Mariners right-hander Hisashi Iwakuma (2-2, 5.10 ERA) was roughed up for six runs on 10 hits in 5 2/3 innings as the Mariners fell to 46-55.
MOMENTS THAT MATTERED
Peralta plates a pair: D-backs left fielder David Peralta had not driven in a run in his last five games entering Tuesday, but he quickly raised his season RBI total to 45. Peralta roped a single to left in the first to drive in A.J. Pollock and sliced a double past Mariners left fielder Dustin Ackley in the third to score Paul Goldschmidt and give the D-backs a 2-0 lead.