We have priced up Eliud Kipchoge at 4/1 to win an unprecedented third consecutive Olympic Marathon on Saturday morning.
(Odds will display when the market is available)
Kipchoge won gold at the 2016 games in Rio de Janeiro before following up with another victory in Tokyo four years later.
His personal best of 2:01:09 is the fastest in the field but the Kenyan great faces some stern opposition in what is sure to be his last Olympics.
Tokyo Marathon winner Benson Kipruto is the favourite to deny his compatriot, while London Marathon champion Alexander Mutiso Munyao completes a formidable Kenyan trio.
Current world champion Victor Kaplangat also features prominently in the betting, while Tamirat Tola of Ethiopia proved his credentials when winning the New York Marathon last year.
The home crowd will be cheering on Morhad Amdouni who has produced the fastest European time this year at 2:03:47.