At East Sullivan, Devin Shoppee had a double, single and three RBI while and Jordan Perry drew four walks and scored three runs to pace Narraguagus.
Spencer Thompson scattered five hits with five strikeouts and three walks to earn the victory for the Knights of Harrington.
Cameron Warren had a double, single and two RBI to pace Sumner.
Narraguagus (1-0) 112 010 2 — 7-5-0
Sumner (0-2) 010 001 0 — 2-5-3
Thompson and Alley; W. Whitten (4), Bisson (7) and Potter-Harmon