Mariners Just Added An Outfield Athlete With Intriguing Upside

Kyle Boylston, a dual-sport athlete, is bringing his record-breaking speed to the Seattle Mariners, aiming to prove his potential despite being an undrafted rookie.

Kyle Boylston’s path to pro baseball took a detour through Division I football, and now he’s headed to the Seattle Mariners.

After the 2026 MLB Draft wrapped up, Boylston signed with Seattle as an undrafted free agent, giving the Mariners a speedy outfielder with a rare athletic background and plenty of room to develop.

Boylston arrived at Florida Atlantic University intent on playing both football and baseball, but he never actually appeared in a football game for FAU. By the 2025-26 academic year, he had narrowed his focus to baseball, and that’s where he made his mark.

In 2026, Boylston started 37 games and made 45 total appearances for FAU. He hit .289 with three home runs, and he also showed off real game-changing speed on the bases.

He stole all 14 bases he tried to take and wasn’t caught once. At one point, he tied a school record by swiping three bases in a single game.

Before college, Boylston was a standout at Trinity Christian, where he starred as a wide receiver and defensive back. As a senior, he caught seven touchdowns and added 27 tackles on defense. Georgia Tech and Western Kentucky were also in the mix for him, but he chose FAU and eventually turned that athleticism into a shot at professional baseball.

It’s still the beginning for Boylston, and as an undrafted signee, he’ll have work to do. But the Mariners are betting on the kind of speed, versatility and raw athletic ability that can help a player keep climbing.

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