Oxford United, Chesterfield and Fleetwood Town have all won their respective matches in League Two to maintain their positions in the table.
Dave Kitson's injury-time header saw United get the better of Dagenham & Redbridge 2-1 at home to stay one point clear of Chesterfield at the top.
The Spireites took the lead after just nine minutes against Plymouth Argyle at home when Matty Brown headed in from close range and Marc Richards doubled the advantage with a 42nd-minute penalty.
Brown was sent off on 64 minutes for bringing down Caolan Lavery inside the Chesterfield area, but Reuben Reid saw his spot kick saved.
Fleetwood also registered a narrow 2-1 victory on Saturday, Mark Roberts turning in from close range against Rochdale at Spotland in the 83rd minute for the winner.
It's congested in the playoff zone as Newport County, Scunthorpe United and Burton Albion are all on 34 points from 20 matches.
Newport won 2-0 at Portsmouth in what was Richie Barker's first game in charge of Pompey, Scunthorpe conceded a late goal at 10-man Wycombe Wanderers to draw 1-1 and Burton shared the spoils with York City at home.
Southend United are a point behind Burton in seventh place with 33 points, having gone down 1-0 to bottom-side Torquay United, John Marquis with the decisive goal in the 50th minute.
Torquay now have 18 points, as many as Northampton Town, who drew 1-1 with Bury on the road, and one fewer than Bristol Rovers, who suffered a 2-1 defeat at Morecambe.
Results in full: Accrington 2-3 Exeter, AFC Wimbledon 0-0 Mansfield, Burton Albion 1-1 York City, Bury 1-1 Northampton, Cheltenham 2-2 Hartlepool, Chesterfield 2-0 Plymouth, Morecambe 2-1 Bristol Rovers, Oxford United 2-1 Dag & Red, Portsmouth 0-2 Newport County, Rochdale 1-2 Fleetwood, Torquay 1-0 Southend, Wycombe 1-1 Scunthorpe
