PITTSBURGH (AP) Ryan McMahon homered into the Allegheny River, Cal Quantrill pitched into the eighth inning and the Colorado Rockies edged struggling Pittsburgh 3-2. Colorado led the entire way after trailing at some point in each of its first 31 games this season, a modern-era record. McMahon put the Rockies in front when he opened the sixth with a drive over the right-field stands against Martn Prez for his fifth homer. Oneil Cruz hit a late two-run homer for the Pirates. Pittsburgh has dropped five straight and 14 of 17.