Catherine Nyambura Ndereba is a retired Kenyan marathon runner. Between 2003 and 2008, she finished in the top two in five successive global championship marathons. Ndereba has twice won the marathon at the World Championships in Athletics and won silver medals at the Summer Olympic Games in 2004 and 2008, becoming Kenya's first female multi-medalist. She is also a four-time winner of the Boston Marathon and a two-time winner of the Chicago Marathon. It was at the latter in 2001 that she broke the women's marathon world record with a time of 2:18:47. Catherine Ndereba (Kenya) set the women's marathon world record of 2:18:47 in Chicago Marathon on October 7, 2001. It stood 12 months, until Paula Radcliffe's 2:17:18 on October 13, 2002. Wiki link