| Doubles | |
|---|---|
| 2004 Copa Petrobras Santiago | |
| Champions |  Enzo Artoni  Ignacio González King |
| Runners-up | Brian Dabul Damián Patriarca |
| Score | 6–3, 6–0 |
Enzo Artoni and Ignacio González King defeated Brian Dabul and Damián Patriarca 6–3, 6–0 in the final.
André Sá / Flávio Saretta (first round) Sebastián Prieto / 
Fernando Vicente (semifinals) Juan Pablo Brzezicki / Óscar Hernández (semifinals) Enzo Artoni / Ignacio González King (champions)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | A Sá F Saretta | 4 | 5 | ||||||||||||||||||||||||
 V Ioniță G Moraru | 6 | 7 | V Ioniță G Moraru | 4 | 3 | ||||||||||||||||||||||
| B Dabul D Patriarca | 6 | 6 | B Dabul D Patriarca | 6 | 6 | ||||||||||||||||||||||
| WC |  P Harboe F Parada | 4 | 3 | B Dabul D Patriarca | 6 | 77 | |||||||||||||||||||||
| 3 | JP Brzezicki Ó Hernández | 6 | 6 | 3 | JP Brzezicki Ó Hernández | 4 | 63 | ||||||||||||||||||||
| WC | Pedro Graber H Podlipnik | 0 | 2 | 3 | JP Brzezicki Ó Hernández | 66 | 6 | 6 | |||||||||||||||||||
| WC | J Aguilar G Hormazábal | 3 | 2 | A Dellatorre  O Marach | 78 | 3 | 2 | ||||||||||||||||||||
| A Dellatorre O Marach | 6 | 6 | B Dabul D Patriarca | 3 | 0 | ||||||||||||||||||||||
| H Gamonal A García | 6 | 6 | 4 | E Artoni I González King | 6 | 6 | |||||||||||||||||||||
| F Ferreiro JP Guzmán | 4 | 2 | H Gamonal A García | ||||||||||||||||||||||||
 J Pospíšil J Vaněk | 2 | 6 | 4 | 4 | E Artoni I González King | w/o | |||||||||||||||||||||
| 4 | E Artoni I González King | 6 | 3 | 6 | 4 | E Artoni I González King | 6 | 77 | |||||||||||||||||||
| C Berlocq C Villagrán | 2 | 3 | 2 | S Prieto F Vicente | 4 | 63 | |||||||||||||||||||||
| M Daniel M Puerta | 6 | 6 | M Daniel M Puerta | 6 | 3 | 4 | |||||||||||||||||||||
| P Capdeville D Moyano | 4 | 6 | 3 | 2 | S Prieto F Vicente | 3 | 6 | 6 | |||||||||||||||||||
| 2 | S Prieto F Vicente | 6 | 3 | 6 | |||||||||||||||||||||||
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 lost in the semifinals to Rainer Schüttler.
Nicolás Massú was the defending champion but lost in the first round to Agustín Calleri.
Petr Pála and Pavel Vízner were the defending champions, but Vizner chose not to participate, and only Pala competed that year.
Pala partnered with David Škoch, but lost in the first round to Juan Ignacio Chela and Fernando González.
Enzo Artoni and Daniel Melo won in the final 6–3, 1–6, 7–6(7–5) against Gastón Etlis and Brent Haygarth.
Enzo Artoni and Daniel Melo were the defending champions but only Melo competed that year with Ricardo Schlachter.
Mariusz Fyrstenberg and Marcin Matkowski were the defending champions, but lost in the semifinals to František Čermák and Leoš Friedl.
Àlex Corretja was the defending champion but lost in the second round to Christophe Rochus.
Tomás Carbonell and Martín García were the defending champions but only Carbonell competed that year with Daniel Orsanic.
David Sánchez was the defending champion but lost in the semifinals to Gustavo Kuerten.
Fernando Verdasco was the defending champion, but chose not to compete in 2010.
Sergiy Stakhovsky won in the final against Denis Istomin, 3–6, 6–3, 6–4.
Łukasz Kubot and Oliver Marach were the defending champions. They reached the final, but lost to Marcelo Melo and Bruno Soares, 6–3, 7–6(3).
Enzo Artoni and Fernando Vicente were the defending champions. Artoni partnered with Marcin Matkowski this year, losing in the quarterfinals. Vicente did not participate.
František Čermák and Leoš Friedl were the defending champions, but did not participate this year.
Ignacio González King is a former professional tennis player from Argentina.
Ivo Karlović was the defending champion, but lost in the final to Bernard Tomic, 6–7(5–7), 6–3, 6–7(4–7).
The 2004 Copa Petrobras Santiago was a professional tennis tournament played on outdoor red clay courts. It was part of the 2004 ATP Challenger Series. It took place in Santiago, Chile between 1 and 7 November 2004.
Enzo Artoni and Ignacio González King were the defending champions, but did not compete this year.
Irakli Labadze and Dušan Vemić were the defending champions, but Labadze decided to compete in Aachen, Germany at the same week.
Máximo González and Horacio Zeballos were the defending champions, but chose not to participate together. González played alongside Fabrice Martin, but lost in the first round to Pablo Andújar and Pedro Martínez.