Valentin Djyma lives in Sumy . He started biathlon in 1981. He benefited from the reorganization of the post-Soviet structures with a dozen new national associations, as he had not been able to assert himself internationally against the strong internal Soviet competition until then. For the newly created Ukrainian national team, he was one of the top performers from the start. He made his international debut at the beginning of the 1992/93 season in Pokljuka in the Biathlon World Cup , where he was 62nd in the sprint and 32nd in the individual. At the interim Olympic World Championships in Borovets in 1993 , he was used for the first time in a major event and was fifth on the side of Vitaliy Mohilenko , Toras Dolniy and Ivan Maksymov with the Ukrainian relay. In the further course of the season Dschyma won the first World Cup points in Östersund as 17th in a sprint. It was also the best individual result in the Ukrainian's career. The high point of his career was his participation in the 1994 Olympic Games in Lillehammer . In the sprint Jyma was 40th, in the relay race he finished 15th with Vitaliy Mohilenko, Toras Dolniy and Roman Swonkow and with a penalty loop he also had a personal share in the bad position for Ukraine. At the European Championships in 1995 in Le Grand-Bornand , he won the bronze medal together with Ruslan Lyssenko , Swonkow and Popow behind the relays from Belarus and Germany. The last international championships were the 1995 World Championships in Antholz , where he was 71st in the sprint and 54th in the individual. He contested his last international race at the start of the 1995/96 season in Östersund.