Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Roger Federer was the defending champion but lost in the third round to Mark Philippoussis. Guillermo Coria won in the final 6 3, 6 4, 6 4 against Agustín Calleri. The 2003 Hamburg Masters was a tennis tournament played on outdoor clay courts. It was the 96th edition of the Hamburg Masters and was part of the Tennis Masters Series of the 2003 ATP Tour. It took place at the Am Rothenbaum in Hamburg in Germany from May 12 through May 18, 2003.