Toledo – Casey Fien
The Toledo pitching staff was in flux a great deal down the stretch, as players went back and forth to Detroit, and some even left the organization, but Casey Fien was one constant presence in the bullpen. Casey appeared in nine games as a reliever for the Hens in August, saving six of those contests. Over his nine outings, Fien picked up 10 2/3 innings allowing only six hits and two walks while striking out 15 and amassing a 2.53 ERA.
Runner-Up – Eddie Bonine
Erie – Thad Weber
Weber was solid in four of his five August starts for Erie, before going down with a minor shoulder injury, and in his other start he was absolutely incredible. Weber fired a nine-inning no-hitter against Akron, giving up no walks and striking out ten. The only blemishes on his card that night were a hit batter and a runner reaching on an error. For the month, Weber finished with a 3-0 record in five starts, with a 3.13 ERA and only four walks in 31 2/3 innings of work.
Runner-Up – Brett Jensen
Lakeland – Lester Oliveros
In a tough month for the entire Lakeland roster, Oliveros was a bright spot in his relief outings. In 14 1/3 innings, Lester struck out 13 and walked only three. He did not give up a single home run in August, while holding opposing hitters to a .128 batting average against and posting a 0.63 WHIP.
Runner-Up – Drew Graham
West Michigan – Adam Wilk
After completely dominating the New York-Penn League, Wilk didn't miss a beat with a move to the Midwest League for his next professional challenge. In six starts for the ‘Caps down the stretch, Wilk was 2-1 with a 1.36 ERA. In 33 innings, he walked only two hitters and struck out 29, while yielding only 24 base hits. The lefty continued to prove himself as a classic crafty pitcher, but don't discount the projection left in his body.
Runner-Up – Luke Putkonen
Oneonta – Clemente Mendoza
After starting the season in the bullpen for the O-Tigers, Mendoza was quickly forced to the rotation as injuries and ineffectiveness hit the staff. Despite only a 1-2 record in five starts, Mendoza collected a 1.67 ERA including a complete game shutout. Spanning 32 1/3 innings over the month, Mendoza gave up less hits (26) than innings, and walked seven while striking out 26.
Runner-Up – Luis Sanz
GCL – Giovanni Soto
Soto was a revelation for the Tigers this summer after being drafted out of Puerto Rico. Soto started four games for the GCL Tigers and worked as the relief piece of a tandem in another, finishing the month with a 3-0 record. His 1.46 ERA was backed up by 21 hits allowed in 24 2/3 innings with six walks and twenty strikeouts.
Runner-Up – Ramon Lebron
DSL – Darlyn Duran
After hearding back to the DSL for the 2009 season, Duran had the lone goal of throwing more strikes and working ahead in the count. It is safe to say he accomplished that this year. Like Soto, Duran worked in a tandem starter situation, appearing in four games with a 1-0 record and 1.64 ERA. In eleven innings, he walked five, allowed seven hits, and struck out an impressive fourteen.
Runner-Up – Emmanuel Del Orbe