Nicke Kabamba struck the only goal as 10-man Barnet reached the FA Cup second round following a hard-fought victory at Curzon Ashton.
Kabamba headed in Finley Potter’s cross from close range for his 12th goal of the season with what proved the winning goal in the 15th minute.
Idris Kanu was denied a second by Curzon goalkeeper Cameron Mason but Barnet debutant Connor Stevens was sent off three minutes before half-time for a second yellow card after a foul on Will Hayhurst.
Curzon, of National League North, came close to an equaliser in first-half stoppage time when Jimmy Spencer saw his shot cleared off the line by Potter.
A stunning save from Barnet goalkeeper Laurie Walker prevented Craig Mahon from levelling with a long-range volley 10 minutes into the second half.
Callum Stead was just off target from a tight angle as Barnet, second in the National League, looked to kill the game off but they held on to extend their unbeaten run to 10 games in all competitions.
