Sugamata was born in Utsunomiya on November 29, 1957. After graduating from Hosei University, he joined Japan Soccer League club Hitachi in 1980. The club won the 2nd place in 1980 JSL Cup and 1982 Japan Soccer League. He retired in 1987. He played 131 games in the league. He was selected Best Eleven in 1980 and 1982).