Southport pulled level with Droylsden at the top of Blue Square North following Saturday`s round of matches that saw the Bloods lose at home to mid-table Workington and Port win at AFC Telford United.
In front of a crowd of 1,731, Chris Simm gave Southport the lead at the New Bucks head with 18 minutes gone on the clock.
Five minutes later Ciaran Kilheeney doubled their lead with what turned out to be the only other goal of the game.
Meanwhile, at the Butcher`s Arms, a 7th minute Gareth Arnison effort proved enough for Workington to earn all three points against leaders Droylsden.
Fleetwood Town are third after a 2-1 win at the Corinium Stadium against Gloucester City, whose Marc Richards gave them a 52nd minute lead.
Lee Dodgson equalised with 18 minutes to go and then Gareth Seddon came up with the goods again for the Fylde coast outfit, grabbing the winner in stoppage time.
Stalybridge Celtic and Corby Town complete the top five and both also earned good away wins on Saturday.
Celtic beat out-of-sorts Stafford Rangers 2-0 with goals from Matty Barlow after 13 minutes and Gareth Jennings staight after the break, while the Steelmen beat Hyde United 3-1 at Ewen Fields, with Steve Towers bagging a brace in the 24th and 75th minutes.
Leon Mettam added a third for the visitors 3 minutes from the end, although there was still time for David McNiven to net an injury-time consolation for the Tigers.
At the opposite end of the table, Farsley Celtic are now only a point behind second-bottom Redditch United after beatin the Reds at the Valley Stadium.
Dave Bridgwater put Redditch in front after only 6 minutes but goals from Roy Stamer on 28 minutes and Lee Ellington 10 minutes later, turned the game in the Yorkshire side`s favour.
Indeed, Farsley are only three points away from the safety-mark, helped by neighbours Harrogate Town being heavily beaten again, this time by Alfreton Town at Wetherby Road.
Anthony Howell gave the visiting Reds a great start with a goal inside the first minute. He scored again on 23 minutes and Ian Ross made it 3-0 just before the half time break, adding a fourth 9 minutes after it.
Vauxhall Motors pulled out of the bottom three after a 3-2 home win over high-flying Eastwood Town, whose Mark Hume had them ahead after 7 minutes.
Josh Wilson levelled 12 minutes after the break and then Motors hit the Badgers with two goals around the hour-mark from Tom Grice and Josh Hine to seal victory, although Hume did manage to pull another back 8 minutes from time.
Motors are now level on twelve points with Solihull Moors and Gainsborough Trinity, who shared a goalless draw at the Northolme, Gloucester and Stafford.
The day`s biggest winners were Blyth Spartans, who hammered Hinckley United 6-1 at Croft Park.
Mick Tait gave his manager dad the boost of a 22nd minute opener that Stephen Harrison doubled on 34 minutes.
Marc Doninger added a third on 43 minutes and Ian Graham a fourth right on half time.
Paul Brayson got in on the act by netting number five 4 minutes after half time and Graham scored the sixth on 82 minutes, 6 minutes after the Knitters had scored a consolation through Alex Taylor.
The other game between Ilkeston Town and Northwich Victoria ended all-square at 1-1, with both goals coming from the penalty spot – Mark Danks giving visiting Vics a 52nd minute lead and Amari Morgan-Smith replying 7 minutes later.
