2005 Tennis Masters Cup – Singles


was the defending champion, but David Nalbandian defeated him 6–7, 6–7, 6–2, 6–1, 7–6, in the final.
Mariano Puerta's Round Robin result was disqualified upon his doping charge in December 2005.

Seeds

Alternates

Draw

Finals

Red Group

Standings are determined by: 1) Number of wins; 2) Number of matches; 3) In two-players-ties, head-to-head records; 4) In three-players-ties, percentage of sets won, or of games won; 5) Steering Committee decision.

Gold Group

Standings are determined by: 1) Number of wins; 2) Number of matches; 3) In two-players-ties, head-to-head records; 4) In three-players-ties, percentage of sets won, or of games won; 5) Steering Committee decision.