A last-gasp goal from Richard Butcher saw Darlington drop their first points of the season as Notts County twice came from behind to snatch a draw.
The hosts had two early goals disallowed but Tommy Wright did give them the lead on 40 minutes.
Butcher levelled from close range on 72 minutes before Ian Miller gave the hosts the lead again with a header.
But Butcher seized on some poor defending at the death and slotted past David Stockdale in the Darlington goal.
Darlington: Stockdale, Purdie, White, Foster, Ryan, Joachim, Cummins, McBride (Miller 80), Netherthorpe (Wainwright 65), Abbott (Blundell 80), Wright.
Subs Not Used: Oakes, Harty.
Goals: Wright 40, Miller 86.
Notts County: Pilkington, Canoville (Silk 77), Tann, Hunt, McCann, Smith, MacKenzie (Somner 82), Butcher, Mayo, Weir-Daley (Parkinson 59), Dudfield.
Subs Not Used: Sam, Sandercombe.
Goals: Butcher 72, 90.
Ref: Peter Walton (Northamptonshire).