Vanden v. Sheldon is correct, the last game of the evening at 9.
Other than that, it's awful hard to find anything.
I have figured out a few, using MaxPreps schedules and a lot of hunting...
1:30 is Whitney v. El Cerrito
3:00 is Del Oro v. Edison
4:30 is probably Elliot Christian v. Benicia
7:30 is St. Pat's-St. Vincent v. Christian Brothers
9:00 is Vanden v. Sheldon, which should be a real barnburner. (Of course, I thought that about Salesian v. Freedom, but boy was I wrong...)
I'm sure there's a 6:00 game, but I can't spot that matchup. West Campus, Sacramento and Pleasant Grove are all listed as TBA at this showcase. Probably two of those face off, and the third v. somebody I can't find yet would be another game, maybe at noon.
Hopefully, someone from Sheldon will wander in here and straighten this all out.
Edit: Liberty of Brentwood appears to be the 4th Mystery Team.