Blackman earned a much-needed Region 3 victory on Friday, defeating visiting Rockvale 42-14 at home.
"Our playoffs started tonight and we needed a win," Blackman coach Kit Hartsfield said. "If we can win the next two weeks against Siegel and Cookeville we'll be the four seed. "We have been through adversity this season and have come through it. We wanted to build on the Riverdale game two weeks ago."
Rockvale was plagued by mistakes, including losing a fumble on the second play from scrimmage. Blackman recovered at the Rockets' 22-yard line and Jacob Smith scored from 15 yards to make it 7-0.
The mistakes continued for Rockvale with two illegal shift penalties, but quarterback Logan Nowacki found Lamarcus Nelson for a touchdown pass to tie the game at 7-7.
Rockvale, however, finished with four turnovers and 10 penalties.
"You cannot commit turnovers and penalties like that and expect to win against Blackman on the road," Rockvale coach Rick Rice said. "It is frustrating on Fridays, but I will have to say we come in Monday ready to work and always put in a good week of practice."
Blackman score three more times in the first half, one on a run by quarterback Drew Beam and another a 75-yard pass and run by Mark Cooper.
Beam, a Tennessee baseball commit, was 7 of 12 passing for 131 yards.
Another run by Smith, this one a 14-yard burst gave the Blaze a 28-7 halftime lead.
Blackman scored twice more once on defense on a fumble return for a touchdown and a short run by Charles Gaunt.
Rockvale near the end of the game when backup quarterback Lamarious Nelson tossed a pass to Lamarcus Nelson to round out the scoring.