Mater Dei hosts a two-day January slate at the Meruelo Athletic Center. Format is showcase, not bracket — teams come in for one marquee game. Mater Dei's boys play twice over the weekend; the rest of the field is California's top programs (Orange Lutheran, Servite, Sierra Canyon, etc.) with a few national invites mixed in.
National Prep Tournament in Fort Walton Beach, Florida takes both high school and post-grad programs. Applications stay open through October 31. If you want a competitive early-March slot without invitation-only barriers, this is the one to apply for.