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Seattle Mariners 60-Man Roster Prospect Analysis

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(Editor's Note: This post has been updated to include all moves through Aug. 29)


Austin Adams
Dan Altavilla
Gerson Bautista
Isaiah Campbell
Nestor Cortes
Sam Delaplane
Justin Dunn
Carl Edwards Jr.
Aaron Fletcher
Joey Gerber
Logan Gilbert
Marco Gonzales
Zac Grotz
Taylor Guilbeau
Yoshihisa Hirano
Yusei Kikuchi
George Kirby
Matt Magill
Nick Margevicius
Ljay Newsome
Yohan Ramirez
Justus Sheffield
Erik Swanson
Juan Then
Taijuan Walker
Art Warren
Taylor Williams
Joe Hudson
Tom Murphy
Austin Nola
Brian O'Keefe
Cal Raleigh
J.P. Crawford
Dee Gordon
Sam Haggerty
Tyler Keenan
Shed Long
Tim Lopes
Jose Marmolejos
Noelvi Marte
Dylan Moore
Kaden Polcovich
Austin Shenton
Kyle Seager
Donnie Walton
Evan White
Patrick Wisdom
Braden Bishop
Zach DeLoach
Jake Fraley
Jarred Kelenic
Kyle Lewis
Julio Rodriguez
Mallex Smith


The Mariners brought their top 15 prospects entering the season to summer camp. That group was headed by dynamic outfield duo Julio Rodriguez and Jarred Kelenic before Rodriguez broke his wrist during summer camp. The Mariners are bringing four 2020 draftees to summer camp: first-round RHP Emerson Hancock, second-round OF Zach DeLoach, third-round INF Kaden Polcovich and fourth-round 3B Tyler Keenan. The players in that group will get an immediate jump on their development despite a highly unusual set of circumstances.


The Mariners signed RHP Seth Frankoff, who pitched the last two seasons in Korea, and added him to their pool in early August. 1B Dan Vogelbach was designated for assignment and sent to Toronto for cash considerations.

Jasson Dominguez (Photo By New York Yankees Getty Images)

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