Contestants have hit the scales ahead of the annual July Fourth hot dog eating contest at Coney Island’s Nathan’s Famous. Reigning champion Joey Chestnut joined past winners at the weigh-in Friday ahead of the 99-year-old Independence Day boardwalk tradition. The dogs will be served Saturday morning. Chestnut, who broke a world record in 2013 when he scoffed down 69 soggy dogs in 10 minutes, tipped the scales at a hearty 230 pounds. New Zealand native Nela Zisser, at 114 pounds, says she can out-eat her male counterparts.