Along with another Soviet-Ukrainian race walker from the Sumy region, Vladimir Golubnichy, Nikolay Smaga was one of the leading race walkers in the late 1960s and early 1970s. Like his training partner and best friend Golubnichy, Smaga competed exclusively in the 20 km walk. During his career, which lasted from 1965-72, Smaga competed at two Olympic Games, winning a bronze medal in 1968 and placing fifth in 1972. Smaga was the 1971 European Champion and won bronzes at the 1966 and 1969 European Championships. He also won the 20 km at the 1967 IAAF World Race Walking Cup. At the Soviet Championships Smaga won three titles (1969-71) and two bronzes (1968, 1972). Smaga finished his sports career after the 1972 Olympics and later worked as a race walking coach, serving as coach of the 1980 Soviet Olympic race walking team.
Personal Best: 20kmW – 1-25:49 (1968).