Triple World Record Holder and Double Olympic Champion in long-distance running (5,000m and 10,000m). She is the first woman in history to break the 29-minute barrier for the 10,000m and the first woman under 14 minutes for the 5,000m on the track. Known by the nickname, "The Smiling Assassin," she also holds multiple World Cross Country titles and serves as a police officer in the Kenyan National Police Service.