Jeff Karstens held the Diamondbacks to one run on five hits in six innings on Monday, but got stuck with the loss as the Pirates lost 1-0 in Arizona.
He struck out three and walked one, with his only mistake coming in the sixth, where he served up a solo home run to Justin Upton. The quality start was his first in three outings, and just his third in seven starts since August 1. Though he stumbled quite a bit once the calendar turned to August, Karstens will finish the season with a 3.38 ERA, 1.21 WHIP and 96/33 K/BB ratio over 162 1/3 innings.