| Singles | |
|---|---|
| 2001 Cerveza Club Colombia Open | |
| Champion |  Fernando Vicente |
| Runner-up |  Juan Ignacio Chela |
| Score | 6–4, 7–6(8–6) |
| Draw | 32 |
| Seeds | 8 |
Mariano Puerta was the defending champion but did not compete that year.
Fernando Vicente won in the final 6–4, 7–6(8–6) against Juan Ignacio Chela.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Albert Costa (first round) Fernando Vicente (champion) Juan Ignacio Chela (final)
Nicolás Massú (first round) Guillermo Coria (quarterfinals)
Markus Hantschk (second round)
Andrei Stoliarov (quarterfinals)
Fernando Meligeni (first round)Fernando González defeated Olivier Rochus 6–4, 6–2 to win the 2005 Heineken Open singles competition. Dominik Hrbatý was the defending singles champion of the tennis tournament, held in Auckland, New Zealand.
Gustavo Kuerten was the defending champion but did not compete that year.
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.
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.
Rafael Nadal defeated Ivan Ljubičić in the final, 3–6, 2–6, 6–3, 6–4, 7–6(7–3) to win the singles tennis title at the 2005 Madrid Open. As of 2022, this remains his sole indoor hardcourt title.
Àlex Corretja was the defending champion but lost in the second round to Christophe Rochus.
Juan Ignacio Chela was the defending champion but lost in the second round to Rubén Ramírez Hidalgo.
Pablo Albano and Lucas Arnold were the defending champions but they competed with different partners that year, Albano with Alexandre Simoni and Arnold with Gastón Etlis.
Juan Ignacio Chela was the defending champion but did not compete that year.
Juan Carlos Ferrero was the defending champion but lost in the third round to Alberto Martín.
Nicolás Lapentti was the defending champion but lost in the third round to Mariano Zabaleta.
Tommy Haas was the defending champion but lost in the semifinals to Paradorn Srichaphan.
Juan Carlos Ferrero defeated Carlos Moyá in the final, 6–3, 1–6, 7–6(7–4) to win the singles tennis title at the 2002 Hong Kong Open.
Àlex Corretja was the defending champion but lost in the second round to David Sánchez.
Àlex Corretja was the defending champion but lost in the second round to Werner Eschauer.
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.
Nicolás Lapentti was the defending champion but lost in the final 6–7(6–8), 6–2, 6–3 against Thomas Muster.
Jiří Novák and David Rikl were the defending champions but only Rikl competed that year with Nicolás Pereira.
Juan Antonio Marín was the defending champion but lost in the first round to Andreas Vinciguerra.
