For what categories do you register if you’re a master, woman, or junior?

Some events charge an extra fee to ride an extra category, and some don't.

Events that don't charge an extra fee usually allow you to select only one category during registration. If you're a master, woman or junior, then select that category and not open (if you want to ride in open).

Masters, women and juniors are then automatically included in open, but open is not automatically included in masters, women or junior.