Acton-Boxboro Boys Varsity Lacrosse defeated Chelmsford 11-4 in the first round of the MIAA Division 1 East Tournament on June 3, 2012, at Acton-Boxboro High School in Acton, Massachusetts.

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From 6/3/2012 - Boys Varsity Lacrosse - MIAA D1 East First Round - Chelmsford vs Acton-Boxboro