The result keeps Wigan seven points ahead of QPR. Wigan are below 17th-place Sunderland on goal difference with a game in hand.
Former Wigan defender Leighton Baines struck a late penalty against his old club to earn Premier League highflyers Everton a point in an entertaining 2-2 draw at the DW Stadium on Saturday.
Newcastle's bid for Champions League qualification suffered a reality check on Saturday as Wigan eased their relegation fears with a thumping 4-0 win over the Magpies.
Struggling Wigan breathed life into the Premier League title race with a stunning 1-0 upset of Manchester United on Wednesday as Manchester City romped to a 4-0 win over West Bromwich Albion.
Kenny Dalglish and Liverpool's wretched Premier League season continued on Saturday as Gary Caldwell's second-half winner allowed struggling Wigan Athletic to record their first ever victory at Anfield.