Prep championships

GYMNASTICS Team and Individual Today: 12:15 March in; 12:30 p.m. Compulsory; 3 p.m. Optional

Where: Mt. Carmel High TENNIS Southern California Boys Regional Championships Today, Claremont Club Quarterfinals

No. 2 Canyon Crest Academy vs. No. 7 Irvine Woodbridge, 12:45 p.m.

No. 4 Bishop’s vs. No. 5 Calabasas, 11:15 a.m. Winners advance to afternoon semifinals. Finals are scheduled for 1 p.m. Saturday. Format features four singles and three doubles matches.