Doris Chepkwemoi Changeywo is a Kenyan professional long-distance runner who specialises in the 10,000 metres and cross country running.

At the 2007 Military World Games, the track and field events were held at the G. M. C. Balayogi Athletic Stadium in Hyderabad, India from 15 – 18 October 2007. A total of 36 events were contested, of which 22 by male and 14 by female athletes. Kenya topped the medal table with five gold medals and a total of 12 – the track and field competition accounted for all of the African nation's medals at the games, which brought them sixth place on the overall games medal count. Russia took second with four golds and eight silvers, having the joint greatest medal total. Poland, the People's Republic of China, and Saudi Arabia also achieved four gold medals. Athletes from thirty three of the participating countries reached the podium at the four-day competition organised by the Conseil International du Sport Militaire, which had no obvious dominant nation.