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Register

12U  Baseball

Season:
Summer 2025
Starts:
2025-07-31 00:00:00.0
Ends:
2025-08-03 00:00:00.0
Registration Dates:
2025-04-02 – 2025-08-03 regular
MonTueWedThuFriSatSun
Camper Fees
Regular 650.0 + 3.2% Processing Fee
Payment Plans Available

Return to 2025 Seattle Mariners Youth Baseball Experience

This registration tab is for players ages 11 and 12.

We will be offering a travel event to Seattle Washington, July 31st through August 3rd, where players, ages 9-12, can connect with the Seattle Mariners for training, an MLB game experience, and three friendly youth games in the Seattle area. We are aiming at traveling with a 10U team (Ages 9 and 10) and a 12U team (ages 11 and 12). This will likely be a paid event. We are still waiting on few details to create a per player cost. Below is the expected itinerary for this event:


Itinerary:

Friday August 1st

-Morning Training at Seattle Mariners Training Academy

Time: 9am-12noon

Address: 5034 37th Avenue South, Seattle, WA 98118

-Game Texas Rangers @ Seattle Mariners

Time: 6:10pm

Address: 1250 1st Ave S, Seattle, WA 98134

Saturday August 2nd


-Morning Training at Seattle Mariners Training Academy

Time: 9am-12noon

Address: 5034 37th Avenue South, Seattle, WA 98118

Game Versus Mariners Training Academy Team

Time: 4pm

Address: TBD



Sunday August 3rd


-Double Header versus Mariners Training Academy

Time: 12pm & 3pm

This event offers a great opportunity for players to extend the baseball season later into the summer past the Little League All-Star tournament.

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