Mason Adams makes MLB debut for Rockies against Nationals

Mason Adams is set to make his MLB debut as the Colorado Rockies face the Washington Nationals on August 25, 2026. Adams was called up from Triple-A Albuquerque after a strong performance there, posting a 2.08 ERA in three starts. He joins the Rockies as they try to snap a seven-game losing streak, following a loss to the Nationals in the first game of their series. The Nationals will counter with Andrew Alvarez, who has a 3.60 ERA in 20 starts this season. The game is underway, with first pitch scheduled for 4:45 PM MDT.

• 9:45 PMYahoo Sports — Colorado Rockies @ Washington Nationals game discussion: Mason Adams vs. Andrew Alvarez