Greater Manassas Baseball League is a volunteer organization serving the youth of the Cities of Manassas, Manassas Park, Prince William County, Fauquier County, Clifton and Centerville.

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Greater Manassas Baseball League is a 501(c)3 non-profit organization. Your tax deductible donations go directly to registering children who could not otherwise afford to play, equipment, and other worthwhile items.

This form should be completed within 48 hours of each game’s completion.  This information will assist GMBL to reconcile the umpire billing statements.  It will also help GMBL identify areas where our umpires may need additional training or guidance.