Andy Liddell's first minute opener for The Latics was not enough to claim three more points for the home side as Scott Taylor (pictured) grabbed a late equaliser for Steve McMahon's men.
Crewe took advantage of Wigan's slip-up but were made to come from behind to beat Brentford 2-1 at Griffin Park.
Stephen Hunt had put The Bees in front after 11 minutes but soon were down to ten men after Martin Rowlands was sent off for two yellow cards just before half-time.
The Alex's Kenny Lunt proved to be the difference as his two goals in the second period gave them three important points towards their promotion aspirations.
Cardiff City left it late to claim a point at Ninian Park after going behind to struggling Barnsley through a Bruce Dyer penalty seven minutes after the break.
However, Gavin Gordon was the hero for The Bluebirds as his last minute equaliser saved the home side from an embarrassing defeat.
Oldham Athletic stay in fourth position despite going down to a 1-0 defeat against Plymouth Argyle at Boundary Park.
Micky Evans' goal six minutes before half-time was enough for Paul Sturrock's men, as The Pilgrims closed to within five points of the promotion play-off places.
Bristol City stay fifth but lost ground on the automatic promotion places with a disappointing 2-1 defeat against managerless Colchester United at Ashton Gate.
Scott McGleish had put The U's in front after 12 minutes but on loan Craig Fagan was able to bring the home side level shortly after the break.
However, caretaker manager Geraint Williams saw his side claim three valuable points as Thomas Pinault scored the winner with eight minutes left.
QPR keep their place in the play-offs after coming from behind to earn a 1-1 draw at struggling Northampton Town
The Cobblers' new signing Brent Rahim put his side in front after 16 minutes but Paul Furlong would equalise on the hour mark as both sides shared the points.
Luton Town are in the play-off picture following a 2-1 victory at struggling Port Vale.
Tony Thorpe and a Kevin Nicholls penalty were enough for The Hatters, as Mark Boyd scored a consolation goal for cash-strapped Valiants.
Tranmere Rovers slipped away from the play-off picture a little after a 1-0 defeat against resurgent Swindon Town at Prenton Park.
Andy Gurney scored the only goal of the match five minutes after the break for The Robins, who move into the top half of the table.
Wycombe Wanderers were held to 0-0 draw at home to struggling Huddersfield Town at Adams Park.
Chesterfield were also held to a 0-0 draw at home to Barry Fry's Peterborough United at Saltergate.
Stockport County got themselves an improbable win with ten men as they beat Cheltenham Town 2-0 at Whaddon Road.
County had player-manager Carlton Palmer sent off for two yellow cards seven minutes before half-time, as things looked gloomy for the away side.
However, Jon Daly was able to score a with a quarter of an hour to go and Peter Wild netted a late second to push Stockport further away from the relegation places.
Finally, in the Nottinghamshire derby, Mansfield Town held on for a entertaining 3-2 victory against rivals Notts County.
The Stags were 3-0 up thanks to goals by Andy White, Craig Mitchell and Wayne Corden before a late brace by Mark Stallard made the final moments interesting at Field Mill.
Click below for match stats:
Division Two
Brentford 1-2 Crewe
Bristol City 1-2 Colchester
Cardiff 1-1 Barnsley
Cheltenham 0-2 Stockport
Chesterfield 0-0 Peterborough
Mansfield 3-2 Notts County
Northampton 1-1 QPR
Oldham 0-1 Plymouth
Port Vale 1-2 Luton
Tranmere 0-1 Swindon
Wigan 1-1 Blackpool
Wycombe 0-0 Huddersfield
Click here for an updated Division Two table.
