Cheptegei sets Olympic record in 10,000m triumph
Cheptegei, the world record holder, won Friday's race at the Stade de France with a time of 26 minutes and 43.14 seconds.
The 27-year-old hung back for the majority of the race, but timed a late push to perfection with three laps remaining.
Having hit the front with around 500m remaining, Cheptegei held on to beat Ethiopia's Berihu Aregawi to the main prize.