AL West Preview – Mariners Prospects: (Still) Plenty of Gas in the Tank

Feb 23, 2026; Phoenix, Arizona, USA; Seattle Mariners shortstop Colt Emerson against the Los Angeles Dodgers during a spring training game at Camelback Ranch-Glendale. Mandatory Credit: Mark J. Rebilas-Imagn Images | Mark J.

Rebilas-Imagn Images Doing the A’s and the Astros’ prospect previews was, to be honest, an exercise in schadenfreude. I had a great time doing it! But it’s time now for just freude, no schaden.

Evaluators Overview Baseball America: 10th in organizational rankings, 4 prospects in Top 100 (SS Colt Emerson (#7), LHP Kade Anderson (#25), OF Lazaro Montes (#58), RHP Ryan Sloan (#60). Baseball Prospectus: 11th in organizational rankings, 5 Top-101 prospects (SS Colt Emerson (#14), LHP Kade Anderson (#28), RHP Ryan Sloan (#32), 2B Michael Arroyo (#35) OF Lazaro Montes (#97) . FanGraphs: Org rank not updated, but ended 2025 ~6th, 7 Top-100 prospects: SS Colt Emerson (#11), RHP Ryan Sloan (#20), LHP Kade Anderson (#50), OF Jonny Farmelo (#51), OF Lazaro Montes (#66) 2B Michael Arroyo (#78), SS Felnin Celesten (#86).

MLB Pipeline: 8th in organizational rankings, 6 Top-100 prospects: SS Colt Emerson (#9), LHP Kade Anderson (#21), RHP Ryan Sloan (#33), OF Lazaro Montes (#43), 2B Michael Arroyo (#67), OF Jonny Farmelo (#78) In summary, there are 4 consensus Top-100 prospects from across the organization: Colt Emerson (averaging 10th in the rankings), Kade Anderson (avg 31st), Ryan Sloan (avg 36th), and Laz Montes (avg 66th). There’s another three who are consensus top-100 or adjacents in Michael Arroyo, Jonny Farmelo and Felnin Celesten. The Mariners’ current farm system represents the restocking of the cupboards, another wave that’s beginning to grow after the last washed George Kirby, Logan Gilbert, Bryan Woo, Julio Rodríguez, Cal Raleigh, Bryce Miller and Matt Brash ashore.