Arizona Diamondbacks at Colorado Rockies

DENVER (Interstat) — The Arizona Diamondbacks will visit the Colorado Rockies on Wednesday, Sept. 23, 2026, at Coors Field. The game-time forecast calls for 69 degrees. Arizona enters 83-74. Colorado is 57-100.

Arizona is expected to start Merrill Kelly, who is 9-14 this season. Colorado is expected to start Mason Adams, who is 0-1.

Michael Soroka is a player to watch for Arizona. In his most recent outing, Soroka pitched seven innings and allowed one earned run on two hits with one walk and nine strikeouts in a 7-2 win at Colorado on Tuesday. He allowed one earned run over five innings with six strikeouts against Miami on Sept. 15. He gave up three earned runs over four innings at Kansas City on Sept. 9.

Zach Agnos is a player to watch for Colorado. Against Arizona on Tuesday, Agnos pitched four innings and allowed two earned runs on three hits with one walk and one strikeout. He allowed two earned runs over three innings against San Diego on Sept. 17. He gave up two earned runs over two innings at Detroit on Sept. 13. At the New York Yankees on Sept. 10, he allowed four earned runs over 1 2/3 innings. He gave up two earned runs over 2/3 inning against St. Louis on Sept. 5. At Atlanta on Aug. 29, he threw 2 2/3 scoreless innings with one walk and one strikeout.

The Diamondbacks won the most recent meeting, 7-2, on Tuesday at Coors Field. Nolan Arenado went 3 for 5 with one home run and one RBI. Juan Morillo pitched a scoreless inning with two strikeouts. For Colorado, Nick Frasso and Juan Mejia each pitched a scoreless inning in relief. Arizona has won six of the past 10 meetings between the teams.

Arizona’s recent results include an 8-4 win over the New York Yankees on Sept. 20, a 5-3 win over the Yankees on Sept. 19 and a 9-2 loss to the Yankees on Sept. 18. Colorado’s recent results include a 2-1 loss to Seattle on Sept. 20, a 5-3 win over Seattle on Sept. 19 and a 5-4 loss to Seattle on Sept. 18.

Both teams continue the series Thursday in Denver. Arizona then travels to San Diego, while Colorado heads to Chicago to face the White Sox.

Interstat’s game simulator projects a final score of Arizona 7, Colorado 4. Interstat’s ELO system gives Arizona a 64.8 percent probability to win. Arizona is installed as a pregame favorite with a spread of -1.5. The over/under is 11.