Joey Chestnut was a close second at the Melbourne Central event, managing 297 of the prawn dumplings.
Fellow competitor Juliet Lee broke the world record for the number of wontons eaten in eight minutes by a female, managing 175 dumplings.
The food battle was accompanied by a performance by popular Asian girl group iMe.
Hosted by Josh Thomas, the proceeds of the competition will go to charity.
For each prawn wonton eaten by the competitors one dollar was donated to local charity Youth Projects which will use the funds to build a community kitchen for unemployed adults.
A total of 6673 wontons were consumed throughout the two week competition.