Scouting Report: Kyler Castillo
Chicago Cubs | RF
Overall
Summary
Luis Castillo (note: player name in query is "Kyler Castillo" but all sources reference "Luis Castillo") is experiencing a difficult 2026 season with the Seattle Mariners. Through 9 starts and 44 innings, he has posted a 1-4 record with a 6.34-6.57 ERA, 1.57-1.66 WHIP, and concerning performance metrics. With Bryce Miller returning from an oblique injury and Emerson Hancock's breakout season, the Mariners are transitioning Castillo to a bullpen/piggyback role rather than keeping him in the rotation. His struggles include allowing multiple home runs, deep counts, and failing to pitch deep into games. This represents a significant decline from his previous four years of consistency (3.17-3.64 ERA) with Seattle.
Strengths
- Veteran pitcher with 10+ years MLB experience
- Three-time All-Star with proven track record
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