The 23-year-old Kenyan, who set the world half marathon record in the Czech capital in April, beat her own record of 30min 04sec she had set during that race.
“I’m so happy, I thank God for making me the winner today and… (breaking) the world record,” Jepkosgei told Czech Television.
“I was very confident and I was hoping for the best,” she added, after beating compatriot Fancy Chemutai and Kenyan-born Bahrain runner Violah Jepchumba in Prague’s historic centre.
Kenyans also dominated the men’s race, with Benard Kimeli taking the honours in 27min 10sec, beating his brother Matthew and fellow Kenyan Rhonex Kipruto.
