Grimsby made it two wins from two on home soil to start the League Two season after beating Bradford 2-1.
The hosts went ahead in the 28th minute through captain Danny Rose, who swept home the loose ball from a free-kick delivery that Bradford goalkeeper Sam Walker could not claim.
Grimsby then had a great chance to double their lead in the first half, but Evan Khouri blazed his shot over the bar from close range after the ball had been cut back from the left side by Denver Hume.
But Grimsby were able to celebrate a second goal two minutes after the break, with Jason Dadi Svanthorsson sliding in his first goal for the club from close range after Kieran Green had played him in from the right channel.
The Bantams pulled one back in the 78th minute as half-time substitute Olly Sanderson followed in on Clarke Oduor’s deflected effort which Jordan Wright saved.
Grimsby were able to resist a late Bradford push to get back to winning ways.