(T-G Photo by Gary Johnson)
The Eagles (13-5) advance to the next round in Clarksville on Wednesday at 6:45 against an opponent to be named.
After trailing 10-8 at the close of the first quarter the Eagles outscored Stewart's Creek 17-8 in the second stanza to go up 25-18 at halftime.
Harris posted a 38-30 advantage after three periods then closed out the game with a 21-8 run in the fourth quarter to claim the double-digit victory.
It was a balanced scoring effort for the winners with Michael Hayworth leading the way with a game-high 20 points, including 5-of-5 at the charity stripe.
Darius Young collected 13, Jamal Harden followed with a dozen and Camari Cannon pitched in 11, including 5-of-6 at the free throw line.
The Eagles connected on an impressive 11-of-12 shots at the foul line.
Devon Sims paced Stewart's Creek with 15 tallies.
Stewart's Creek 10 8 12 8 -- 38
Harris 8 17 12 21 -- 59
Stewart's Creek: Sims 15, Mtetwa 8, Sales 7, Brown 4, Jackson 2, Perkins 2.
Harris: Hayworth 20, Young 13, Harden 12, Cannon 11, Mason 3.
3-point goals: HMS (4): Hayworth 1, Young 1, Harden 1, Mason 1.
Halftime score: Harris 25, Stewart's Creek 18.