Brigid Kosgei has made history by setting a new world record in the marathon.
Less than 48 hours after Eliud Kipchoge became the first human being to run a marathon in under two hours, yet another marker has been destroyed over the 26.2-mile distance.
Paul Radcliffe previously held the record for 16 years after her remarkable performance at the 2003 London Marathon and many questioned whether it could ever be beaten.
And while a new women-only world record was posted by Mary Keitany in 2017, the Brit's time of 2:15:25 has now been completely dismantled by almost two minutes.
That's because Kosgei romped to an astonishing time of 2:14.04 and ran at the same pace as Sir Mo Farah between the 30 and 35-kilometre stages.
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Historic race in Chicago
"When I saw how fast Brigid was running in the first half I knew it was going to be broken," Radcliffe reflected per BBC Sport.
It's been an astonishing year for Kosgei. The Kenyan was also victorious at the London Marathon and set a world best over the half marathon at the Great North Run.
Unfortunately, much like Kipchoge's marathon yesterday, that particular attempt wasn't ratified as a world record by the IAAF due to the course not meeting relevant specifications.
But there is nothing holding back Brigid's time in Chicago and in the space of one weekend, both men and women have gone faster than ever before over the marathon distance.
Bitter disappointment for Farah
In the men's event, there was bitter disappointment for Farah who - under a cloud of Alberto Salazar controversy - limped to a career-worst performance of 2:09.58.
It was Kenyan Lawrence Cherono who wrestled the Chicago Marathon title away from the Brit, out-sprinting fellow podium finishers Dejene Debela and Asefa Mengstu.
It leaves the marathon finely poised going into the 2020 Olympics and with Kipchoge hoping to retain his crown, there could be a historic scramble for gold in the Japanese capital.
But you'd be forgiven for thinking that Farah's dream streak under the five, multi-coloured circles will be coming to an end after taking a huge backwards step in Illinois.News Now - Sport News