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. Finals Singles Roger Federer defeated Andre Agassi 6–3, 6–0, 6–4 It was Federer's 9th title of the year and the 17th of his career. It was his 1st career year-end championships title. Doubles Bob Bryan / Mike Bryan defeated Michaël Llodra / Fabrice Santoro 6–7(6–8), 6–3, 3–6, 7–6(7–3), 6–4 It was Bob Bryan's 5th title of the year and the 14th of his career. It was Mike Bryan's 5th title of the year and the 16th of his career. Points breakdown Singles Doubles References External links Official website Tennis Masters Cup ATP Finals Tennis tournaments in the United States Tennis Masters Cup Tennis Masters Cup 2003 in American tennis Tennis Masters 2003 in Houston November 2003 sports events in the United States