Mary Jepkosgei Keitany is a Kenyan former professional long distance runner. She was the world record holder in a women-only marathon, having won the 2017 London Marathon in a time of 2:17:01. As of November 2022, she placed fifth on the world all-time list at the marathon and eleventh on the respective world all-time list for the half marathon.
Keitany at the 2011 New York City Marathon
Marathon world record progression
World records in the marathon are ratified by World Athletics, the international governing body for the sport of athletics.
Kelvin Kiptum during his world record run at the 2023 Chicago marathon with 2:00:35
Mary Keitany during her women-only world record run at the 2017 London Marathon with 2:17:01
Tigst Assefa during her women's world record run at the 2023 Berlin Marathon with 2:11:53
Johnny Hayes