Wigan Athletic had an off-day across the board as they were held to a goalless draw at home by play-off chasing Rotherham.
But Paul Cook's men managed to stay on top of League One - with only five games to go - thanks to Bristol Rovers' 94th-minute equaliser against second-placed Blackburn.
Wigan's best chances fell to Will Grigg and James Vaughan, but neither were able to hit the target from good positions.
And the visitors - with former Wiganers Paul Warne and Mike Pollitt in the dug-out - could well have have nicked it on another day.
Ryan Williams twice fired just off target, with Chey Dunkley also making a phenomenal block in the opening minute to preserve another clean sheet.