The Diamondbacks are a respectable 27-27 playing at home. Colorado plays much worse on the road with a 17-34 away mark.
The price is short enough to back the Diamondbacks here especially having this strong of a pitching edge.
Colorado starter German Marquez is having a terrible season with a 6-9 record and 5.29 ERA. The Rockies' bullpen carries a high fatigue rating.
Arizona starter Madison Bumgarner has pitched much better at home where he's 5-3 with a 3.03 ERA. The Diamondbacks were idle on Thursday so they have a fresh bullpen. The Rockies finished a five-game set against the Padres in a high-profile series due to San Diego getting Juan Soto at the trade deadline.
The Rockies are much weaker offensively away from Coors Field. They rank 28th in slugging percentage and 26th in OPS on the road. Arizona has won six of its last eight home contests. The Diamondbacks swept the Giants when they last were home.