A poor, laboured performance from Everton results in a draw at the DW Stadium.
Victor Anichebe came off the bench to rescue a point for Everton and spare the blushes of Phil Neville after the bizarre own goal.
Former England utility man Neville blocked a Jean Beausejour cross and the ball somehow found its way past Tim Howard on 76 minutes.
But the hosts´ lead lasted only seven minutes, substitute Anichebe heading home to ensure Everton followed up their win over Manchester City on Tuesday with a point on the road.
Everton boss Moyes threw loan signing Steven Pienaar into the starting line-up but his other deadline day recruit Nikica Jelavic on the bench.
Wigan saw midweek goalscorer James McArthur come in for Ben Watson, with Mohamed Diame on the bench after his return from the African Nations Cup.
The hosts made a bright start with winger Beausejour looking a threat down the left on his home debut.
Denis Stracqualursi, the man keeping Jelavic out of the Everton team had the first decent sight of goal in the 13th minute but could only poke it tamely at Ali Al Habsi.
Pienaar was making his first start in the Premier League this season but was quickly up to speed and causing trouble for the Latics.
Scoring goals has been a major problem for Wigan and Franco Di Santo could not make the most of a golden chance in the 20th minute.
A long ball from Maynor Figueroa caught out the Everton defence but the striker placed his shot too close to Tim Howard.
It was a very scrappy game and Jordi Gomez could only curl a free-kick well over from 25 yards after Johnny Heitinga had hauled down Di Santo.
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At the other end Wigan just about managed to scramble a Landon Donovan corner clear.
The Latics were failing to capitalise on good positions, with Victor Moses the latest culprit as his control let him down at the crucial moment when he was about to shoot.
Darron Gibson was the Everton hero on Tuesday, but he spurned a glorious chance five minutes before the break when he fired over the bar.
Everton made a change at half-time, Neville replacing Tim Cahill, but it did little to improve the quality.
Gibson did manage a half-decent effort but it was easily saved by Al Habsi, and on the hour Everton boss David Moyes sent on Jelavic for Stracqualursi.
Roberto Martinez had also seen enough, with Rodallega replacing Gomez and David Jones coming on for Ronnie Stam.
Moments later Di Santo hobbled off and Albert Crusat entered the fray.
The hosts wanted a penalty when Jones´ shot deflected behind off Pienaar´s arm, but referee Anthony Taylor waved their claims away.
Wigan have been short on luck this season but they certainly got a huge slice when a gift from Everton broke the deadlock.
There seemed little danger when Neville got a foot to Beausejour´s cross and the ball headed straight for Howard.
But the keeper let it bounce and the spin on the ball took it past him and into the net.
Anichebe came on for Tony Hibbert in the 81st minute, and within moments had levelled matters when he covereted a cross from Baines.
Wigan pushed for a winner and almost found it from a late corner but they could not force the ball in as it pinged around the Everton box.