Punters will have the chance to get behind two speed machines over the coming weeks, with online bookmaker sportsbet.com.au opening a megabet for Black Caviar to win the Diamond Jubilee into Usain Bolt to win the 100m final at the London Olympics.

With both champions tipped to start at short odds, a megabet on the two has been set at $2.00.

“They are both obviously the short priced favourites and for good reason. With Black Caviar running first you would love to have the megabet going knowing that you only need Usain Bolt do what he does best and dominate in London,” said sportsbet.com.au’s Shaun Anderson.

“We expect this to be very popular and for punters to get behind these two, particularly given that Black Caviar is involved and she is taking it up to the Brits.”

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Speed Machines Megabet

$2.00 Black Caviar to win Diamond Jubilee into Usain Bolt to win the 100m final at the London Olympics