Can Joey Chestnut Repeat?

Thanks to RJ Bell from the wagering information site, Pregame.com, here is the biggest betting option on July 4th:

Nathan’s Famous Hot Dog Eating Contest WINNER:
Joey Chestnut: $1000 wins $100 (86% chance)
Any Other Eater: $100 wins $600 (14% chance)

Number of Hot Dogs eaten by the winner? Over/Under 63.5 hot dogs
[odds are a consensus from multiple Las Vegas and online sportsbooks, including Bovada and BetOnline]

For breaking Vegas stats and news, follow: www.Twitter.com/RJinVegas

Just curious, what's the most hotdogs have you ever eaten and how many do you think you could eat?