| Singles | |
|---|---|
| 2003 BCR Open Romania | |
| Champion |  David Sánchez |
| Runner-up |  Nicolás Massú |
| Final score | 6–2, 6–2 |
| Draw | 32 |
| Seeds | 8 |
David Ferrer was the defending champion but lost in the first round to Galo Blanco.
David Sánchez won in the final 6–2, 6–2 against Nicolás Massú.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Nikolay Davydenko (first round) Nicolás Massú (final)
Sargis Sargsian (quarterfinals) David Sánchez (champion)
Paul-Henri Mathieu (quarterfinals) David Ferrer (first round) Fernando Vicente (first round) Alberto Martín (second round)Roger Federer defeated Rafael Nadal in the final, 2–6, 6–2, 6–0 to win the singles tennis title at the 2007 Hamburg Masters. With the win, Federer ended Nadal's record streak of 81 consecutive wins on clay, the longest single-surface win streak in the Open Era. It was Nadal's first loss on clay in over two years.
Magnus Norman was the defending champion, but did not compete this year.
Juan Carlos Ferrero was the defending champion but lost in the semifinals to Fernando Verdasco.
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.
Carlos Moyá defeated David Nalbandian in the final, 6–3, 6–3, 6–1 to win the men's singles tennis title at the 2004 Italian Open.
Roger Federer defeated the defending champion Guillermo Coria in the final, 4–6, 6–4, 6–2, 6–3 to win the singles tennis title at the 2004 Hamburg European Open.
Marat Safin defeated David Nalbandian in the final, 6–2, 6–4, 6–3 to win the singles tennis title at the 2004 Madrid Open.
Four-time defending champion Rafael Nadal defeated Novak Djokovic in the final, 6–3, 2–6, 6–1 to win the singles tennis title at the 2009 Monte-Carlo Masters.
Four-time defending champion Rafael Nadal successfully defended his title, defeating David Ferrer in a rematch of the previous year's final, 6–2, 7–5, to win the singles title at the 2009 Barcelona Open. It was his record-extending fifth title at the Barcelona Open.
Mariano Puerta was the defending champion but did not compete that year.
Félix Mantilla was the defending champion but did not compete that year.
Lleyton Hewitt was the defending champion but lost in the quarterfinals to Paradorn Srichaphan.
Àlex Corretja was the defending champion but lost in the second round to Werner Eschauer.
José Acasuso was the defending champion but did not compete that year.
Fernando González was the defending champion but did not compete that year.
Agustín Calleri was the defending champion but lost in the first round to Luis Horna.
Carlos Moyá was the defending champion but lost in the third round to Gastón Gaudio.
Jiří Novák was the defending champion but lost in the quarterfinals to Potito Starace.
Guillermo Coria was the defending champion, but did not compete this year.
Nicolás Massú was the defending champion, but lost in the quarterfinals to Filippo Volandri.
