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Junior Mariners
Connecting Kids to Mariners Baseball

Mariners Kids Club

Registration for the 2019 Mariners Kids Club is now closed. 2020 Kids Club registration will begin in November.

It's Time to Sign Up to Play Ball!

Spring is around the corner and so is Little League season. Sign your kids up to play baseball or softball today. 

Mariners Grand Slam Baseball and Softball Camps

Families at T-Mobile Park


Meet the Moose
The Moose Den is located in center field on the Main Level at Section 191. Meet the Moose every game and get a photo during the following times:

  • 90 minutes to 30 minutes before first pitch
  • 2nd, 3rd, 7th & 8th innings

For information about private Moose appearances, call (206) 346-4321 or email

Kids Play Area
The Seattle Children's Hospital Playfield in center field on the Main Level features a playground, Moose's Munchies concessions, the Seattle Children's Hospital Wishing Well and the Kid's Clubhouse Store.

Television monitors are conveniently located so parents won't miss any of the game.

Kids Corner
Features free timed run, hitting and pitching challenges and photo opportunities for kids 14 and under. Located in the 300 level, behind Section 328.

Kids Team Store
From toddlers to teens, the Kids' Clubhouse has cool stuff for kids. Our store features everything a kid could want, including apparel and Mariner Moose items! The Kids' Clubhouse is located in the Center Field Plaza on the Main Concourse.

Birthday Tours & Team Banquets
Learn how to take a special T-Mobile Park tour with your friends, teammates or classmates.