Every young ballplayer deserves a summer they'll never forget! Introducing Mariners Diamond Camps—level up your camp experience with more locations and more ways to play. Plus, don’t miss the chance to train and compete at iconic venues like T-Mobile Park, Cheney Stadium and Funko Field.
Ages 4 - 14 | Baseball & Softball | 10+ Locations | June - August 2026
June 10 – July 3
Funko Field
July 20 – 23
Cheney Stadium
July 24
T-Mobile Park
June 22 – 24
Grant High School
June 22 – 24
Sehmel Homestead Park
June 29 – July 2
SERA Sports Complex
July 6 – 9
Magnuson Park
July 6 – 9
Starfire Sports Complex
July 13 – 16
Puyallup Valley Sports Complex
July 13 – 16
Moshier Memorial Park
July 20 – 23
Lake Stevens Community Park
July 27 – 30
Capitol Little League
July 27 – 30
Rainier Playfield
August 3 – 5
Union High School
August 3 – 6
Marymoor Park
August 10 – 13
Highland High School
August 10 – 13
Meadowdale
