Wrexham were denied the chance to move top of the National League Table by an injury time equaliser from Sutton United's Ross Lafayette at the Racecourse.
The excellent Marcus Kelly gave the Reds a first-half lead, and Dean Keates' side looked to be on their way to securing another home victory and clean sheet.
But the visitors' late goal prevented Wrexham from securing a vital win in the top of the league encounter.
Despite the confidence and positivity surrounding Wrexham after last week's victory against Tranmere, it was the visitors that began in the ascendancy, probing in attack in the early stages.
There had been few chances, but the first came for Wrexham just before the 20 minute mark, and it was taken by Kelly. A cross from Chris Holroyd evaded Alex Reid and his marker, and fell to the midfielder, who duly dispatched past a helpless Jamie Butler.
An uninspiring opening was sparked into life by the goal, as were the fans, who had turned out at the Racecourse in increased numbers for this top of the table clash.
Having taken the lead, Wrexham began to assert their authority on the game, demonstrating all the confidence of a team on a seven-game unbeatun run.
As half-time approached, Holroyd threatened to double the lead, connecting with Paul Rutherford's cross after brilliant play by the impressive Kelly, but glancing his header wide of the post. Moments later, Reid did the same having been picked out in space in the box.
Sutton, meanwhile, were restricted to long-range efforts, most of which were blocked by Wrexham's typically resolute defence. By half-time, the Reds were well in control, while the away side were left with the unenviable task of forcing their way back into the game.
More attacking impetus was required for Sutton after the break, and they came close when a through ball was crucially intercepted by Kevin Roberts. Soon after, Luke Coddington was tested for the first time, pushing away a powerful shot.
There was a noticeable improvement from Sutton, but Wrexham remained compact to keep them at bay. That was until a ferocious effort from Kieron Cadogan struck the bar and flew over twenty minutes from time.
In response, Wrexham came within inches of adding a second goal when Kelly set through substitute Ntumba Massanka just after the 70 minute mark, but he could only place his effort wide of the post.
After weathering the storm earlier in the half, the hosts appeared to be ending the game on top, and Massanka had two more opportunities as injury time neared. First he failed to control a superb Holroyd backheel, and minutes later miscued his shot following a Rutherford cross.
And Wrexham were made to rue the missed chances when in injury time, the Racecourse was silenced by a thunderous Lafayette half-volley, which struck the underside of the bar and nestled in the back of the net.
Wrexham: Coddington, Roberts, Smith, Pearson, Jennings, Rutherford (Mackreth), Wright (Hurst), Carrington, Kelly, Holdroyd, Reid (Massanka).
Subs: Preston, Hurst, Mackreth, Massanka, Boden
Sutton United: Butler, Thomas, John, Collins, Lafayette, Bailey, Wright (Thomas), Emmanuel (Jeffery), Walton, Taylor, Downer (Cadogan).
Subs: Cadogan, Dundas, Spence, Jeffery, Thomas
Referee: Peter Wright
Wrexham: Pearson, Hurst
Sutton United: Thomas,