Usain Bolt is 5/4 to win three gold medals as he prepares to begin the defence of his Olympic titles in Rio.
The Jamaican is aiming to complete the 'triple triple' of Olympic sprint titles in Brazil by retaining his 100, 200, and 4x100 metres relay crowns.
Having already taken a full set of golds home from Beijing in 2008 and London four years later, the world's fastest man is looking to bring his haul of Olympic titles to nine.
He is 6/4 to have to settle for two gold medals at these Games, 5/1 to win just one and 8/1 to miss out on a gold.
Bolt is the 4/9 favourite to take his tally to seven on Sunday night in the 100m final, when his nearest rival is 2004 champion Justin Gatlin at 9/4. Trayvon Bromell is 15/1 for gold and 23/20 for a medal, while Yohan Blake is 6/4 to make the podium.
Bolt, who has stated his intention to retire following next year's World Championships in London, overcame a fitness scare to reach the Olympics after a hamstring strain forced him to pull out of the Jamaican trials.
He blew away any injury concerns on his last appearance, however, clocking 19.89 seconds over 200m in London and insists he is in better condition this year than when he was at last year's World Championships in Beijing. It was an ominous warning to his rivals - he still left China with three gold medals.
Bolt first takes to the striking blue track at the Olympic Stadium in the 100m heats on Saturday.