Grimsby’s impressive away record continued with a 3-1 victory at 10-man Stockport.
The Hatters, who were unbeaten in five league games at Edgeley Park, dominated the early stages but fell behind to a rapid-fire double.
After Ryan Johnson’s error was pounced upon by the Mariners, a parried Otis Khan effort fell fortuitously into the path of Harry Clifton for a tap-in on 24 minutes.
The hosts failed to recognise the warning signs and were two down inside the half-hour mark when Gavan Holohan rifled home from point-blank range.
Poacher Paddy Madden then handed Dave Challinor’s side a lifeline before the interval when he scored for a third successive game on the rebound.
A rejuvenated Stockport outfit thought they had a leveller after the restart but Myles Hippolyte’s fierce effort was saved heroically by stopper Max Crocombe.
Any chance of a comeback then faded when Callum Camps compounded a frustrating afternoon with a straight red card for a rash challenge in the 72nd minute.
Deep into added time, substitute Alex Hunt added a third as Grimsby coasted towards a sixth successive away game without defeat.