Coventry City are up to eleventh in the League One table after the 1-0 win against Bradford City.
The Sky Blues are seven points, taking goal difference into account, behind Gillingham, who continue to occupy the final play-off place after a 1-1 draw at Rochdale who are eighth and five points behind The Gills.
Gillingham are only in the play-off places on goal difference from Barnsley who beat Peterborough United 1-0.
Sheffield United and Scunthorpe United could also make the play-offs if Gillingham slip up. Sheffield United won 2-1 at Shrewsbury Town and Scunthorpe United beat Bury 2-1.
The top two sides in Wigan and Burton met at the Pirelli Stadium and the game finished in a 1-1 draw as did Walsall's home game with Swindon Town, whilst Millwall went fourth with a 1-0 win over Fleetwood Town.
The bottom two sides in Crewe and Colchester met at Gresty Road and that finished in a 1-1 draw. Third from bottom Doncaster Rovers drew 1-1 at Chesterfield.
Oldham Athletic appear to be safe after winning 1-0 at Southend United.