3 under-the-radar Mariners prospects primed to leap onto the map in 2027

The Mariners have a strong farm system. These three prospects could make it even stronger in 2027.

By Zachary Rymer · SoDo MoJo

Published: Saturday, 24 October 2026 at 7:00 PM

Key Things to Know

Zachary Rymer highlights Nick Becker, Mason Peters, and Jake Brown as breakout Mariners prospects for 2027.
Shortstop Nick Becker stole 46 bases and posted a .407 on-base percentage during the 2026 season.
Left-handed pitcher Mason Peters recorded a 2.10 ERA and 4.6 K/BB ratio across 64.1 minor-league innings.

The Story in 60 Seconds

Zachary Rymer highlights three lesser-known Seattle Mariners prospects who could break out during the 2027 season. The list features shortstop Nick Becker, left-handed pitcher Mason Peters, and outfielder Jake Brown, all identified as potential risers behind the organization's top-tier prospects.

Becker stole 46 bases with a .407 on-base percentage across the Arizona Complex League and Single-A Inland Empire in 2026. Peters posted a 2.10 ERA over 64.1 innings despite dealing with midseason forearm soreness, while Brown recorded an .802 OPS in 24 games after being drafted 65th overall.

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3 under-the-radar Mariners prospects primed to leap onto the map in 2027

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