At Deer Isle, Connor Morey doubled and singled to lead the Mariners past the Cougars of Stacyville.
Morey also struck out 10 as he picked up the win.
Hayden Ciomei singled in a run for an RB1.
For Katahdin, Billy Livesey had two hits and an RBI.
Katahdin 001-001-0 — 2-9-3
DI-S 300-000-1 — 4-6-0