Ahkeem Rose's first goal for Grimsby Town gave them a victory over Crawley Town at Blundell Park.
In a game of few chances, the away side had looked the more likely to break the deadlock during the first half.
But the Mariners looked more threatening after the interval and finally got their reward when Rose, on as a substitute, grabbed a late winner.
Two changes were made to the Town side that beat MK Dons in the FA Cup last week, with Akin Famewo missing out and Elliot Embleton away on international duty. Harry Cardwell and Andrew Fox came into the XI.
James McKeown started in goal, with Luke Hendrie, Harry Davis, Danny Collins and Fox forming the defence.
Charles Vernam, Harry Clifton, Jake Hessenthaler and Ben Pringle were the midfielders, with Cardwell joining Wes Thomas in attack.
The Grimsby substitutes were John Welsh, Mitch Rose, Jordan Cook, Martyn Woolford, Ahkeem Rose, Sam Russell and Alex Whitmore.
Crawley began the day 12th in the League Two table, nine places and eight points ahead of their hosts.
They would look to striker and former Mariners loanee Ollie Palmer to provide a major threat.
The visitors were the first to launch an attack, with midfielder Josh Payne shooting harmlessly wide from distance within 30 seconds of the kick-off.
Palmer then hooked an effort over the bar after getting on the end of a high ball, before Town's first attak of note saw Vernam send a shot well wide.
A cross from Hendrie on the right was headed at visiting keeper Glenn Morris by Cardwell, then a Crawley attack led to a corner after a cross frrom Joe Maguire was headed out. Joe McNerney headed wide after the initial delivery was half-cleared.
A good chance for the Mariners came on 10 minutes after Crawley failed to deal with a ball into their penalty area. It eventually came to Cardwell but his effort was cleared off the line by McNerney.
Palmer sent a header over the bar after meeting a cross from George Francomb, before captain Dannie Bulman's low shot proved comfortable for McKeown to stop as Crawley continued to see more of the ball and look the more dangerous of the two sides.
A Crawley free kick was headed on by Palmer and after Town failed to fully clear their lines, Lewis Young skipped past Pringle down the visitors' right to send over a good cross but nobody could connect with the ball.
Town had been limited to few chances but they did get a shooting opportunity on 34 minutes, when an effort from Vernam was blocked.
At the other end, Clifton lost possession to Palmer but after advancing through thee middle, the striker's shot was blocked.
Cardwell was first to a delivery fom Pringle on the Grimsby left soon afterwards, with Morris making a catch after the ball looped up off the striker's boot.
Another shot by Palmer was blocked, then Young turned inside Pringle but curled a left-footer over the bar from the edge of the box.
Vernam did well to make progress down the left on 41 minutes but his low cross was cleared.
Two minutes later, a foul by Hendrie gave Crawley a free kick on their left and it was headed away as far as Payne, whose low shot was blocked.
One additional minute was played at the end of the half and with no further chances for either side, the game remained goalless at the break.
Palmer was booked within seconds of the restart after the referee spotted an infringement by the striker.
Thomas won a corner for Town on 53 minutes after good play by Clifton, then Pringle, set up an attack down the right. Pringle's high delivery from the flag beat everybody and went out for a goal kick at the far post.
A dangerous looking cross from Pringle on the right was headed away for a corner by Young and this time, the ball from the flag was headed down but Morris was able to gather it.
A mistake then looked to have let Thomas in but a heavy touch from the striker allowed defender Mark Connolly to get back and put in an excellent challenge.
Woolford replaced Cardwell as Town boss Michael Jolley made the first substitution of the game on 63 minutes.
A shot by Vernam cleared the bar soon afterwards, before Reece Grego-Cox replaced Bulman in Crawley's first change.
A foul on Thomas gave the Mariners a free kick on the right but the danger from it was dealt with and the away side broke, although Hendrie did well to stop the attack.
Town then put themselves under pressure when a short back-pass from Collins forced McKeown to come a long way out of his penalty area. The goalkeeper's attempted clearance only found Panutche Camara but as he lofted the ball back into the box, the offside flag came to the home side's rescue.
Clifton went down under a challenge on the edge of the box on 77 minutes but the referee gave the free kick to Crawley and showed the yellow card to the midfielder for simulation.
Soon afterwards, McKeown was called into action as he made a good save from Grego-Cox, who had been found inside the box by Palmer.
Ahkeem Rose replaced Vernam with 11 minutes to go, then Thomas and Clifton both had shots blocked.
A foul on Clifton on the edge of the penalty area gave the Mariners a free kick but Pringle's shot from it hit the Crawley wall.
Thomas was booked for his protests after a free kick was given to the visitors for a foul inside their box.
The deadlock was finally broken with four minutes to go and it was the Mariners who took the lead. A free kick was sent into the box and after being knocked down, ROSE was in the right place to sweep the ball high into the roof of the net.
Crawley's response saw Palmer head just wide of the far post after four added minutes had been signalled.
After that, the Mariners were able to see the rest of the game out to secure maximum points.
They are next in action on Saturday, when they travel to Northampton Town.
1 James McKeown
27 Luke Hendrie
19 Andrew Fox
24 Harry Davis
6 Danny Collins (C)
7 Jake Hessenthaler
30 Ben Pringle
15 Harry Clifton
18 Charles Vernam
17 Harry Cardwell
39 Wes Thomas
23 Sam Russell
25 Alex Whitmore
11 Jordan Cook
8 Mitch Rose
4 John Welsh
16 Martyn Woolford
21 Ahkeem Rose
1 Glenn Morris
14 George Francomb
5 Joe McNerney
6 Mark Connolly
2 Lewis Young
16 Joe Maguire
21 Dannie Bulman (C)
4 Josh Payne F
15 Ashley Nathaniel-George
9 Ollie Palmer
28 Panutche Camara
12 Yusuf Mersin
3 Josh Doherty
33 Bondz N'Gala
7 Reece Grego-Cox
27 Tarryn Allarakhia
10 Dominic Poleon
Referee: Andy Haines
Attendance: 4,459 (68)
Next Up: Northampton Town (a)