PHOENIX (Interstat) — Brett Sullivan hit a three-run homer and Zac Veen added a two-run shot as the Colorado Rockies beat the Arizona Diamondbacks 6-4 on Wednesday, Aug. 12, 2026, at Chase Field.

Sullivan’s blast in the second inning erased a 1-0 deficit and put Colorado ahead 4-1. Veen homered in the fourth for a 6-1 lead. Arizona answered with single runs in the fifth, seventh and eighth, including Corbin Carroll’s solo homer in the eighth, but got no closer.

Ryan Feltner (5-6) earned the win, allowing two earned runs over five innings with seven hits and two strikeouts. Merrill Kelly (8-10) took the loss. Jordan Romano pitched a scoreless ninth for his 12th save. Jimmy Herget also contributed a scoreless inning. Gerardo Carrillo allowed one hit over two scoreless innings for Arizona. Brandyn Garcia and Philip Abner also each pitched a scoreless inning.

Willi Castro had two hits and an RBI for Colorado, which had eight hits. Carroll led Arizona with two hits and an RBI. The Diamondbacks had 11 hits but grounded into two double plays.

Colorado improved to 50-73. Arizona fell to 65-58. Attendance was 17,168, and the game lasted 3:01.