Barnet 1-0 Kidderminster Harriers
Luisma Villa scored the only goal before being sent off late on as Barnet inflicted a first defeat in seven games on Kidderminster.
Villa scored after Harriers failed to clear a corner before receiving a 99th-minute red card for a second booking.
Harriers were without manager Steve Burr, who has been given permission to speak to Forest Green about taking charge at the New Lawn.
Graham Stack prevented Joe Lolley firing in an equaliser after the break.
Stack also pushed away Kyle Storer's powerful strike and Michael Gash went close for Harriers, when he headed over from close range.
Villa went close to doubling the lead in the second half when his shot was cleared off the line by Mickey Demitriou.