his arch-rival and reigning champ Joey Chestnut to reclaim the world hamburger eating title today at the Krystal Square Off World Hamburger Eating Championship in Chattanooga, Tenn. The 31-year-old from Japan earned a score of 93 Krystal hamburgers in eight minutes, setting a world record under a new no-dunking rule established by The Krystal Company. Chestnut, of San Jose, Calif., finished second with 81. ... kobayashi joey chestnut chattanooga krystal kso square off burger hamburger ...