WGASC/MBOS is SoCal's Premier Winter Guard and Marching Band Circuit
MBOS Registration will be opening on May 21. In advance of that date, please ensure that your ensemble is listed on our Member Roster page. If not, please be sure to register for an account on our new website. **YOU MUST HAVE AN ACCOUNT to register your ensemble for MBOS Events**.
To establish a new ensemble account, please visit the MBOS New Member Registration page and complete the form.
| Platinum Sponsors | |
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| Creative Costuming & Design | Designs by King |
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| Band Shoppe | Director's Showcase |
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| Winter Guard Tarps | MVP Apparel |
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| Remo | Halftime Mag |
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| Innovative Percussion |
WGASC Now! |
| WGASC Platinum Sponsors | |
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| Creative Costuming & Design | Designs by King |
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| Band Shoppe | Director's Showcase |
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| Winter Guard Tarps | |
