Wigan Athletic are promoted in all-but name after hammering sorry Southend 4-1 at the DW.
Will Grigg grabbed his 25th and 26th goals of the season, with Chris McCann and Michael Jacobs adding the others.
It was a dominant display from start to finish from Gary Caldwell’s men, who also hit the woodwork twice through McCann and Yanic Wildschut, and saw Michael Jacobs head over an unguarded net.
Burton won easily at Colchester to remain three points behind with two games to go.
But Walsall, the only other side that can catch Latics, were thrashed at Bradford, and are nine points adrift with three games to play.
And with Latics boasting a superior goal difference of some 22 goals, it would take a miracle for the Saddlers to spoil the promotion party.