In the big scheme of things, Australia and the rest of the Oceania region are little fish when it comes to Olympic power plays.

But as ONOC (Oceania National Olympic Committees) president and Australia's IOC vice-president Kevan Gosper can attest, it only takes one or two votes to turn defeat into victory.

ONOC - which includes 15 countries scattered throughout the Pacific from Guam to American Samoa, Fiji and New Zealand - will hear 15 minute submissions this weekend from delegates of the five candidate cities vying to host the 2012 Olympics.

"It's probably the last time they can pitch their talks against each other," Gosper told AAP.

"It's not so much that we're a big constituency of the Olympic movement but under today's rules they take any opportunity to make contact with IOC members who can vote.

"We have five (IOC voting member) out here of 115.

"We're not big boys, but we are a part of it.

"But from our own experience these decisions can be changed by just one voter as in the case of Sydney beating Beijing by one or two votes."

The five cities will present their final sales pitch to all IOC voting members at a meeting in Singapore on July 6 when the winner will be announced.

Paris and London have emerged from the pack as favourites but Gosper, who will stand for re-appointment as ONOC president, says the race is far from over.

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