Luis Castillo
Breakdown
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September 25, 2025
Dominates Rockies in 11th win
Castillo (11-8) earned the win Wednesday against the Rockies, allowing one run on one hit and one walk in 7.1 innings. He struck out 10.
Analysis
Castillo helped propel the Mariners to an American League West title, authoring one of his finest performances of the year. It was the first time this season that the right-hander piled up double-digit punchouts, and it was also his longest outing of the campaign. Castillo will be hoping to see most of his playoff action come at T-Mobile Park -- he'll close the regular season with a 2.60 ERA and 0.97 WHIP over 17 home starts versus a 4.71 ERA and 1.46WHIP across 15 road outings.
September 19, 2025
Blanks Royals in 10th win
Castillo (10-8) earned the win Thursday against the Royals, allowing three hits and striking out three across six scoreless innings.
Analysis
Castillo allowed only three baserunners through his six innings of work, leaning heavily on his breaking pitches -- mixing in 20 sliders and 16 changeups -- to induce weak contact. The right-hander was at 40 pitches through two innings but settled in nicely, needing just 84 pitches overall to log his third straight quality start. Castillo has been overall sharp in September with a 2.86 ERA across four outings and will look to keep it going in his final start of the regular season next week against the Rockies. While Colorado has reached base at the lowest rate in MLB this month, the hitter-friendly environment at Coors Field is always a factor.