Kenyan Hyvin Kiyeng won bronze.
Chepkoech, the world record holder and world champion, struggled in the race.
Uganda’s Peruth Chemutai is the gold medalist in the 3,000-meter steeplechase at the Tokyo Olympics.
Chemutai gave a devastating kick to find American Courtney Frerichs in gold while Kenya’s Hvyin Kiyeng won bronze in the race.
The 9:01:45 Chemutai victory was also Uganda’s national record, and she was also the first woman from East Africa to win gold at the steeplechase Olympics since the event was added to the Beijing Summer Games program in 2008..
The humiliated Bahraini Agnes Jebet won gold at the 2016 Olympics, but has since been banned from running for the use of performance-enhancing drugs.
Frerichs spent his best season of the season at 9: 04.79 while Kiyeng was third on 9: 05.39.
World record holder Beatrice Chepkoech, who has suffered from muscle and muscle pain this season, was seventh in 9: 16.33 while Wilfred Mutile Yavi (9: 19.74), a Kenyan turned to Bahrain, was 10th when he was one of the favorites . .
Chemutai finished fourth in the 2019 World Cup defeated by Chepkoech.