Usain not quite a bolted on favourite!
After some fast times in the heats of the 100m, William Hill have cut the price of a new World Record being set during this summer's Games, from 3/1 to 6/4. Usain Bolt has also been cut from 4/6 to 4/7 to win the gold medal. Perhaps the biggest mover was Dwain Chambers, who was cut from 150/1 to 50/1 after emphatically winning his heat.
"Bolt won at a canter and his price has been cut slightly on the back of the fact that he does not seem to be suffering too much from the mystery ailment that has seen his form dip," said Hill's spokesman Joe Crilly.
Bolt, Blake and Powell rather ominously all won their heats and Jamaica are 3/1 to fill the 100m podium on Sunday evening.
Men's gold medal 100m:4/7 Usain Bolt; 7/4 Yohan Blake; 10/1 Tyson Gay; 12/1 Justin Gatlin; 16/1 Asafa Powell; 16/1 Ryan Bailey; 50/1 Dwain Chambers; 50/1 Richard Thompson; 80/1 Adam Gemili; 80/1 Keston Bledman; 80/1 Ngonidzashe Makusha; 100/1 BAR
New world record: 1/2 No 6/4 Yes
All Jamaican podium: 3/1
Disqualification in final: 5/4
Men's 100m World Record At The End Of The 2012 Olympic Games: 14/1 9.39 seconds or less, 2/1 9.40 to 9.49 seconds, 5/4 9.50 to 9.57 seconds, 5/2 9.58 seconds (current record)