Kenyan runner Brigid Kosgei has broken Paula Radcliffe's 16-year long women's marathon world record.
Kosgei clocked a winning time of 2.14.04 to finish comfortably inside of Radcliffe's mark of 2:15:25, set at the London 2003 marathon, to retain her Chicago title on Sunday.
The 25-year-old went through the halfway point in 1.06.59 and barely fell off the pace as she pressed on to cross the line in world-record time.
Radcliffe was present to congratulate Kosgei at the finish, with her record beaten by well over a minute.
Kosgei's achievement comes on an incredible weekend for marathon running, with her compatriot Eliud Kipchoge becoming the first man ever to break the two-hour barrier - albeit not under race conditions and therefore not a record - on Saturday.
Radcliffe relinquishes her record in what has been a rollercoaster few weeks for the former marathon champion.
The 45-year-old was widely condemned for questioning whether US Anti-Doping Agency's investigation into Alberto Salazar, who was convicted of doping offences earlier this month, was money and time well spent.
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