Seattle Mariners Starting Pitchers 2026
Rotation Overview
The Seattle Mariners rotation averages a 109 Stuff+ across 5 tracked arms. The top strikeout arm posts 9.4 K/9. Use PitchProphet's live engine for game-day K, ER, BB, and IP projections adjusted for opponent, weather, and park.
Full Rotation Stats
| Pitcher | Hand | K/9 | ERA | BB/9 | Avg IP | Stuff+ | Proj K |
|---|---|---|---|---|---|---|---|
| Logan Gilbert | RHP | 9.4 | 3.46 | 1.9 | 6 | 115 | 6.3 |
| Luis Castillo | RHP | 9.2 | 3.4 | 2.5 | 6.5 | 113 | 6.6 |
| Bryan Woo | RHP | 9.1 | 4.56 | 1.9 | 5.7 | 111 | 5.8 |
| George Kirby | RHP | 8 | 3.98 | 1.9 | 6 | 109 | 5.3 |
| Emerson Hancock | RHP | 7.5 | 2.8 | 2.5 | 5.8 | 97 | 4.8 |
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