New York Mets vs Arizona Diamondbacks — May 9, 2026 | AI Prediction & Stats

This afternoon desert showdown at Chase Field features a classic tale of two pitchers heading in opposite directions. Clay Holmes has been masterful for the Mets with a 1.69 ERA and excellent command, relying heavily on his sinker (49.5% usage) that has generated weak contact all season. Meanwhile, Merrill Kelly is struggling mightily with a 9.95 ERA, making this a prime spot for New York to capitalize despite their own offensive limitations. The 103-degree heat will test both teams' endurance, but Holmes' efficiency and ground ball approach should help him navigate the conditions better than Kelly's more volatile profile. Arizona enters this game desperate after dropping three straight and posting a dismal 2-8 record in their last ten games. While Ildemaro Vargas has been a bright spot with his .360 average and 6 home runs, the Diamondbacks are missing too many key pieces including Carlos Santana and Jordan Lawlar. The Mets, despite their own struggles at 15-23, have shown better recent form at 6-4 in their last ten and are coming off a confidence-boosting 3-1 victory in last night's series opener. New York's bullpen depth, even without A.J. Minter, gives them a significant late-game advantage over Arizona's depleted relief corps. The key will be whether Holmes can work efficiently through Arizona's lineup in the desert heat, as his sinker-heavy approach should generate quick outs and keep his pitch count manageable. Juan Soto's presence in the Mets lineup, even if he's not at peak form, gives them a legitimate threat against Kelly's struggles. Arizona will need to get to Holmes early before he settles in, as their best chance lies in capitalizing on any first-inning nerves or command issues.