Spain's Jesus Angel Garcia competes in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Spain's Jesus Angel Garcia competes in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui competes in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Ukraine's Ivan Banzeruk competes in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

(From L to R) Italy's Nicole Colombi, Spain's Julia Takacs, Ecuador's Paola Viviana Perez and Ecuador's Magaly Bonilla compete in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

An athlete is transported off the track for the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui competes in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China fans cheer on their team in the Men's and Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Sweden's Ato Ibanez (L) and China's Niu Wenbin compete in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki competes in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts as he wins the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts as he wins the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts as he wins the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts as he wins the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts as he wins the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts after winning the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts after winning the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Portugal's Joao Vieira holds his national flag after finishing second in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui crosses the finish line to win the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui crosses the finish line to win the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui holds her national flag after winning the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui holds her national flag after winning the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Liang Rui crosses the finish line to win the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Li Maocuo reacts after finishing second in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

China's Li Maocuo reacts after finishing second in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Canada's Evan Dunfee holds his national flag after finishing third in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki holds his national flag after winning the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki (L) holds his national flag after winning the Men's 50km Race Walk final, as Portugal's Joao Vieira (C) and Canada's Evan Dunfee walk toward the finish line to finish second and third respectively, at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Italy's Eleonora Giorgi holds her national flags after finishing third in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts after winning the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Japan's Yusuke Suzuki reacts after winning the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Italy's Eleonora Giorgi holds her national flag after finishing third in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Italy's Eleonora Giorgi reacts after finishing third in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Italy's Eleonora Giorgi reacts after finishing third in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

An athlete is helped to cool down after competing in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Italy's Eleonora Giorgiholds her national flag after finishing third in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Ireland's Brendan Boyce reacts as he crosses the finish line in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Italy's Eleonora Giorgi reacts after finishing third in the Women's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Poland's Rafal Augustyn receives medical attention in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Sweden's Ato Ibanez receives medical attention in the Men's 50km Race Walk final at the 2019 IAAF World Athletics Championships in Doha on September 29, 2019. (Photo by MUSTAFA ABUMUNES / AFP)

Sweden's Angelica Bengtsson prepares to compete in the Women's Pole Vault final at the 2019 IAAF World Athletics Championships at the Khalifa International Stadium in Doha on September 29, 2019. (Photo by Kirill KUDRYAVTSEV / AFP)

Sweden's Angelica Bengtsson prepares to compete in the Women's Pole Vault final at the 2019 IAAF World Athletics Championships at the Khalifa International Stadium in Doha on September 29, 2019. (Photo by Kirill KUDRYAVTSEV / AFP)

USA's Jennifer Suhr prepares to compete in the Women's Pole Vault final at the 2019 IAAF World Athletics Championships at the Khalifa International Stadium in Doha on September 29, 2019. (Photo by Kirill KUDRYAVTSEV / AFP)

USA's Jennifer Suhr prepares to compete in the Women's Pole Vault final at the 2019 IAAF World Athletics Championships at the Khalifa International Stadium in Doha on September 29, 2019. (Photo by Kirill KUDRYAVTSEV / AFP)

dpatop - 29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Carl Dohmann from Germany in action. Photo: Oliver Weiken/dpa

dpatop - 29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. The Italian Michele Antonelli lies exhausted on the asphalt at the finish line. Photo: Oliver Weiken/dpa

Tomohiro Noda (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Tomohiro Noda (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

?? Masumi Fuchise (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Women's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Renaud LAVILLENIE (FRA) disappointed. Pole vault Qualification of the men, on 28.09.2019 World Athletics Championships 2019 in Doha / Qatar, from 27.09. - 10.10.2019. | Usage worldwide

Raphael HOLZDEPPE (Germany), showing thumb, after above, pole vault qualification of the men, on 28.09.2019 World Championships 2019 in Doha / Qatar, from 27.09. - 10.10.2019. | Usage worldwide

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. The Japanese Yusuke Suzuki celebrates his victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics, IAAF World Championship at the Corniche: 50km walking, men, final. Yusuke Suzuki from Japan celebrates victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics, IAAF World Championship at the Corniche: 50km walking, men, final. Yusuke Suzuki from Japan celebrates victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics, IAAF World Championship at the Corniche: 50km walking, men, final. Yusuke Suzuki from Japan celebrates victory. Photo: Oliver Weiken/dpa

Christoph HARTING (Germany) in the focus of the photographers Discus throw Qualification of the men, on 28.09.2019 World Championships 2019 in Doha / Qatar, from 27.09. - 10.10.2019. | Usage worldwide

Christoph HARTING (Germany), 14th place, sits on the gang. Discus throw Qualification of the men, on 28.09.2019 World Athletics Championships 2019 in Doha / Qatar, from 27.09. - 10.10.2019. | Usage worldwide

Christoph HARTING (Germany), 14th place, sits on the gang. Discus throw Qualification of the men, on 28.09.2019 World Athletics Championships 2019 in Doha / Qatar, from 27.09. - 10.10.2019. | Usage worldwide

190929 -- DOHA, Sept. 29, 2019 -- Christian Coleman of the United States celebrates after the men s 100m final at the 2019 IAAF World Championships in Doha, Qatar, Sept. 28, 2019. SPQATAR-DOHA-IAAF WORLD ATHLETICS CHAMPIONSHIPS-MEN S 100M LixGang PUBLICATIONxNOTxINxCHN

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. The Japanese Yusuke Suzuki celebrates his victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. The Japanese Yusuke Suzuki celebrates his victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Yusuke Suzuki from Japan in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Maryan Zakalnytskyy from Ukraine must be treated at the finish. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. The Italian Michele Antonelli lies exhausted on the asphalt at the finish line. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics, IAAF World Championship at the Corniche: 50km walking, men, final. Carl Dohmann from Germany crosses the finish line. Photo: Oliver Weiken/dpa

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Rui Liang from China celebrates victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Rui Liang from China celebrates victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Rui Liang from China celebrates victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Carl Dohmann from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Athletes in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Ivan Banzeruk from Ukraine in action. Photo: Oliver Weiken/dpa

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Athletics Championships Doha 2019 Men's 50km Race Walk at Corniche in Doha, Qatar. (Photo by MATSUO.K/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Athletics Championships Doha 2019 Men's 50km Race Walk at Corniche in Doha, Qatar. (Photo by MATSUO.K/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Athletics Championships Doha 2019 Men's 50km Race Walk at Corniche in Doha, Qatar. (Photo by MATSUO.K/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Athletics Championships Doha 2019 Men's 50km Race Walk at Corniche in Doha, Qatar. (Photo by MATSUO.K/AFLO SPORT)

General view, SEPTEMBER 29, 2019 - Athletics : IAAF World Athletics Championships Doha 2019 Women's 50km Race Walk at Corniche in Doha, Qatar. (Photo by MATSUO.K/AFLO SPORT)

Tomohiro Noda (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

Yusuke Suzuki (JPN), SEPTEMBER 29, 2019 - Athletics : IAAF World Championships Doha 2019 Men's 50km Race Walk at Khalifa International Stadium in Doha, Qatar. (Photo by YUTAKA/AFLO SPORT)

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Athletes in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Faying Ma from China in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking. Athletes in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Havard Haukenes (l) from Norway and Qin Wang from China in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Johann Diniz from France in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Maryan Zakalnytskyy from Ukraine must be treated at the finish. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Carl Dohmann from Germany crosses the finish line. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: world championship, 50 km walking, women. Rui Liang from China in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. The Japanese Yusuke Suzuki celebrates his victory. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Carl Dohmann from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Nathaniel Seiler from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Marc Mundell from South Africa in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Jonathan Hilbert from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Jonathan Hilbert from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Jonathan Hilbert from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Nathaniel Seiler from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Nathaniel Seiler from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Nathaniel Seiler from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Carl Dohmann (M) from Germany in action. Photo: Oliver Weiken/dpa

29 September 2019, Qatar, Doha: Athletics: World Championship, 50 km walking, men. Nathaniel Seiler from Germany tilts water over her head to cool down. Photo: Oliver Weiken/dpa

DOHA, QATAR - SEPTEMBER 28: Fans are seen as they arrive to support their countries during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Fans are seen as they arrive to support their countries during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Fans are seen as they arrive to support their countries during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Fans are seen as they arrive to support their countries during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Fans are seen as they arrive to support their countries during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Light shows are seen during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Light shows are seen during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Light shows are seen during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Light shows are seen during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Fans are seen as they arrive to support their countries during the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Alina Reh (R) of Germany competes in the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Natasha Wodak (2nd L) of Canada of Germany and Camille Buscomb (R) of New Zealand competes in the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Alina Reh (R) of Germany competes in the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: First place winner Sifan Hassan of Netherlands is seen after the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Senbere Teferi of Ethiopia is seen after the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Hellen Obirib (R) of Kenya competes in the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

DOHA, QATAR - SEPTEMBER 28: Third placed Agnes Jebet Tirop of Kenya is seen after winning the Women's 10000m final within the 17th edition of the IAAF World Athletics Championships at Khalifa International Stadium in Doha, Qatar on September 28, 2019. Serhat Cagdas / Anadolu Agency/ABACAPRESS.COM

Poland's Joanna Fiodorow celebrates with the national flag after finishing second in the Women's Hammer Throw final at the 2019 IAAF World Athletics Championships at the Khalifa International stadium in Doha on September 28, 2019. (Photo by Antonin THUILLIER / AFP)

Raevyn Rogers, of the United States, wins a women's 800 meter semifinal at the World Athletics Championships in Doha, Qatar, Saturday, Sept. 28, 2019. (AP Photo/Petr David Josek)

Raevyn Rogers, of the United States, wins a women's 800 meter semifinal ahead of Winnie Nanyondo, of Uganda at the World Athletics Championships in Doha, Qatar, Saturday, Sept. 28, 2019. (AP Photo/Petr David Josek)

Raevyn Rogers, of the United States, prepares to start a women's 800 meter semifinal at the World Athletics Championships in Doha, Qatar, Saturday, Sept. 28, 2019. (AP Photo/Petr David Josek)

Raevyn Rogers, of the United States, leads a women's 800 meter semifinal at the World Athletics Championships in Doha, Qatar, Saturday, Sept. 28, 2019. (AP Photo/Hassan Ammar)

Yongli Wei, of China, and Gorete Semedo, of S?Lo Tom?? And Pr??ncipe, compete in a women's 100 meter heat at the World Athletics Championships in Doha, Qatar, Saturday, Sept. 28, 2019. (AP Photo/Petr David Josek)

Ajee Wilson, of the United States, crosses the finish line ahead of Rababe Arafi, of Morocco, left, and Hedda Hynne, of Norway, right, in a women's 800 meter race semifinal during the World Athletics Championships in Doha, Qatar, Saturday, Sept. 28, 2019. (AP Photo/Martin Meissner)