Mariners' Kade Anderson Shows Promise Despite Late Struggles in Debut
AI-generated image · US National Wire
The top prospect dominated early against the Cubs before a high pitch count led to a rocky sixth inning.
Seattle Mariners left-handed pitcher Kade Anderson made his Major League debut on Saturday, delivering a performance that started strong before unraveling in the final frame. As Sports Illustrated first reported, the 22-year-old southpaw tossed four scoreless innings and struck out five, ultimately allowing three runs on five hits and two walks over 5 2/3 innings in a 5-4 Mariners victory over the Chicago Cubs.
Anderson, who was the No. 3 overall pick in the 2025 MLB Draft and is ranked as the No. 5 overall prospect for 2026 by MLB Pipeline, appeared to be in control until the sixth inning. Sports Illustrated reports that Anderson surrendered back-to-back solo home runs to Michael Busch and Alex Bregman before exiting the game.
Analysis from Adam Jude of The Seattle Times, as cited by Sports Illustrated, suggests the Mariners may have extended Anderson's outing too long. The lefty entered the sixth inning with 72 pitches; the home runs occurred on his 80th and 81st pitches of the night. This follows a season in the minors where Anderson's peak pitch count was 80, reached in June.
Despite the late damage, the Mariners won the game on a walk-off two-run home run by Randy Arozarena. Sports Illustrated notes that Anderson reached the majors after appearing in only 18 Double-A games and is expected to remain with the big league club for his next start.