Accrington Stanley were stunned as two late Stevenage goals saw them lose a game they had dominated 3-2.
Goals from Jordan Clark and Billy Kee put Stanley ahead twice, before Matt Godden (2) and Ben Kennedy's 89th minute strike saw the home side come back to snatch all three points.
Stanley made a positive start at the Lamex Stadium as Sean McConville tested Joe Fryer, before a lovely one-touch move saw McConville tee-up Seamus Conneely but the captain's strike whistled just wide of the post.
However, the early pressure told in the 20th minute as Liam Nolan drove down the middle at the Stevenage defence, squared a ball to Clark who took a touch before slamming a low effort right across the face of goal and into Fryer's far corner - to give Coleman's side the reward their start had merited.
McConville and forward Kayden Jackson had chances to make it a quick-fire double but the latter was thwarted by a terrific Fryers diving stop.
The home side began to get a foothold in the game after the half-hour mark but for all their possession around the box couldn't work Aaron Chapman, half chances fell to Joe Martin and Matt Godden but Stanley remained good value for their slender lead at the break.
Stevenage registered the first shot on-target in the 54th minute as Tom Pett tried his luck from distance but Chapman had it covered, almost instantly down the opposite end McConville's low free-kick found Jackson who flashed a shot across goal and into the arms of Fryer.
The game burst back into life on the hour-mark as Godden sprung free inside the area to slot Stevenage level; but just moments later Jackson was brought down inside the area, referee Gavin Ward pointed to the spot and Kee made no mistake, notching his 50th Stanley goal in the process.
With six minutes remaining Godden scored his second of the match, a fine header which flew past Chapman, to send Stevenage level and as Stanley pushed for a winner they were struck the cruellest of blows as a lightning counter-attack saw Kennedy slam home the Stevenage winner.