National High School Invitational

What: A three-day basketball tournament featuring national powers, including No. 4 Montrose Christian (boys) and No. 1 Riverdale Baptist (girls), plus the DCIAA boys’ and girls’ champions (No. 7 Coolidge and No. 2 H.D. Woodson, respectively). The boys’ event has eight teams; the girls’ has four.

Where: Georgetown Prep, 10900 Rockville Pike, North Bethesda..

Tickets: $10, $5 students.

When: Boys’ quarterfinals start Thursday at 2 p.m. ; boys’ semifinals start Friday at 11:30 a.m.; girls’ semifinals start Friday at 3:30 p.m.

TV: All games on ESPN networks.

Full schedule: