Yumi Maruyama (née Egami, Japanese: 丸山 由美; born 30 November 1957) is a Japanese former volleyball player who competed at the 1984 Summer Olympics in Los Angeles and the 1988 Summer Olympics in Seoul. In 1984, Maruyama was a member of the Japanese team that won the bronze medal at the Olympic tournament. Four years later, she finished fourth with the Japanese team at the 1988 Olympic tournament.
Source: “Yumi Maruyama”, English Wikipedia (CC BY-SA 4.0), excerpt