Scunthorpe are two points behind the leaders now following a memorable 1-0 win at Nottingham Forest - Billy Sharp netting the decisive 71st-minute goal.
Oldham moved up to second on goal difference following their 4-1 triumpth at home to Chesterfield.
Early goals from Guy Branston and Andy Liddell gave the hosts an unassailable lead, with Paul Warne adding two in the second half. Derek Niven had given the visitors hope of a point with a strike just after the interval - but the Latics still secured their third win of the season.
Walsall lost their place on top of League One after a 1-1 draw with Hartlepool United at Victoria Park.
Yeovil are still rock bottom following their defeat to Barnsley. A Robbie Williams penalty ten minutes from time saw off Gary Johnson's men.
Doncaster came from a goal behind to secure a dramatic 2-1 win against Swansea at the New Stadium.
Late goals from Dave Mulligan and Lewis Guy cancelled out Kevin McLeod's opener.
Marcus Browning's own goal just before half-time gave Gillingham a 1-0 win
over Bournemouth at the Priestfield Stadium.
Freddy Eastwood went from hero to villain in Southend's 1-1 draw with Huddersfield at Roots Hall, scoring the opener but then being sent off for
violent conduct. Pawel Abbott had levelled for the visitors.
Rotherham took a late lead through striker Deon Burton against Bradford, but Dean Windass levelled within three minutes remaining to ensure a 1-1 draw at Millmoor.
The game of the day came at Ashton Gate, where Bristol City got off the mark in spectacular style - seeing off Port Vale 4-2.
Goals from Steve Brooker (2), Marcus Stewart and Scott Murray put the Robins 4-0 up, before Nathan Lowndes and Mickey Bell replied.