2003 U.S. Men's Clay Court Championships – Singles

Singles
2003 U.S. Men's Clay Court Championships
2002 Champion Andy Roddick
Champion Andre Agassi
Runner-up Andy Roddick
Score3–6, 6–3, 6–4
Draw32
Seeds8

The 2003 U.S. Men's Clay Court Championships – Singles was an event of the 2003 U.S. Men's Clay Court Championships professional tennis tournament played on outdoor clay courts at the at the Westside Tennis Club in Houston, Texas in the United States and was part of the International Series of the 2003 ATP Tour. The tournament was held from April 21 through April 27, 2006. The singles draw comprised 32 players and eight of them were seeded. Second-seeded Andy Roddick was the defending champion but lost in the final 3–6, 6–3, 6–4 against first-seeded Andre Agassi.

Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

  1. Andre Agassi (champion)
  2. Andy Roddick (final)
  3. James Blake (quarterfinals)
  4. Taylor Dent (first round)
  5. Vince Spadea (second round)
  6. Jan-Michael Gambill (first round)
  7. Robby Ginepri (withdrew because of a right hand injury)
  8. Hyung-Taik Lee (first round)

Draw

Key

First round Second round Quarterfinals Semifinals Final
1 A Agassi 6 6  
  Ž Krajan 2 0   1 A Agassi 6 6  
  B Vahaly 3 77 3   I Labadze 2 0  
  I Labadze 6 62 6 1 A Agassi 6 6  
  A Sá 62 0   Q R Mello 0 1  
Q R Mello 77 6   Q R Mello 78 6  
  T Martin 6 6     T Martin 66 1  
8 H-T Lee 3 4   1 A Agassi 6 6  
4 T Dent 6 64 3   J Melzer 4 1  
  J Melzer 4 77 6   J Melzer 5 6 6
WC T Blake 65 1     K Carlsen 7 3 4
  K Carlsen 77 6     J Melzer 7 2 7
Q S Roitman 3 3     M Fish 5 6 5
  M Fish 6 6     M Fish 6 6  
  L Horna 6 6     L Horna 2 4  
6 J-M Gambill 2 4   1 Andre Agassi 3 6 6
LL C Mamiit 3 1   2 Andy Roddick 6 3 4
  F Saretta 6 6     F Saretta 2 0  
  O Mutis 61 6 6   O Mutis 6 6  
WC H Armando 77 4 1   O Mutis 6 63 6
  A Sávolt 6 6   3 J Blake 4 77 1
  N Kiefer 3 2     A Sávolt 2 62  
  A Waske 4 4   3 J Blake 6 77  
3 J Blake 6 6     O Mutis 6 1 2
5 V Spadea 6 6   2 A Roddick 4 6 6
Q J Brasington 3 3   5 V Spadea 6 66 3
  J Gimelstob 2 4     F Meligeni 4 78 6
  F Meligeni 6 6     F Meligeni 3 6 4
  T Enqvist 1 67   2 A Roddick 6 4 6
Q P Goldstein 6 79   Q P Goldstein 5 4  
WC J Morrison 3 1   2 A Roddick 7 6  
2 A Roddick 6 6