| Medal record | ||
|---|---|---|
| Men's athletics | ||
Representing  Japan
| ||
| Asian Championships | ||
 |
1973 Marikina | 3000 m st. |
Takaharu Koyama (小山 隆治, Koyama Takaharu, born 8 July 1948) is a Japanese former middle distance runner who competed in the 1972 Summer Olympics and in the 1976 Summer Olympics.[1]
- ^ Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Takaharu Koyama". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 17 April 2020. Retrieved 18 May 2012.