Parker (5-6) allowed six runs on seven hits and three walks while striking out five over three innings to take the loss versus the Padres on Wednesday.
The six runs allowed were a season high for Parker, who has given up at least four runs in four of his last six starts. He struggled in his last outing before the All-Star break and labored through his three frames Wednesday as well. The rookie southpaw is now at a 4.34 ERA, 1.21 WHIP and 81:24 K:BB through 95.1 innings over 18 starts this year. Parker's next start is projected to be at Arizona.