Kobayashi won the Nathan's Famous Fourth of July Hot Dog Eating Contest six years in a row, until 2007 when Joey Chestnut did what no American had done before. Chestnut dethroned Kobayashi, beating him by three hot dogs and buns--66 to 63. Kobayashi lost to Pat Bertoletti and Joey Chestnut in the Spike TV MLE Chowdown and was unable to defend his title in the Krystal Square Off World Hamburger Eating Championship.
- Cow Brains 57 (17.7 pounds) / 15 minutes
- Rice Balls 20 pounds rice balls / 30 minutes
- Lobster Rolls 41 Lobster Rolls in Boston challenge / 10 minutes/Sept. 23, 2006