Colorado at Arizona

Arizona led this one 2-0 into the sixth last night before Colorado scratched across three unanswered runs and walked away with a game the Diamondbacks controlled for five innings. That's a rough one to swallow, but nothing about it changes the math for this afternoon. Arizona sits at 64-57, a legitimate playoff club, while Colorado is 47-73 with next-to-last in baseball in team ERA at 5.48. Ryan Feltner does nothing to change that profile: a 5.71 ERA and a habit of leaving pitches over the plate. Merrill Kelly takes the ball for the Diamondbacks instead, and his 4.88 ERA, modest as it looks on the surface, is still close to a full run better than what Colorado is sending out. Arizona is also live in a situation that favors home favorites against teams winning under 46 percent of their games, and Colorado's .392 mark checks that box. One bad sixth inning doesn't erase the gap between these two rosters or the edge on the mound this afternoon. Arizona wins on the runline this afternoon.