Jim Johnson, RHP: D-
Three blown saves in a row is hard to swallow, but on paper, Jim Johnson didn't pitch horrendous, which keeps his grade above failing. He did pick up five saves and his ERA in August was 3.72; still, those three blown saves bring his season total to nine and are looming big as the playoffs near.
Tommy Hunter, RHP: B+
Tommy Hunter had two bad outings last month: one in Arizona on August 12 and one in Boston on August 28. Other than those two outings, Hunter pitched extremely well in the rest of his 14 appearances and finished the month with six holds, two saves and a 2.45 ERA.
Francisco Rodriguez, RHP: C+
K-Rod's August was rather average. He did pick up two wins and his 3.75 ERA wasn't awful, but he struggled at times and had a notably bad outing in Boston on August 28.
Darren O'Day, RHP: C+
O'Day is in the same boat as K-Rod: He didn't pitch awful, as he pitched to a 3.38 ERA, but a couple of bad outings left a black mark on his August. The submariner picked up two loses in August, both of which came via a solo homer.
Troy Patton, LHP: B
Other than allowing three runs in mop-up duty in Boston, Troy Patton was solid in August, only allowing two runs in his other 8.1 innings of work over 10 appearances.
T.J. McFarland, RHP: D+
The Orioles' mop-up/long reliever gave up at least one run in each of his five August appearances and finished the month with a 8.10 ERA. On a positive note, he did eat up some innings when he was asked to.
Brian Matusz, LHP: C+
Just like fellow lefty Troy Patton, Matusz pitched well besides allowing a couple of runs in mop-up duty in Boston. Matusz seems to be the pure "left-handed specialist" in the Orioles' bullpen, as he only pitched 6.1 innings in August.
Josh Stinson, Steve Johnson, Kevin Gausman, RHPs: A
All three of these young pitchers saw very limited time in the majors in August (Stinson 2.1 IP, Johnson 1.0 IP, Gausman 1.0 IP), but all kept their opponents off the scoreboard.