| Singles | |
|---|---|
| 2004 U.S. Men's Clay Court Championships | |
| 2003 Champion |  Andre Agassi |
| Champion |  Tommy Haas |
| Runner-up | Andy Roddick |
| Final score | 6–3, 6–4 |
Andre Agassi was the defending champion but did not compete that year.
Tommy Haas won in the final 6–3, 6–4 against Andy Roddick.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Andy Roddick (final) Mardy Fish (first round) Taylor Dent (first round) James Blake (quarterfinals)
Andrei Pavel (semifinals) Robby Ginepri (first round)
Luis Horna (semifinals)
Jürgen Melzer (quarterfinals)Two-time defending champion Rafael Nadal defeated Fernando González in the final, 6–2, 6–2 to win the men's singles tennis title at the 2007 Italian Open.
Tomáš Berdych defeated Ivan Ljubičić in the final, 6–3, 6–4, 3–6, 4–6, 6–4 to win the singles tennis title at the 2005 Paris Masters.
Andy Roddick defeated David Nalbandian in the final, 6–1, 6–3 to win the men's singles tennis title at the 2003 Canada Masters.
Guillermo Cañas defeated Andy Roddick in the final, 6–4, 7–5 to win the men's singles tennis title at the 2002 Canada Masters.
Fernando González was the defending champion but lost in the first round to Michal Tabara.
Andy Roddick was the defending champion and won in the final 7–6(11–9), 6–3 against Pete Sampras.
Andy Roddick was the defending champion but lost in the final 3–6, 6–3, 6–4 against Andre Agassi.
Juan Carlos Ferrero defeated Carlos Moyá in the final, 7–5, 6–3, 6–4 to win the singles tennis title at the 2002 Monte Carlo Masters.
Marat Safin defeated Lleyton Hewitt in the final, 7–6(7–4), 6–0, 6–4 to win the singles tennis title at the 2002 Paris Masters. It was his second Paris Masters title.
Félix Mantilla defeated Roger Federer in the final, 7–5, 6–2, 7–6(10–8) to win the men's singles tennis title at the 2003 Italian Open.
Juan Carlos Ferrero defeated Nicolás Massú in the final, 6–3, 6–4, 6–3 to win the singles tennis title at the 2003 Madrid Open.
Tim Henman defeated Andrei Pavel in the final, 6–2, 7–6(8–6), 7–6(7–2) to win the singles tennis title at the 2003 Paris Masters.
Rafael Nadal defeated Guillermo Coria in the final, 6–4, 3–6, 6–3, 4–6, 7–6(8–6) to win the men's singles title at the 2005 Italian Open. Nadal was making his tournament debut.
Roger Federer defeated Fernando González in the final, 7–5, 6–1, 6–0 to win the singles tennis title at the 2006 Madrid Open. He did not lose a single set in the entire tournament.
Andrew Ilie was the defending champion but lost in the quarterfinals to Xavier Malisse. Andy Roddick won in the final 6–2, 6–4 against Malisse, earning the first title of his career.
Thomas Enqvist was the defending champion but did not compete that year.
Mark Philippoussis was the defending champion but lost in the first round to Jonas Björkman.
The 2002 Siebel Open was a men's international tennis tournament that took place from February 25 to March 3, 2002. Greg Rusedski was the defending champion but lost in the second round to Todd Martin.
Tim Henman was the defending champion but lost in the quarterfinals to David Nalbandian.
