Two late goals in the space of five minutes earned Hartlepool a vital 2-1 win over Grimsby.
Billy Waters scored the only goal of the game as Barrow ended their five-game winless run with a vital 1-0 victory over Grimsby.
Promotion hopefuls Bradford were held to a 0-0 draw by Grimsby in what was a frantic Sky Bet League Two stalemate at Blundell Park.
Grimsby's impressive away record continued with a 3-1 victory at 10-man Stockport.
Grimsby picked up their first home win in League Two this season with a 3-0 victory that leaves opponents Crawley propping up the division.
High-flying Salford were frustrated by Grimsby in a lively 1-1 draw at the Peninsula Stadium.
Carlisle handed newly-promoted Grimsby their second 2-1 defeat on the bounce by edging their rearranged Sky Bet League Two meeting.
Ten-man Swindon extended their unbeaten run to nine League Two matches with a hard-fought 2-1 win over Grimsby.
Grimsby maintained their excellent away form with a 1-0 win at Colchester in Sky Bet League Two.
Grimsby remain unbeaten since the opening day in League Two but were held to a 1-1 draw by struggling Gillingham at Blundell Park.
Grimsby extended their unbeaten Sky Bet League Two run to five games with a 2-0 win at Newport.
A round-up from Tuesday's second-round fixtures of the Carabao Cup.
League Two newboys Grimsby extended their unbeaten run to four matches in all competitions after a goalless draw with Sutton.
Grimsby landed a devastating sucker punch as Luke Waterfall headed a stoppage-time winner to snatch a 1-0 victory against Rochdale at the Crown Oil Arena.
The draw for the second round of the 2022/23 Carabao Cup has been made, with 13 Premier League sides and the final two from the Championship entering the competition.
Grimsby snatched a late equaliser to pick up their first point back in the Football League with a 1-1 draw against Northampton at Blundell Park.
Grimsby suffered defeat on their return to the Football League as Leyton Orient eased to a 2-0 win at Brisbane Road.