is the first Japanese athlete to become an Olympic taekwondo medalist, winning the bronze medal at the Sydney 2000 Summer Olympics in the 57–67 kg weight class.[1]
After beginning karate at age 12, she attended Waseda University in Tokyo. She spent her junior year of college studying abroad in the United States at the University of Oregon, where she began learning Taekwondo.
|- bgcolor="#FFBBBB"| 1993-12-19 || Loss ||align=left| Lucia Rijker || K-2 Grand Prix '93 || Tokyo, Japan || TKO (right low kick) || 2 || 0:38 || |-|-| colspan=9 | Legend:
Okamoto is a 1996 graduate of the Waseda School of Human Sciences, and currently works at Runes Kanazawa Co. Ltd. She is a Christian.[2]