United drew 1-1 at home to Doncaster Rovers on Tuesday night.
Tom Hopper gave United an early lead after a mistake in the Rovers defence saw him with an open net to shoot at.
That Hopper goal would have been the winner, until Alfie Beestin headed home in added time to rescue a point for Rovers.
The Iron started dominantly, and had a goal to show for it after only three minutes. The Rovers backline got themselves in a mess, and goalkeeper Ian Lawlor rushed out and missed the ball, meaning Hopper had the simple task of passing into the open net.
The home side were denied what looked to be a certain penalty not too long after the first, when Hopper rounded Lawlor and was brought down – but Eddie Ilderton deemed it to be a dive.
Rovers first effort of the game came when Ben Whiteman received the ball on the edge of the area, but his low first-time effort was held well by Rory Watson.
United piled forward next, and Hakeeb Adelakun’s throughball to Josh Morris ended in a stinging shot, but Lawlor was more convincing this time.
The fourth official announced there would be two additional minutes at the end of the first half. The home side would be handed one more golden opportunity, but Adelakun’s cross was headed over by Neal Bishop.
The Iron came out firing in the second half, and could have doubled their lead within minutes when Morris’ free kick was well hit, but Lawlor did well to divert it away for a corner.
Bishop was forced off on 64 minutes after he blocked a Doncaster shot, but was caught by the follow up from the Rovers man – meaning Cameron McGeehan entered the fray.
Kevin van Veen was denied superbly three minutes later when he headed goalwards from a Holmes cross, but somehow Lawlor clawed it to safety.
Watson was forced into action next as he superbly diverted Whiteman’s effort away from goal.
The game hit a rough patch with a lot of the possession in midfield, before McGeehan drove forward and saw his thirty-yard effort fly narrowly wide.
The Iron drove forward again soon after, but Ivan Toney’s headed effort from a Lee Novak cross was tame.
The fourth official announced there was be eight additional minutes at the end of the game, as United looked to hold on to their narrow lead.
Doncaster rescued a point in 95th minute when Beestin headed home after a brilliant cross from the left.
Scunthorpe United: Watson, Wallace, Ojo (C), van Veen (Novak, 72), Morris, Bishop (McGeehan, 64), Hopper (Toney, 82), Adelakun, Holmes, Goode, Burgess.
Substitutes not used: Kelsey, Townsend, Sutton, McArdle.
Doncaster Rovers: Lawlor, Baudry (Alcock, 12), Mason (Garrett, 54), Marquis, Rowe, Whiteman, Wright, Houghton (Kongolo, 80), Blair, Beestin, Coppinger (C).
Substitutes not used: Marosi, Mandeville, May, Amos.