Date of Birth: 
Place of Birth: Acosse, Wallonia, Belgium
About Sylvia Dethier
- Sylvia Dethier (born 20 May 1965 in Acosse) is a retired Belgian athlete who specialised in the sprint hurdles.
- She represented her country at the 1988 and 1992 Summer Olympics, as well as one outdoor and three indoor World Championships. Her personal bests are 12.98 seconds in the 100 metres hurdles (Brussels 1991) and 8.09 seconds in the 60 metres hurdles (Hoboken 1993). She has a twin sister, Françoise, who was also a hurdler.
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