Date of Birth: 
About Yukiko Okamoto (athlete)
- Yukiko Okamoto, also known as Sachiko Okamoto, (Japanese: ????; born 29 November 1974) is a retired Japanese runner who specialized in the half marathon and marathon. At the 1990 World Cross Country Championships she finished eighteenth in the junior race, and won a silver medal in the team competition.
- At the 1995 World Cross Country Championships she finished fifteenth in the senior race and ended fourth in the team competition.
- She also won a bronze medal at the 1996 World Road Relay Championships. She later finished ninth at the 1998 World Half Marathon Championships and eighth at the 2000 World Half Marathon Championships.
- These two championships ended with a fifth place and silver medal, respectively, in team competition. Okamoto became Japanese champion once, in the 10,000 metres in 2000.Her personal best times were 15:27.77 minutes in the 5000 metres, achieved in June 1996 in Nishinomiya; 32:06.42 minutes in the 10,000 metres, achieved in October 2000 in Sendai; 1:09:12 hours in the half marathon, achieved in March 2000 in Yamaguchi; and 2:26:21 hours in the marathon, achieved in March 2001 in Nagoya.
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