After several years training judo, Urita joined mixed martial arts organization Kingdom Ehrgeiz, where he was put under Hidetada Irie.

Thanks to a work agreement between Seikendo and Pancrase, Urita went to compete in the latter, fighting Keiichiro Yamamiya and Izuru Takeuchi to decision and knocking out Riki Fukuda.

They feuded with a coalition composed by Gran Hamada, Sammy Lee, Jr. and Kendo Nagasaki, as well as All Japan Pro Wrestling's Minoru.

He participated in the B1 Climax 2009 Block A, facing star Yuki Ishikawa and Yuta Yoshikawa in losing efforts, though getting victories over Keita Yano and Ryuji Walter.

Shark faced personally Onita's henchman Ichiro Yaguchi, with Urita coming victorious in a single match, his last apparition in the promotion.