Maria Brasel had 11 assists and Lincoln Brasel had 10 kills in the win. South Central plays Altamont at 2 p.m. and Windsor at 3 p.m.
Cowden-Herrick's Haven Lorton tallied five kills across two games, while Jensyn Morrison had five kills, an ace and a block.
The Hornets play in the bronze flight, taking on Beecher City at 11 a.m. and St. Elmo/Brownstown at 12 p.m.
Comets cruise in Pool AStew-Stras' night was delayed by two three-set affairs, but the Comets won both their matches and punched their ticket to the gold flight.
The top-seeded Comets took care of Windsor in their first NTC tournament match 25-14, 25-20, and then downed St. Elmo/Brownstown 25-23, 25-19.
"In the first game (against St. Elmo), we were just killing ourselves," said Stew-Stras coach Ronda Schlechte. "We questioned everything we did before we did it, so we were late for everything.
"(But) we were able to swing hard and put the ball down, instead of paying it safe."
Now, the Stew-Stras Comets enter their final two conference tournament matches with wins over both St. Anthony and Neoga in their pockets.
Stew-Stras plays Neoga at 5 p.m. and then faces St. Anthony at 7 p.m. tonight at the Enlow Center.
"It's going to be a tough day in general," Schlechte said. "I talked to the girls after the games were over with, that we'll have to come in with a whole different mindset for tomorrow."
Windsor battled the St. Elmo/Brownstown Eagles in the third game at the Enlow Center, and the Blue Devils held on for a big 23-25, 25-17, 26-24 victory to advance to silver flight play.
Statistics from the three Pool A games were not made available as of press time due to the two long matches.
The Blue Devils face Altamont at 1 p.m. and South Central at 3 p.m. St. Elmo/Brownstown moves to the bronze flight, taking on Beecher City at 10 a.m. and Cowden-Herrick at 12 p.m.