Nolan Arenado hit his NL-leading 39th home run in the 16th inning, and the Colorado Rockies capitalized on a throwing error by rookie shortstop Corey Seager to score three runs in the fourth en route to a 5-4 victory over the Los Angeles Dodgers on Tuesday night. Despite their fifth loss in 21 games, the Dodgers' magic number for clinching the NL West shrunk to 11 by virtue of San Francisco's 9-8 loss to Cincinnati. Mat Latos (4-10) made his first career relief appearance, striking out Carlos Gonzalez before Arrenado drove the right-hander's next pitch into the pavilion seats just to the right of center field.