Megumi Oshima (大島 めぐみ, Ōshima Megumi), née Tanaka (田中) (born 4 September 1975 in Kumagaya, Saitama) is a Japanese long-distance runner, who specializes in the 10,000 metres and the marathon race.
Source: “Megumi Oshima”, English Wikipedia (CC BY-SA 4.0), excerpt
