The 2003 Tennis Masters Cup was a men's tennis tournament played on outdoor hard courts. It was the 34th edition of the year-end singles championships and the 29th edition of the year-end doubles championships, and was part of the 2003 ATP Tour. It took place at the Westside Tennis Club in Houston, Texas in the United States from November 8 through November 16, 2003.
Roger Federer defeated Andre Agassi 6âÂÂ3, 6âÂÂ0, 6âÂÂ4
Bob Bryan / Mike Bryan defeated Michaël Llodra / Fabrice Santoro 6âÂÂ7<sup>(6âÂÂ8)</sup>, 6âÂÂ3, 3âÂÂ6, 7âÂÂ6<sup>(7âÂÂ3)</sup>, 6âÂÂ4