Carmel Catholic's boys basketball team trailed by 18 points at halftime of its state tournament opener Tuesday night.
The Corsairs never quit, however, rallying to beat No. 13 CICS/Northtown 85-81 in overtime and avoid an upset.
No. 4 Carmel (13-16) advances to its own Class 3A regional final at 7 p.m. Friday against the winner of Wednesday night's game between No. 5 Alcott Coop and No. 12 Antioch.
Grant 60, Cary-Grove 45: At Lake Zurich, the fifth-seeded Bulldogs earned their 20th win of the season in the Class 4A regional semifinal.
Grant (20-8) will play No. 4 Lake Zurich in Friday's 7 p.m. final.
St. Viator 70, Vernon Hills 42: At Payton, the third-seeded Lions advanced to Friday's Class 3A regional final.
No. 14 Vernon Hills ended its season with a 5-26 record.
Notre Dame 62, Glenbrook North 56: At Libertyville, the second-seeded Dons survived a scare in the Class 4A semifinal against the No. 18 seed.
Malik Jenkins and Matt Stritzel each scored 13 points for Notre Dame, which advances to Friday's 7 p.m. final against No. 7 Niles North.