IAAF Moscow, 18 Agusta, 2013

Asbel Kiprop (C) of Kenya celebrates his victory in the men's 1500 metres final of the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 18, 2013. REUTERS/Lucy Nicholson (RUSSIA - Tags: SPORT ATHLETICS TPX IMAGES OF THE DA

(Kushoto hadi kulia  Stephen Kiprotich wa Uganda akikimbia mbele ya  Peter Kimeli Some wa Kenya, Tadese Tola wa Ethiopia na Tsegay Kebede wa Ethiopia wakati wa mbiyo za marathon wanaume katika mashindano ya dunia ya IAAF wakipita mbele ya kanisa la  St Basil kwenye uwanja wa, Moscow

Eunice Jepkoech Sum wa Kenya (kushoto) akisherekea ushindi wake wa mita 800 wanawake huku Alysia Johnson Montano wa Marekani  U.S. (kulia) anaanguka kwenye mstari wa kumaliza mbiyo katika mashindano ya dunia ya riadha ya  IAAFkwenye uwanja wa  Luzhniki Moscow August 18, 2013. REU

Alysia Johnson Montano amelala chini baada ya kuankuga kwenye msatri wa kumaliza finali ya mbiyo za mita 800 wanawakwe wakati wa mashindano ya dunia ya riadha ya IAAF kwenye uwanja wa Luzhniki Moscow August 18, 2013.

Mshindi wa medali ya dhahabu Meseret Defar wa Ethiopia (kati) akiwa pamoja na mshindi wa medali ya fedha t Mercy Cherono wa Kenya (kushoto) na mshindi wa shaba Almaz Ayana wa Ethopia wakati wa mbiyo za mita 5,000 wanawake wakati wa sherehe za ushindi kwenye uwanja wa Luzhniki, Moscow.

Usain Bolt (R-L) of Jamaica finishes to win ahead of Curtis Mitchell of the U.S., Churandy Martina of the Netherlands and Jaysuma Saidy Ndure of Norway in the men's 200 metres final during the IAAF World Athletics Championships at the Luzhniki stadium in

Supporters cheer while watching a broadcast of Jamaica's Shelly-Ann Fraser-Pryce winning the women's 200 metres final during Moscow's IAAF World Athletics Championships, in Kingston August 16, 2013. Fraser-Pryce completed a brilliant world championship sp

Christian Taylor of the U.S. competes during the men's triple jump final at the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 18, 2013. REUTERS/Dylan Martinez (RUSSIA - Tags: SPORT ATHLETICS TPX IMAGES OF THE DAY) - R

Stephen Kiprotich of Uganda (C) holds a sponge as he runs through the streets of Moscow during the men's marathon at the IAAF World Athletics Championships August 17, 2013. REUTERS/Max Shemetov (RUSSIA - Tags: SPORT ATHLETICS) - RTX12ONY

Meseret Defar (R) of Ethiopia competes in the women's 5000 metres final during the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 17, 2013. REUTERS/Dylan Martinez (RUSSIA - Tags: SPORT ATHLETICS) - RTX12OTC

Gold medallist Stephen Kiprotich of Uganda (C) poses with silver medallist Lelisa Desisa of Ethiopia (L) and bronze medallist Tadese Tola of Ethiopia at the men's marathon victory ceremony during the IAAF World Athletics Championships at the Luzhniki stad

(L-R) Usain Bolt of Jamaica takes the baton from teammate Nickel Ashmeade, as Justin Gatlin of the U.S. takes the baton from teammate Rakieem Salaam in their men's 4x100 metres relay final during the IAAF World Athletics Championships at the Luzhniki stad

Athletes take part in the closing ceremony of the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 18, 2013. REUTERS/Maxim Shemetov (RUSSIA - Tags: SPORT ATHLETICS) - RTX12Q2W

Usain Bolt of Jamaica (L) crosses the finish line ahead of Justin Gatlin of the U.S. (R) to win the men's 4x100 metres relay final during the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 18, 2013. REUTERS/Dylan Martinez (RUS

Teddy Tamgho of France competes during the men's triple jump final at the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 18, 2013. REUTERS/Dominic Ebenbichler (RUSSIA - Tags: SPORT ATHLETICS) - RTX12PXP

Ezekiel Kemboi (2L) of Kenya clears an obstacle ahead of his compatriot Conseslus Kipruto (L) and Mahiedine Mekhissi-Benabbad (3R) of France during the men's 3000 metres steeplechase final of the IAAF World Athletics Championships at the Luzhniki Stadium

Mo Farah (R) of Britain produces his 'Mobot' celebration next to Isiah Kiplangat Koech of Kenya (L) after winning in the men's 5000 metres final of the IAAF World Athletics Championships at the Luzhniki Stadium in Moscow August 16, 2013. REU

Mo Farah of Britain (3rd L) competes in the men's 10,000 metres final during the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 10, 2013. REUTERS/Kai Pfaffenbach (RUSSIA - Tags: SPORT ATHLETICS) - RTX12G6U