You can have a schedule be public but hide the surfaces (tables or boards).
This happens when a league doesn't want to assign a specific table at a bar. They would prefer to use a first come first serve basis.
To hide the surface they play on go to Round-Robins. (Menu > Manage > Brackets/Round-Robins > Round-Robins)
1. Select the league
*Tip: Or multiple edit all leagues at the same time.
2. Pencil to edit
3. Public Visibility and Display Options.
4. Uncheck Surfaces.