Yes... if they want to. Also, there is the National Field Championship and National Amateur Field Championship every year to continue to train and trial for. (You may have seen the NAFC or NFC designations.) Dogs that carry these titles (especially both of them) are historic dogs. For instance 2XNAFC 3XCNAFC-FC River Oaks Corky. The CNAFC is Canadian National Amateur Field Champion. There's NFC AFC Westwind Super Nova Chief. And maybe most historic was NFC 2XNAFC Super Chief who was run by August Dupont.