Kenya's Ruth Chepngetich put on a performance for the ages as she obliterated the women's marathon world record in Chicago.

Kenyan runner Ruth Chepngetich smashed the women's marathon world record in the Chicago Marathon. She dedicated the surprise run to a late compatriot who set the men's record last year.

Ruth Chepngetich smashed the world record by nearly two minutes at the Chicago Marathon on Sunday, winning in 2:09:56.

CHICAGO (AP) — Ruth Chepngetich of Kenya smashed the world record by nearly two minutes at the Chicago Marathon on Sunday, winning in 2:09:56.

:Kenya's Ruth Chepngetich put on a performance for the ages as she obliterated the women's marathon world record in Chicago on Sunday, taking nearly two minutes off the previous best to win in an unofficial time of two hours, nine minutes and 56 seconds.Chepngetich ditched the competition by the halfway mark

Ruth Chepngetich of Kenya won the Chicago Marathon in 2:09:56 to break the world record by nearly two minutes.