Arizona Diamondbacks vs. Colorado Rockies: Game Preview and Lineups for May 15 Matchup

This article previews the Major League Baseball game between the Arizona Diamondbacks and the Colorado Rockies scheduled for May 15, 2026, at Coors Field in Denver. It details the starting lineups for both teams, featuring key players such as Ketel Marte and Corbin Carroll for Arizona, and Edouard Julien and Mickey Moniak for Colorado. The pitching matchup highlights Merrill Kelly starting for the Diamondbacks against Kyle Freeland for the Rockies. The analysis emphasizes the Diamondbacks' recent success, particularly their bullpen's performance, which boasts the lowest ERA in May despite fewer innings pitched due to strong starting rotation efforts. The piece also discusses the historical difficulty of playing at high-altitude Coors Field and notes the significant return of Nolan Arenado to his former home stadium. Since being traded to a divisional rival, Arenado faces his old team while the Rockies struggle with the worst record in the majors. The article contextualizes the game within the broader season performance, noting the widening gap in win percentages between the Rockies' home and road records.