ハワイ・ウィンターリーグ
Duda was selected by the New York Mets in the seventh round of the 2007 Major League Baseball draft, as the 243rd overall selection. He began his professional career in 2007 with the Single-A Brooklyn Cyclones of the Short Season Single-A New York–Penn League, where he batted .299, with 32 runs batted in, 32 runs, and 4 home runs. During the following winter, he played on the Waikiki BeachBoys of Hawaii Winter Baseball, batting .340, with 13 runs batted in, 12 runs, and 3 home runs. In 2008, he played for the St. Lucie Mets of the Single-A Florida State League, where he batted .263, with 66 runs batted in, 58 runs, 11 home runs. For the 2009 season, Duda was promoted to the Double-A Binghamton Mets, where he batted .281, with 53 runs batted in, 49 runs, and 9 home runs. During the fall of 2009, Duda played for the Surprise Saguaros of the Arizona Fall League, where he in 5 at bats batted .400, with 2 runs batted in and no home runs.