Grimsby Town made it back-to-back wins as they comfortably beat Newport County at Blundell Park.
An excellent Mariners performance got the reward it deserved, with Jordan Cook putting them ahead on 17 minutes.
Wes Thomas saw a penalty saved in first-half stoppage time but Cook's second goal of the game doubled the home side's advantage, before a Mickey Demetriou own-goal six minutes from time made certain of all three points.
Three changes were made to the Town side after last week's win against MK Dons, with Reece Hall-Johnson, Danny Collins and Sebastian Ring all coming into the defence in place of Joe Grayson, the suspended Harry Davis and Andrew Fox, who left the club earlier in the week.
Sam Russell continued in goal as James McKeown sat out the last of his three-game suspension, with Luke Hendrie and Ludvig Ohman completing the back five.
Elliot Embleton, Jake Hessenthaler and Martyn Woolford were the midfielders, with Thomas and Cook again selected as the strike partnership.
That meant deadline day loan signing Kristian Dennis had to be content with a place on the bench, where he was joined by Grayson, John Welsh, Harry Clifton, Harry Cardwell, Charles Vernam and Alex Whitmore.
Newport made the journey frrom south Wales with a couple of familiar faces in their squad but although ex-Mariners loanee Jamille Matt was named in the starting line-up, former Blundell Park crowd favourite Padraig Amond began among the substitutes.
Embleton won the first corner of the game on two minutes but his delivery from the flag failed to cause any significant problems as Thomas put the ball out for a goal kick.
A free kick at the other end was cleared by Ring after Matt Dolan's ball into the box had been headed on by Matt.
A shot by Thomas was deflected out for a corner on seven minute but Hessenthaler's ball was eventually cleared after it had gone all the way through to Ring on the opposite flank, having been missed by Collins.
Another Dolan free kick for Newport was headed behind for a corner and it eventually turned into another one on the opposite side of the pitch, which first led to a shot by Keanu Mash-Brown being blocked before another attempt was saved by Russell.
Cook let fly from 25 yards after a good spell of Grimsby possession but the striker's shot was comfortably stopped by visiting keeper Nick Townsend.
The Mariners took the lead on 17 minutes when the ball came to COOK near the penalty spot and his shot on the turn had enough power on it to take it past Townsend and into the bottom corner of the net.
A free kick from the right gave Town another opportunity to put pressure on the Newport goal but Ohman's header from Embleton's kick dropped wide for a goal kick.
Woolford was the next to try his luck, hitting a shot from distance after a good build-up but it was straight at Townsend.
Marsh-Brown then won a corner at the other end but the ball was cleared by Collins at the far post after it had been headed on.
Thomas was adjudged to have been fouled by Regan Poole in a slightly left-of-centre position, 25 yards out, on 25 minutes. Embleton's shot from the free kick hit the Newport wall.
Another good spell of possession by the hosts just before the half-hour led to a shot from Woolford, which flew just wide of the target.
A foul on Matt gave the away side a free kick on the right but Dolan's ball into the box was caught by Russell.
Cook turned in the box but saw his shot blocked for a corner on 35 minutes and another corner followed soon afterwards as the home pressure continued.
A low shot by Embleton was blocked at the edge of the penalty area, before Ben Kennedy drew a save from Russell after a good run through midfield by Tyreeq Bakinson.
Town were given the perfect opportunity to double their advantage as the game moved into one minute of added time when Hendrie was pushed inside the box and the referee pointed to the penalty spot. But the chance was not taken as Townsend guessed the right way and kept Thomas' kick out.
That meant the Mariners had to settle for a one-goal lead at the interval after dominating for long periods of the first half.
No changes were made before the restart and the visitors were the first to attack, although Kennedy's low strike was comfortably stopped by Russell.
A long throw by Demetriou was headed on by Matt before being cleared, before a promising break by the Mariners led to a shot fom Thomas being blocked.
Embleton lifted a shot over the bar from 25 yards, before midfielder Josh Labadie was spoken to by the referee after a foul on Hendrie.
Another long throw by Demetriou was headed out for a corner, which was cleared by Cook.
The Mariners' next attack saw them extend their lead, as the ball came across the box for COOK and he side-footed it past Townsend and into the net for his second goal of the game to make it 2-0.
Newport responded by sending Amond on in place of Marsh-Brown but before he had touchd the ball, Town almost made it 3-0 when a corner from the right fell for Ohman but his diving header a the far post was caught by Townsend.
The second change by the visitors saw Josh Sheehan replace Labadie but Town were still on top and they launched a dangerous attack down the right through Hessenthaler which led to Cook firing wide of the near post.
A shot by Embleton was saved by Townsend with his feet, before Sheehan fired over the bar at the other end.
Clifton came on for Embleton in Town's first substitution on 65 minutes, with Newport now taking the initiative as they looked for a way back into the game.
A foul on Matt on the right gave the visitors a free kick but as Dolan sent the ball into the box, the referee spotted a foul by Bakinson.
Whitmore replaced Hall-Johnson with 15 minutes to go and Pipe was shown the game's first yellow card soon afterwards when he brought Clifton down as the midfielder attacked at pace. From the free kick, Collins' header was parried away for a corner, which saw a header from Whitmore saved by Townsend.
Dennis was given his Grimsby debut as he was sent on in place of Thomas on 78 minutes, before Andrew Crofts replaced Bakinson in Newport's last change.
A dangerous cross into the Town box was dealt with as the away side kept looking for a goal which could change the complexion of the game.
But that threat was dealt with once and for all with six minutes to go as the Mariners got a third goal. Woolford got into the box from the left and after he sent the ball acrross goal, Demetriou put it past Townsend for an own-goal.
Three added minutes were played at the end of the game before the Mariners were able to celebrate the victory which a superb team performance had earned.
They are next in action on Saturday, when they make the long trip to Yeovil Town.
23 Sam Russell
6 Danny Collins (C)
5 Ludvig Öhman
2 Reece Hall-Johnson
27 Luke Hendrie
3 Sebastian Ring
7 Jake Hessenthaler
16 Martyn Woolford
22 Elliot Embleton
39 Wes Thomas
11 Jordan Cook
14 Joe Grayson
25 Alex Whitmore
15 Harry Clifton
4 John Welsh
17 Harry Cardwell
8 Kristian Dennis
18 Charles Vernam
30 Nick Townsend
2 David Pipe (C)
44 Vashon Neufville
26 Regan Poole
28 Mickey Demetriou
8 Matthew Dolan
4 Joss Labadie
15 Tyreeq Bakinson
11 Jamille Matt
19 Ben Kennedy
10 Keanu Marsh-Brown
1 Joe Day
3 Dan Butler
21 Tyler Hornby-Forbes
25 Mark O'Brien
22 Andrew Crofts
16 Josh Sheehan
9 Padraig Amond
Attendance: 3,712 (78)
Referee: Anthony Backhouse
Next Up: Yeovil Town