Kenya's Brigid Kosgei smashed the women’s marathon record as she retained her Chicago title on Sunday morning.
Kosgei completed the 42-kilometer race in two hours 14 minutes 04 seconds to eclipse the 16-year-old women's marathon world record held by Paula Radcliffe of Britain.
Radcliffe set the record in 2003 at the London Marathon after recording a time of 2 hours 15 minutes 25 seconds.
The Sunday victory in Chicago adds to 25-year-old Kosgei’s win in London this year when she clocked 2 hours 18 minutes 20 seconds, becoming the youngest winner of the race.
In the men’s race, Kenyan Lawrence Cherono finished first in 2 hours, 5 minutes 44 seconds ahead of Dejene Debela of Ethiopia, who clocked 2:05:45.
Chicago Marathon defending champion Mo Farah of Britain finished eighth in 2:09:58.