Stocksbridge Park Steels slumped to a 12th successive defeat, as AFC Fylde consolidated their play-off place with a big 5-0 win.
The result extended Stocksbridge’s winless run to 20 games, in all competitions.
Fylde went ahead on 25 minutes when Joe Booth slid the ball home from close range after Jack Ward had done well to palm away a free-kick.
And the home side doubled the advantage four minutes later with the unfortunate Richard Haigh turning the ball into his own net after a Richie Allen effort had cannoned back off the post.
Allen added the third on the stroke of half-time, calmly slotting past Ward after getting clear on goal.
And he scored his second, and the home side’s fourth, when he curled in a fine effort from the edge of the box four minutes into the second half, to put the game beyond Stocksbridge.
And he completed his hat-trick on 58 minutes, clipping the ball over Ward from the edge of the box.
Goals early in the first half, then late in the second, saw Sheffield FC beaten 2-0 at play-off chasing Sutton Coldfield Town.
Stuart McNaught gave Sutton a seventh minute lead, with an easy tap in from a low cross.
In a rare start, Sheffield’s assistant manager Vill Powell rolled back the years with an overhead kick that forced the Sutton keeper into a decent save.
Steve Woolley pulled a good chance wide early in the second half after getting in on goal, with Joel Purkiss then twice going close as Club pressed for the equaliser.
However, with seven minutes remaining, Ian Whitehorne’s side were hit with a sucker punch as a long ball picked out substitute Nathan Thomas to score with a composed finish passed Liam Mitchell.
Sheffield had the chance to force a grandstand finish when they were awarded a penalty moments later only for Andy Gascoigne to woefully miss the target.
Worksop Town’s title aspirations suffered a huge blow following a 3-1 defeat against Rushall Olympic at Sandy Lane, which saw the visitors maintain their hopes of a play-off place.
The Tigers went behind on 11 minutes when Stanley Mugisha forced his way into the box to fire past Jon Stewart.
Shane Clarke saw his effort cleared off the line, then the visiting ‘keeper did well to save from Conor Higginson’s deflected volley.
However, James Dance steered home a cross to double Rushall’s lead two minutes into the second half.
Leon Mettam finished off a good passage of play to give the Tigers hope on 56 minutes with his 41st league goal if the campaign.
But despite being reduced to ten men, Rushall wrapped up the points 19 minutes from time with Mugisha slotting home his second of the game.
Frickley Athletic saw their relegation fears worsen with a 2-1 defeat at Grantham Town after the hosts scored twice inside the last four minutes.
The Blues looked to be on the way to three crucial points when Luke Hinlsey fired home on 82 minutes. But Grantham levelled four minutes later when Paul Lister turned in a low cross before Michael Towey nodded the winner inside the last minute.
Matlock Town went down 1-0 at home against relegation-battling Witton Albion, while Buxton lost by the same scoreline at Barwell.