Rantanen Yrjö A. (23.04.1950)

Finn Grandmaster (1981). Finnish Champion in 1978 and 1986. Nordic Senior Champion runner-up in 2011.

Best results: Eksjö 1974, 1-4^th; London 1978, 1-2^nd; Svendborg Memorial (NOR) 1979, 1^st; Jarvenpaa 1982, 1^st; Heart of Finland 2011, 1^st.
A participant in nine Olympiads between 1972 and 1990 where he was awarded an individual gold medal for the best result at board two in 1980 and two individual bronze medals for the third best results in 1972 and 1978.

Peak rating: 2465 in 1981, he was the best Finn player at that time.