A Major League Baseball regular-season game between the Cincinnati Reds and the Arizona Diamondbacks at Chase Field in downtown Phoenix. The contest is part of the 2026 MLB season and sees the Diamondbacks host the Reds at their retractable‑roof ballpark, which has served as Arizona’s home stadium since 1998. Spectators can expect a standard MLB matchup between two National League clubs in an indoor/outdoor park setting.