Loikkanen was the Finnish champion in 800 metres in 1979 and in the 1500 metres in 1980. In indoor competitions, he won the 1500 metres (in 1978), the 800 metres (1981) and the 1500 metres (1985).
Loikkanen was a Finnish track and field athlete who won the 800 meters in 1979 and the 1500 meters in 1980. He also won the 1500 meters indoors in 1978, the 800 meters indoors in 1981, and the 1500 meters again indoors in 1985.