Nancy Contreras
Nancy Yareli Contreras Reyes is a female track cyclist from Mexico, who represented her native country twice at the Summer Olympics: 1996 and 2004. She won a bronze medal in the Cycling at the 1995 [Pan American Games|1995 Pan American Games] in Mar del Plata, Argentina.
Contreras won the 500m time trial gold during the Cycling at the [1998 Central American and Caribbean Games|1998 Central American and Caribbean Games], but failed the doping control with Pseudoephedrine and her medal was removed.
Major results
;1995;1999
;2000
;2001
;2002
;2003
;2005
;2007
;2011
;2012