Kendall Crute had 15 of his 18 points in the third, as the Eagles outscored the Wolverines 27-6 and put the Region 6A game out of reach in a 73-40 win.
Stephon Jelks had 22 points to lead North Cobb Christian (16-5, 9-2). Crute had 18 points and five steals, while Hunter Ware had 10 points, six assists and six steals.
Keyshawn Butts and Trey Kalina led defensively with 10 rebounds each.
Ben Snavely led Walker with 12 points.
North Cobb Christian will play Monday at Mount Pisgah Christian, while Walker will be at St. Francis.
Allatoona 80, Fairdale (Ky.) 62: The Buccaneers jumped out to a 31-12 first-quarter lead and never let up in the Kentucky King of the Bluegrass Showcase.
Daniel Fowler was 11-of-12 from the field and finished with 26 points, seven rebounds, three assists and three steals to lead Allatoona (22-0).
Bradley Brevett added 14 points for the Buccaneers, who will face Iroquois, the No. 9-ranked team in Kentucky, today.
Walker 51, North Cobb Christian 41: Collier Middleton had a double-double to lead the Lady Wolverines to a Region 6A victory.
Walker (7-13, 3-6) had a 26-21 lead at the half, but it put the game away with a 14-3 run in the third quarter.
Middleton finished with 10 points and 10 rebounds. Amitha Muthiah and Annabelle Mathis each had eight points.
Moriah Hidden led the Lady Eagles with a game-high 21 points, while Gaby Mills added eight.