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PartyGaming sets odds for World Open V
Dwan, in particular, is an interesting choice because he's known more for his cash game prowess than his tournament abilities.
The tournament, which takes place in London, is similar to a shootout event with winners from the preliminary round qualifying for the final table.
There is also a second chance heat for players who finish runner up in the preliminary round. The winner of the second chance heat gets the last seat at the final table.
Brits Roland De Wolfe and James Akenhead were also given a good chance by odds-makers at 14:1.
Last year Irishman Marty Smyth outlasted 71 players and then beat Neil Channing heads-up to take first place and $250,000 at the PartyPoker.com World Open IV.
PartyBets has Smyth at 15:1 to repeat as champion.