Complex sentence: Proctor competes on the Professional Rodeo Cowboys Association (PRCA) and Professional Bull Riders (PBR) circuits, and he has also competed on the Championship Bull Riding (CBR) tour.
Split into simpler sentences: Proctor competes on the Professional Rodeo Cowboys Association (PRCA) and Professional Bull Riders (PBR) circuits. He has also competed on the Championship Bull Riding (CBR) tour.