Career
He is a single-time Olympian (2004), and a two-time Universiade finalist (2003 and 2005). He currently holds a Ukrainian record of 7:21.42 in the 4×200 m freestyle relay at the 2005 FINA World Championships in Montreal, Canada. Teaming with Serhiy Fesenko, Serhiy Advena, and Dmytro Vereitinov in heat one, Kokosha swam a second leg and recorded a split of 1:52.03, but the Ukrainians settled for sixth place and twelfth overall, in a final time of 7:24.13.