Competing for the Soviet Union in light-heavyweight and middleweight divisions he won silver medals at the 1964 and 1968 Olympics and at the 1967 European championships, losing all three finals by a close decision.

[2] Kiselyov was an aggressive southpaw boxer who won many bouts by a strong counterattacking blow to the body with his left hand.

He retired in 1968 after winning 225 of his 250 bouts, and in 1969–70 and 1975–80 was the head coach of the Soviet boxing team.

In 1972, he defended a PhD on the reliability of soldering in metal constructions (Russian: "Прочность паяных соединений в металлоконструкциях"), and from 1975 until his death in 2005 headed the Sports Department at the Bauman Moscow State Technical University, replacing the former teammate Valery Popenchenko who died in 1975.

[2] He died of a stomach cancer, aged 67, and was survived by wife Irina, two sons[1] and one daughter, Svetlana.