Coventry City bounced back from a goal behind at Colchester United to win 3-1 and claim a place in the League One automatic promotion zone.
Marc-Antoine Fortune sealed things early on in the second half for Coventry at the Colchester Community Stadium to make it eight league games without defeat for his side.
Leon Clarke fired the visitors ahead just four minutes in, but the division's high-flyers soon struck back with two quick-fire goals to drag themselves into top spot.
Elsewhere, Bradford City now find themselves level on points with Bury just outside the playoff zone after seeing off bottom side Crewe Alexandra 2-0 at Valley Parade, while Sheffield United remain two points further back following a 2-2 draw with Southend United.
Neil McDonald's find themselves inside the relegation zone as a result of a third league defeat on the bounce, while Fleetwood Town and Barnsley also remain in deep trouble following respective losses to Peterborough United and Port Vale.
Results in full (half-time scores in brackets): Barnsley 1-2 Port Vale (0-1), Blackpool 0-2 Doncaster Rovers (0-2), Bradford City 2-0 Crewe Alexandra (1-0), Chesterfield 1-2 Oldham Athletic (1-0), Colchester United 1-3 Coventry City (1-2), Gillingham 3-1 Bury (2-1), Peterborough United 2-1 Fleetwood Town (0-0), Sheffield United 2-2 Southend United (2-2), Swindon Town 2-1 Scunthorpe United (0-0)