The Rebels (10-5) will travel to meet Elizabethton on Tuesday at 7:30 p.m. in the semifinals.
The Cougars (4-8) got on the scoreboard first when Jacob Kisner slipped a ball passed South goalkeeper Aaron Stokes in the 22nd minute.
All that did was light a fire under the South offense, and the Rebels went to work.
Ramos knotted the score at 1 on a penalty kick in the 25th minute. Three minutes later, South took the lead for good when Carter Gibson headed a ball over the outstretched hands of Central keeper Izzy Hamelryck.
Luke Pollack gave the Rebels a 3-1 advantage when he scored on an assist from Ramos. In the 39th, Ramos added his second goal and South went to the halftime break with a comfortable 4-1 lead.
“I wasn’t real happy with the first 20 minutes of the game,” said South coach Keith Parker. “We lacked that extra drive that could have resulted in a couple of more goals.”
The Rebels got Parker’s halftime message and blew open the game in next first 20 minutes.
Andrew Noah tallied two minutes into the second half on an assist from Ramos. Five minutes, later, Joseph Rutherford made the advantage 6-1.
Ramos added another goal in the 51st minute, and Ayden Hale and Gibson closed out the scoring.
Ramos, an exchange student from Spain, could have scored at least twice more, but when defenders converged on him, he craftily found an open teammate.
“This is a team game,” he said. “To be successful we have to involve everyone. I thought we did a better job of that in the second half.”
“It was tough for us out there,” said Central coach John Rutherford. “South is well coached and well organized. They had a good game plan and executed it well.”