At the age of 17, she won the 1979 European Athletics Junior Championships in Bydgoszcz with a record of 13.24 s. The result was her personal best Spoof won the 100 meters hurdles in the Finnish championship four times, in 1978, 1979, 1980 and 1982. She also won the 60 meters hurdles in the Indoor Finnish Masters four times, in 1978, 1979, 1980 and 1983.