Going for gold in the Great Rift Valley
In Kenya's western town of Iten, known as the "Home of Champions" for drawing runners to train from around the world, athletes rise to pound the track and dirt roads at dawn.
Athletes exercise in the early morning.
Athletes exercise in the early morning.
A woman walks past a sign on a public road welcoming people to the town of Iten.
An elephant statue stands next to the Kerio View, a hotel and training camp mostly used for foreign athletes.
Athletes exercise in the early morning.
An athlete changes after early morning training in the sports ground of the University of Eldoret.
Disabled javelin thrower Nelly Jeptoo Sile, 42, demonstrates how she practices with a home made wooden javelin. Sile has been an athlete for almost 18 years. She is a mother of two children. Sile says she is regarded as the second best professional disabled javelin thrower worldwide and aims at winning first position in this year's Paralympics in Rio de Janeiro.
Egla Musop Jebichii prepares for her morning training session.
Disabled long and middle distance Kenyan runner Hillary Tarus, 26, prepares to train on a track at the Moi University campus. Tarus lost his arm in a chaff cutter when he was cutting fodder for cattle in 2010. Tarus has been training as an athlete for six years and lives in his father's farm close to Eldoret.
An athlete trains.
Athletes run on a road during a half marathon.
Athletes run through a tea plantation during a national half marathon in the Nandi Hills.
An athlete runs on a road during a half marathon.
Athletes exercise in the early morning.
Foreign athletes train in Iten.
Athletes clothing and shoes lie on the ground.
