As impressive as 23-1 is, two things need to be brought to life, that stat is across nine years, Sean Casey doesn't bat for the Reds anymore, neither do Barry Larkin or Aaron Boone.
The current 2009 Reds roster that has seen Oswalt hit hime hard, .295 BA overall, and Oswalt is no where near pitching to his 20 game winning form yet.
ERA is almost five, has a very pedestrian like 1.44 ratio.
His opponent Cueto, is off to a much better start, his team the Reds, are off to a much better start, and they are at home.
Lean Reds with Cueto.