Height 6' 0", Weight 195 lb.
- School Fresno City College
- High School Fresno Central High School
- Born September 13, 1988 in Fresno, CA USA
He began his career with the GCL Blue Jays and went 2-4 with a 3.05 ERA in 12 games (10 starts) for them in 2007. With the Auburn Doubledays in 2008, Walden was 2-3 with a 4.80 ERA in 14 games (11 starts) and in 2009, he was 2-1 with an 8.64 ERA in 4 starts for the Dunedin Blue Jays - though he missed most of that season and all of 2010 due to Tommy John surgery.
Returning an improved pitcher for 2011, Walden was 6-6 with a 3.24 ERA in 28 games (13 starts) for the Lansing Lugnuts. He went 14-4 with a 2.97 ERA in 27 games (26 starts) split between Lansing (14 G, 5-2 W-L, 3.10 ERA) and Dunedin (13 G, 9-2 W-L, 2.85 ERA) in 2012 and in 2013, with the New Hampshire Fisher Cats, he was 6-14 with a complete game shutout and a 3.71 ERA in 26 starts.
Walden spent four days on the roster of the Toronto Blue Jays in April 2014 without appearing in a game. Shortly thereafter, he was designated for assignment. The Oakland A's then signed him and assigned him to triple-A. It remains to be seen if Walden will shed his "phantom major leaguer" tag.