Altrincham 1-3 Barnet
Barnet beat 10-man Altrincham to keep up with leaders Bristol Rovers.
Home defender Tom Marshall was sent off for a foul on John Akinde after only four minutes, and the Bees striker converted the resulting spot kick.
Michael Gash touched in Luisma Villa's free-kick to extend their lead, before Robins midfielder Nicky Clee missed a penalty after a foul on Damian Reeves.
The hosts did make it 2-1 through a Reeves strike, but Gash sealed the win by heading in David Stephens' cross.