Arizona is a modest -122 home favorite after opening -118, a move that aligns with the Diamondbacks' recent form rather than signaling an overheated market. Arizona has won four of five, covered five straight, and owns a 27-20 record at Chase Field. St. Louis remains dangerous at 51-46 overall and 25-20 on the road, but the Cardinals have failed to cover three consecutive games. The starting-pitcher contrast is the main handicap. Eduardo Rodriguez arrives off his first career All-Star selection and gives Arizona the steadier swing-and-miss option, while Andre Pallante's contact profile can be vulnerable against a Diamondbacks lineup that has scored efficiently throughout the past week. The clubs have played five one- or two-run decisions in the season series except Arizona's 9-4 win, so laying a large run line would add unnecessary variance. At the current price, Arizona's moneyline is the cleaner side, with the total of nine requiring disciplined bullpen and lineup confirmation before first pitch.