Bryan Woo Emerges as Mariners' Anchor with Dominant Fastball

Why this matters: Woo's performance significantly impacts the Mariners' bullpen, with a remarkably low 1.82 ERA in games following his starts, showcasing his value beyond his own pitching days.

Bryan Woo's journey to becoming the Mariners' anchor began with a transformation in college. Initially a two-way player, he focused on pitching and developed his signature four-seam fastball. The Mariners identified his potential early, investing in him despite an elbow injury.

Woo's success is attributed to his low release height and ability to locate his fastball at the top of the zone, making it difficult for hitters to track. He also utilizes a sinker, with his two fastballs accounting for 73% of his pitches. His improved secondary pitches have further solidified his role as a top-tier starter.

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Actionable Takeaway: Woo's story demonstrates the impact of pitch development and strategic deployment, turning a once-raw talent into a dominant force.

His low release height and ability to locate it high in the zone create the illusion of the ball rising, making it difficult for hitters to track.

The Mariners' bullpen ERA is significantly lower in games following Woo's starts, indicating his ability to provide length and reduce strain on the bullpen.

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