Mariners Promote Top Prospect Kade Anderson For Start In Seattle

Overview

• Seattle called up left-hander Kade Anderson to make a major‑league start after an exceptional Double‑A run that included 18 starts, a 1.06 ERA, a 0.643 WHIP and 135 strikeouts.
• Anderson was the Mariners’ No. 1 pick (third overall) in the 2025 draft and will be the first player from that draft class to reach the majors, according to coverage of the promotion.
• Previews listed the scheduled pitching matchups for the two‑game Seattle series as Matthew Boyd vs. Emerson Hancock in the first game and David Peterson vs. Kade Anderson in the second.
• Reports say Anderson did not exceed 80 pitches in any Double‑A start and that the Mariners are expected to limit his pitch count and likely keep him to a short outing.
• The call‑up fits a broader late‑August pattern of teams using short, managed starts from highly ranked minor‑league arms to ease rotation strain while clubs juggle rosters and track broadcasts and official lineups.