Wigan are now ten points clear of third-placed Bradford with five matches left following a 1-0 win over Coventry City.
Will Grigg’s effort separated the two sides as the striker notched up his 23rd goal of the season, as the Latics all but sealed promotion to the Championship.
Burton are now four points off the leaders as they lost 1-0 at Scunthorpe, who won for only the third time since February. Neal Bishop’s tap-in gave the Iron the three points, but their hopes of reaching the play-offs seem unlikely as they lie nine points adrift of the top six.
At the bottom, Crewe were relegated to League Two after a 3-0 defeat at Port Vale. Louis Dodds scored a brace with JJ Hooper’s curling effort sealing their neighbours’ woes.
Oldham moved out of the relegation zone with a 1-0 win over play-off hopefuls Walsall, with Curtis Main scoring his third of the season with just 25 minutes left to play as the hosts kept their fourth clean sheet in a row.
Colchester beat fellow relegation candidates Blackpool 1-0 away from home, but the U’s are still eight points from safety. Chris Porter’s seventh goal of the campaign saw the Tangerines drop into the bottom four.
Bradford climbed to third place after a hard fought 1-0 win over Swindon, as Billy Clarke grabbed the game’s only goal just 20 minutes into the match with a cool finish from a long throw. The Bantams are now six points off of Burton with five matches left to play as they push for automatic promotion.
Millwall moved up to fourth with a 3-1 win over Shrewsbury, who now find themselves in 20th after initially taking the lead through Larnell Cole. However, the Lions responded with Ben Thompson’s 25-yard volley, Steve Morison’s header and a Lee Gregory penalty.
Fleetwood remain just outside of the relegation zone after a 2-2 draw at Southend. Bobby Grant put the visitors in front with a wonderful long-range effort, before Adam Barrett and Jack Payne put the Shrimpers 2-1 up, but a 90th minute strike from Conor McLaughlin earned what could prove to be a valuable point for the Cod Army.
Relegation-threatened Doncaster saw their survival chances take another blow with a 1-0 loss at Bury, as Leon Clarke scored a late volley with just over ten minutes left to play, meaning Donny are now eight points from safety.
Rochdale are now seven points off the play-off places after a 2-1 victory at Peterborough with all three goals coming in the first-half. Dale took a 2-0 lead through Joe Bunney and Nathaniel Mendez-Laing, before Michael Smith responded for Posh.
Chesterfield are now four points above the drop zone after a 2-1 win at Barnsley, despite being reduced to ten men. Lee Novak put the visitors in the lead from Gboly Ariyibi’s cross, but Adam Hammill equalised for the Tykes. Jamal Campbell-Ryce was then dismissed for his second bookable offence, but Ollie Banks’ cool finish nine minutes from time gives the Spireites a great chance of avoiding relegation.
Meanwhile, Sheffield United and Gillingham drew 0-0 as the Blades’ outside chance of a play-off place now appear to be over.
Player of the Weekend: Louis Dodds (Port Vale)
Team of the Weekend: Chesterfield
Goal of the Weekend: Bobby Grant (Southend vs FLEETWOOD TOWN)