On the first day of competition at the Petrov International in Sofia, Bulgaria, Harry Lester (Akron, Ohio/Gator WC) claimed a bronze medal at 66 kg/145.5 lbs., the only U.S. medalist for the day.    "Harry won over two Junior World champions from Georgia and Israel," said Ivan Ivanov, the coach of the USOEC Resident Team and the U.S. coach on the tour. "Harry  beat the Bulgarian ranked #2 in the nation. Harry  lost from the same Bulgarian that he beat at the duals in Colorado last month (Emilian Todorov)."    Four weight classes were contested on Saturday: 55 kg, 66 kg, 84 kg and 120 kg. The final three weight classes will be held on Sunday.    More information will be posted when received.