Tony Gray hit his first goal since the opening day of the season as AFC Telford United saw off 10-man North Ferriby United at the Bucks Head.
The Conference North high fliers had striker Nathan Jarman sent off on 22 minutes for a challenge on Chris Lever, his second bookable offence.
Gray then put the Bucks ahead five minutes with a solo effort five minutes into the second half.
Adam Farrell set up fellow sub Mike Phenix to seal victory on 82 minutes.
Liam Watson's team remain seventh in the table, three points adrift of the play-off places, after stretching their unbeaten league run to four matches.