Chad Kuhl did another decent job, but the Colorado Rockies still did enough to overcome the Pirates, 5-1.
In five innings, Kuhl (1-6) gave up three runs on four hits, walked one and struck out three.
Right-hander Trevor Williams will start as the Pirates begin a three-game series against the Cubs on Friday at 7:05 p.m at PNC Park. Pre-game on WISR 680 at 6:40.