The Salem girls improved to 18-2 overall after edging visiting Loganville 45-38 on Tuesday.
"It was a defensive battle from the start," Salem coach Bill Roberts said.
The Lady Seminoles led for the majority of the game behind the play of Amber Johnson, who scored a team-high 13 points. Johnson also had six rebounds and five steals.
Salem's Precious Elkins added 10 points. Jaleen Thomas had nine points and 10 boards, while Ariel Wynter had seven points.
The victory gives the Lady Seminoles a two-game lead over Loganville for the top spot in 8-AAAA South. Salem can clinch the subregion title with a victory Friday night at Loganville.
Hart County 65, Eastside 55
At Covington, a big third period by the Lady Bulldogs turned a first half deficit into a win against Eastside on Tuesday.
The Lady Eagles (9-11 overall, 2-7 Region 8-AAA) were in total control in the first quarter as they took a 20-9 lead.
Hart County (14-6, 6-3) managed to close the gap in the second period but it was not enough as Eastside maintained a 28-24 halftime advantage.
Whatever problem the Lady Bulldogs had in the first half they were able to make the necessary adjustments as they scored 28 points to take a 52-39 lead heading into the final eight minutes.
Even though Eastside outscored Hart County in the last frame 16-10, it was not enough to outdo the 19-point edge the Lady Bulldogs had it the third.
"They had a 28-point third quarter where they rarely missed a shot. I thought we had a good offensive night, but we got beat on the glass," Eastside coach Jason Grooms said. "Hart is the most physical team that we have played and we were unable to match their physicality."
Jjade Cook led all scorers with 20 points followed by J'Quyra Moncur-Blue with nine points and 10 rebounds.
In the other girls game on Tuesday, Newton beat visiting Union Grove 51-36.
In boys action, Eastside beat Hart County 63-48, Newton lost to Union Grove 64-57 and Salem fell to Loganville 67-61.