Hitting just three of its last eight free throw attempts, the Spartans (28-6) saw Harding Academy (25-7) get a shot to tie or win the game in the closing seconds.
But a power lay-up attempt from 6-foot-9 Lions post Luke Howard fell short, and the ball kicked out to a white jersey as time expired.
Webb held on to win this substate showdown 57-55 Sunday, Feb. 24, in Lee Athletics Center.
Next is the state tourney semifinal versus Christ Presbyterian Academy (26-10) at 1:30 p.m. CST, 2:30 p.m., EST, Friday, March 1, at Lipscomb University in Nashville.
“I’m really proud of our guys, the way we responded to their comeback,” said Spartans junior guard Emory Lanier, who scored a team-high 13 points.
Junior guards Tariq Daughton and Luke Burnett each added 12 points. Junior post Uriah Powers scored 10 before fouling out.
Despite the near collapse, “I thought we were the tougher team, for the most part,” Webb head coach Ricky Norris said.