Grimsby produced a clinical display to beat Gillingham 2-0 in their Sky Bet League Two match at Blundell Park.
First-half goals from Niall Maher and Gavan Holohan put the hosts in full control, which proved enough to consign Gillingham to their second successive league defeat.
Grimsby pushed for an early breakthrough and the opening goal came on 12 minutes when defender Maher glanced home from a corner.
It was 2-0 shortly before the half-hour mark when Danny Rose and Abo Eisa combined to find Holohan who drilled in a low finish.
Toby Mullarkey blazed over on the half-volley shortly before the break, but Grimsby were full value for their lead.
Grimsby went close to a third soon after the restart as Harry Clifton forced Gills keeper Jake Turner into a low save.
Eisa also tested Turner during the closing stages when he brushed off his marker to strike a powerful left-foot effort.
