About Moose

Book the Moose for your next event!

Bring the excitement of the Electric Factory to your next event! The Mariner Moose – the official mascot of the Seattle Mariners – is available to visit your next public or private gathering, from birthday parties to corporate functions and everything in-between!

To feature the best mascot in baseball at your event, requests may be sent via e-mail to [email protected]. All appearance requests are handled on a first-come, first-serve basis. We ask that your requests are submitted at least 30 days in advance of the event. All requests will be reviewed and responded to within 5 business days.

Home Run Package - $350

The Mariner Moose Home Run package includes a 30 minute appearance within 35 miles of T-Mobile Park.

Grand Slam Package - $600

The Mariner Moose Home Run package includes a 60 minute appearance within 35 miles of T-Mobile Park.

Pricing notes:

  • Mariners Season Ticket Members can receive a 20% discount by including their STM ID number upon emailing [email protected].
  • Kids Club Members can receive a 10% discount by including their Kids Club member ID upon emailing [email protected].
  • Additional travel costs are subject to be added if the appearance is outside of the 35 mile range of T-Mobile Park.

The Moose Den


The Mariner Moose made his debut on April 13, 1990, during the Mariners home opener in front of a sell-out crowd at the Kingdome. The Moose was selected as the Seattle Mariners' first-ever mascot after a contest in which more than 2,500 entries were submitted by children 14 and under from throughout the Pacific Northwest. Ammon Spiller, a fifth grader from Central Elementary School in Ferndale, WA, came up with the winning idea: "I chose the Moose because they are funny, neat and friendly. The Moose would show that the Mariners enjoy playing and that they still have a few tricks up their sleeves. It shows they're having fun no matter what the situation."

The Mariner Moose feels most at home when he is surrounded by his favorite humans, Mariners fans. Moose loves skipping through the concourse, driving his ATV around the warning track, and leading cheers from every corner of T-Mobile Park. You will usually see Moose sporting his #00 Mariners jersey, but he's always rummaging through his costume closet looking for new outfits - Santa, Batman and Elvis are a few of his favorites. Whether it's giving out hugs and high-fives in the Moose Den or dancing on the dugout, the Moose is always full of energy. Much like his friends in the Mariners Kids Club, he has a tough time sitting still, but be warned, if the Moose sees you rooting for the visiting team, you might end up with silly string in your hair or a whipped cream pie in your face! He can be quite the prankster. From performing backflips during the opening lineup to waving the victory flag after the game's final out, there is nothing the Mariner Moose loves more than Mariners baseball!

Since his introduction over thirty years ago, the Mariner Moose has become one of the most recognized mascots in sports, entertaining millions of fans throughout the United States and abroad. In addition to entertaining Mariners fans, young and old, the Moose is proud to be a wonderful symbol of the great Northwest.