Clarke permitted one run on two hits and a walk while striking out four in three innings in a no-decision against the Padres on Friday.
Clarke was in line for the loss when he exited the contest, but the Diamondbacks plated a pair in the fifth inning to get him off the hook. He now sports a 5.31 ERA and 1.37 WHIP with 68 strikeouts in 84.2 innings this year.