Doncaster Rovers 3-3 Hull City
A brace from Tigers top scorer Mallik Wilks saw Rovers go 2-0 behind after 24 minutes.
An Omar Bogle penalty after Wilks fouled Josh Sims inside the box saw Doncaster reduce the deficit again.
The visitors faced a minimum of seven minutes added time and had to finish with 10 men after an injury to Honeyman.
Coppinger is retiring at the end of the season, and Rovers wore a charity kit he designed to commemorate his 17 seasons with the club.
The 40-year-old marked the occasion in style with a stunning free-kick past Matt Ingram in the 12th minute of stoppage-time.
MK Dons 4-3 Northampton Town
Ryan Watson equalised against his former team after the restart, and Northampton retook the lead with 12 minutes remaining through Peter Kioso.
However, Cameron Jerome and Charlie Brown struck late as the hosts turned the game around again and claimed all three points.
Burton Albion 0-3 Sunderland
Sunderland climbed into the play-off places with a resounding win against Burton Albion at the Pirelli Stadium.
Grant Leadbitter put them ahead after six minutes with a well-placed finish into the bottom left corner before Lynden Gooch's effort went in off the crossbar to make it 2-0.
Charlie Wyke continued his excellent form for the Black Cats with a smart finish to put the result beyond doubt.
Peterborough United 3-0 AFC Wimbledon
After both sides failed to break the deadlock in the first half, Sammie Szmodics scored a quickfire brace to put Posh in the ascendancy.
Jonson Clarke-Harris netted his 20th of the season and Peterborough's third of the afternoon late on, as Darren Ferguson's men go above Hull into second-place.
Wigan Athletic 1-2 Lincoln City
The Latics got the opener 33 minutes in with a brilliant strike into the top right corner from Callum Lang.
Anthony Scully levelled for the Imps a minute later, and they completed the comeback in the second half. Jorge Grant played a perfect pass to Tom Hopper, who cut inside before curling the ball beautifully past Jamie Jones.
Swindon Town 2-1 Crewe Alexandra
The visitors took the lead after five minutes through Tom Lowery, but an own goal from Travis Johnson meant their advantage was short-lived.
Crewe's wastefulness was punished in the 94th minute when Scott Twine won it for the Robins.
Accrington Stanley 1-1 Shrewsbury Town
Accrington Stanley dropped to seventh place after failing to see out a one-goal lead against Shrewsbury Town.
Seamus Conneely put the hosts ahead after half-time with a brilliant volley from just inside the box.
The Shrews equalised with 13 minutes remaining when a corner was flicked on to former Stanley man Shaun Whalley, who finished smartly from close range.
Portsmouth 0-1 Blackpool
Blackpool made it four wins out of five after beating fifth-placed Portsmouth at Fratton Park.
Pompey somehow didn't go ahead in the first half when Marcus Harness and Rasmus Nicolaisen saw their efforts blocked.
Portsmouth goalkeeper Craig MacGillivray made two good saves to deny Elliot Embleton and Luke Garbutt with 10 minutes remaining.
The Seasiders won it soon after when Jerry Yates benefited from the referee playing advantage and ran forward before firing home.
Gillingham 2-0 Bristol Rovers
The visitors came close to leading in the first half, with Luke McCormick and Brandon Hanlan hitting the woodwork.
Akinde got the opener in the 67th minute when he got in behind the Gas' defence and finished well past Joe Day.
After winning and missing a penalty six minutes later, he scored again in stoppage-time to secure the win.
Fleetwood Town 1-1 Charlton Athletic
Charlton Athletic somehow left Highbury Stadium with a point despite Fleetwood Town having 22 attempts at goal.
Before Town's dominance began, Lee Bowyer's men took the lead through a Jayden Stockley header.
Paddy Madden equalised before half-time after a one-two in the build-up between Mark Duffy and Kyle Vassell.
Vassell and Madden had chances to win it for Town in the second half, but it was ultimately a frustrating afternoon for Simon Grayson's side.
Ipswich Town 0-0 Oxford United
The closest they came to getting the opener was in the 53rd minute when James Norwood hit the post.
Rochdale 0-0 Plymouth Argyle
The visitors almost went ahead early on through Panutche Camara, but he was denied by a brilliant save from Gavin Bazanu.
Aaron Morley's long-range effort forced Jake Cooper into a stunning stop with 20 minutes left as Dale looked for a winner.
Plymouth will still be hopeful of a play-off place, while Rochdale's focus is on avoiding the drop.