Peterson (9-3) took the loss Friday against Philadelphia, allowing five runs (four earned) on eight hits and no walks over 3.2 innings. He struck out four.
The southpaw failed to reach the fifth inning for the first time this season, as he allowed a run in every frame during this 64-pitch performance. This is now the second time in three starts Peterson has yielded four earned runs after previously stringing together seven consecutive outings allowing two or fewer runs. The 29-year-old's ERA has risen to 3.08 across 114 total innings to go with a 1.33 WHIP and 93:43 K:BB. Peterson will look to bounce back in his next start, currently scheduled to be one with tremendous playoff implications at Atlanta next week.