Gary Roberts scored his fourth goal of the season as Sky Bet League Two leaders Chesterfield continued their fine start with a 2-0 win over AFC Wimbledon at the Proact Stadium.
Roberts opened the scoring on the half-hour after being set up by James O'Shea, then turned provider with a 53rd-minute cross from which Sam Hird headed the Spireites to their sixth win from seven games so far.
Oxford stayed second after twice coming back from behind to claim a 2-2 draw at Cheltenham.
Byron Harrison gave the home side an eighth minute lead which was cancelled out by Oxford's veteran striker Dave Kitson just past the half-hour mark.
Terry Gornell put Cheltenham back in front six minutes into the second half but Johnny Mullins equalised in the 57th minute to maintain Oxford's unbeaten start.
Fleetwood leapfrogged Wimbledon into third place in the table after coming from behind to see off Bury 2-1 at Highbury Stadium.
Tom Soares gave the visitors a surprise 28th-minute lead but Antoni Sarcevic equalised seven minutes into injury time and Gareth Evans struck what turned out to be the winner two minutes later.
Exeter also kept pace with the leading group thanks to John O'Flynn's injury-time header which earned them a 2-1 win at Northampton.
Jacob Blyth had put the Cobblers in front at Sixfields but Scot Bennett brought Exeter level with a 35th-minute effort from Craig Woodman's corner.
Newport's Tom Naylor had a day to forget as two own goals and a conceded penalty handed Morecambe a 3-2 win in Wales.
Naylor's first own goal cancelled out Billy Jones' early opener for his side and after Robbie Willmott put County back in front Naylor headed a second own goal to bring Morecambe level.
Padraig Amond scored the visitors' winner from the spot in the 71st minute after Naylor's foul on Kevin Ellison.
Hartlepool continued their recent improvement with a 2-1 win over rock-bottom Accrington Stanley at Victoria Park.
Jonathan Franks and Andy Monkhouse gave the home side a comfortable half-time advantage and James Gray's 57th-minute effort was not enough for Accrington, who are still without a win.
Goals from Ricky Holmes and Simon Ferry steered Portsmouth to a surprise 2-1 win at Burton, for whom Zander Diamond's injury-time effort proved too little, too late.
York's Richard Cresswell and Mansfield's Martin Riley saw red after clashing in the 78th minute at Bootham Crescent where the Stags came back from behind to claim a 2-1 win.
Ryan Brobbel's header had put the home side in front after just two minutes but Samuel Clucas equalised from the penalty spot before Oliver Palmer scored the winner shortly before the double sending-off.
Abu Ogogo's 10th-minute effort paved the way for Dagenham to earn their second win of the season with a 2-0 success against Bristol Rovers, with Luke Howell scoring the second late on.
Second-half goals from Sam Wood, Dean Morgan and Billy Knott saw Wycombe ease to a 3-0 win at Plymouth, while Ian Henderson scored the only goal in the 77th minute as Rochdale edged past Torquay at Spotland.