DOHA, QATAR - SEPTEMBER 27: Beatrice Chepkoech on her way to win gold in womens 3000m SC of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on September 27, 2019 in Doha, Qatar. (Photo by Andy Lyons/Getty Images for IAAF)

DOHA, QATAR - SEPTEMBER 28: Hellen Obiri, Rosemary Wanjiru and Agnes Tirop during day two of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on September 28, 2019 in Doha, Qatar. (Photo by Andy Lyons/Getty Images for IAAF)

DOHA, QATAR - OCTOBER 01: Ferguson Rotich wins Bronze in mens 800m day five of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 01, 2019 in Doha, Qatar. (Photo by Alexander Hassenstein/Getty Images for IAAF)

DOHA, QATAR - OCTOBER 01: Conseslus Kipruto and Benjamin Kigen during day five of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 01, 2019 in Doha, Qatar. (Photo by Alexander Hassenstein/Getty Images for IAAF)

DOHA, QATAR - OCTOBER 02: Liliand Kasait and Margret Chelimo during day six of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 02, 2019 in Doha, Qatar. (Photo by Andy Lyons/Getty Images for IAAF)

DOHA, QATAR - OCTOBER 02:Faith Kipyegon during day six of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 02, 2019 in Doha, Qatar. (Photo by Alexander Hassenstein/Getty Images for IAAF)

DOHA, QATAR - OCTOBER 06: Timothy Charuiyot wins Gold in men's 1500m during day ten of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 06, 2019 in Doha, Qatar. (Photo by Alexander Hassenstein/Getty Images for IAAF)