At Searsport, the Mariners broke a 15-15 first-quarter tie by outscoring the Vikings by seven in the second quarter en route to the victory.
Stuart Bray paced the winners with 19 points while Lucas Oliver and Jared Gove each added 14.
Troy Reynolds scored a game-high 21 points to lead the Vikings and Barrett Grant contributed 13.
DI-S 15 30 48 73
Sears. 15 23 38 56