Match ends, Wigan Athletic 0, Leeds United 1.
Alex Mowatt struck a second-half winner for Leeds to leave Wigan eight points adrift of Championship safety.
Outgoing Latics chairman Dave Whelan's passionate speech on the pitch before kick-off failed to inspire a first home win since August.
Mowatt, who scored a spectacular free-kick as Leeds beat Ipswich 2-1 on Wednesday, scored with his left foot from the edge of the penalty area.
Leeds keeper Marco Silvestri had to tip over a late James McClean free-kick.
Whelan, 78, who announced his resignation on Tuesday after 20 years as Wigan chairman, addressed the club's fans before the match. He will stay on as the club's owner.
Malky Mackay's side improved after going behind to midfielder Mowatt's eighth goal of the season, and were perhaps unlucky not to save a point.
Leeds were just a point above the relegation zone at the turn of the year, but head coach Neil Redfearn has pulled them towards mid-table, overseeing a run of seven wins in 10 league matches.
They had a penalty appeal turned down in a dour first half, with striker Billy Sharp claiming he had been brought down by Wigan defender Gaetan Bong.
|Wigan have failed to win any of their last 15 home games, losing eight. Their last success at the DW Stadium was a 4-0 victory over Birmingham on 30 August.|
Wigan created little before half-time on a poor pitch, with Kim Bo-kyung's deflected shot their best effort.
Wigan substitute Don Cowie was unsuccessful with a penalty claim - for handball by Giuseppe Bellusci - and McClean's shot on the turn was pushed aside by Silvestri moments before Mowatt scored.
Just before the hour mark, Leeds' Italian keeper had to parry another shot from Republic of Ireland international McClean, who later hit a volley into the side netting as Wigan were frustrated in their attempts to find an equaliser.
Wigan manager Malky Mackay: "I'm just looking at the stats and we've had 60% possession and 19 attempts on goal.
"To end up with so much of the ball, in their six-yard box, and not be able to put the ball in the net is disappointing."
Leeds United manager Neil Redfearn: "The goal was a bit of quality and brilliance that was probably not in keeping with the rest of the game.
"But if anyone was going to win the game, it was going to be us.
"I thought we should have had a blatant penalty in the first half, but we don't seem to get these decisions."
- 17BoyceSubstituted forKvistat 67'minutes
- 28PearceBooked at 90mins
- 15PennantSubstituted forCowieat 45'minutes
- 32FortunéSubstituted forMckayat 78'minutes
- 26Al Habsi
- 15WoottonBooked at 86mins
- 3BambaBooked at 57mins
- 23L Cook
- 7MurphyBooked at 39mins
- 8SharpBooked at 68minsSubstituted forAntenucciat 88'minutes
- 19MorisonSubstituted forCaniat 87'minutes
- 9Oliveira Tavares
- 35Del Fabro
- Geoff Eltringham
- Shots on Target
Second Half ends, Wigan Athletic 0, Leeds United 1.
Attempt missed. Harry Maguire (Wigan Athletic) right footed shot from outside the box misses to the left.
Attempt blocked. Sheyi Ojo (Wigan Athletic) right footed shot from outside the box is blocked. Assisted by Jason Pearce with a headed pass.
Offside, Leeds United. Luke Murphy tries a through ball, but Charlie Taylor is caught offside.
Jason Pearce (Wigan Athletic) is shown the yellow card for a bad foul.
Foul by Jason Pearce (Wigan Athletic).
Mirco Antenucci (Leeds United) wins a free kick in the defensive half.
Foul by Billy McKay (Wigan Athletic).
Sol Bamba (Leeds United) wins a free kick in the defensive half.
Attempt missed. Harry Maguire (Wigan Athletic) header from the centre of the box is just a bit too high. Assisted by Kim Bo-Kyung with a cross following a corner.
Corner, Wigan Athletic. Conceded by Marco Silvestri.
Attempt saved. James McClean (Wigan Athletic) left footed shot from outside the box is saved in the top centre of the goal.
Kim Bo-Kyung (Wigan Athletic) wins a free kick in the attacking half.
Foul by Giuseppe Bellusci (Leeds United).
Substitution, Leeds United. Mirco Antenucci replaces Billy Sharp.
Substitution, Leeds United. Edgar Cani replaces Steve Morison.
Foul by William Kvist (Wigan Athletic).
Billy Sharp (Leeds United) wins a free kick in the defensive half.
Scott Wootton (Leeds United) is shown the yellow card.