| Singles | |
|---|---|
| 2005 Dutch Open | |
| Champion |  Fernando González |
| Runner-up |  Agustín Calleri |
| Final score | 7–5, 6–3 |
| Draw | 32 |
| Seeds | 8 |
Martin Verkerk was the defending champion, but did not participate this year.
Fernando González won the tournament, beating Agustín Calleri in the final, 7–5, 6–3.
Mariano Puerta (quarterfinals) Fernando González (champion) Nicolás Massú (quarterfinals)
Christophe Rochus (second round)
Luis Horna (first round)
Victor Hănescu (second round)
Óscar Hernández (first round)
Tomas Behrend (first round)| Semifinals | Final | ||||||||||||
 Ivo Minář | 4 | 4 | |||||||||||
| Agustín Calleri | 6 | 6 | |||||||||||
| Agustín Calleri | 5 | 3 | |||||||||||
| 2 | Fernando González | 7 | 6 | ||||||||||
| David Sánchez | 2 | 1 | |||||||||||
| 2 | Fernando González | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Puerta | 6 | 6 | ||||||||||||||||||||||||
 J Tipsarević | 2 | 2 | 1 | M Puerta | 6 | 6 | |||||||||||||||||||||
| Q |  JA Marín | 77 | 6 | Q | JA Marín | 2 | 2 | ||||||||||||||||||||
 F Aldi | 65 | 1 | M Puerta | 2 | 7 | 64 | |||||||||||||||||||||
| I Minář | 6 | 6 | I Minář | 6 | 5 | 77 | |||||||||||||||||||||
 F Serra | 4 | 2 | I Minář | 77 | 6 | ||||||||||||||||||||||
| S Ventura | 3 | 6 | 6 | S Ventura | 65 | 4 | |||||||||||||||||||||
| 7 | Ó Hernández | 6 | 0 | 1 | I Minář | 4 | 4 | ||||||||||||||||||||
| 4 | C Rochus | 4 | 6 | 7 | A Calleri | 6 | 6 | ||||||||||||||||||||
| M Tabara | 6 | 2 | 5 | 4 | C Rochus | 2 | 5 | ||||||||||||||||||||
| WC |  M van Gemerden | 6 | WC | M van Gemerden | 6 | 7 | |||||||||||||||||||||
| WC | D van Scheppingen | 0 | r | WC | M van Gemerden | 4 | 4 | ||||||||||||||||||||
| Q | J Benneteau | 4 | 6 | 3 | A Calleri | 6 | 6 | ||||||||||||||||||||
| A Calleri | 6 | 2 | 6 | A Calleri | 77 | 6 | |||||||||||||||||||||
| WC | S Korteling | 4 | 5 | 6 | V Hănescu | 65 | 4 | ||||||||||||||||||||
| 6 | V Hănescu | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | T Behrend | 4 | 5 | ||||||||||||||||||||||||
| D Sánchez | 6 | 7 | D Sánchez | 6 | 6 | ||||||||||||||||||||||
| LL | S Roitman | 6 | 3 | 5 | Á Calatrava | 2 | 2 | ||||||||||||||||||||
| Á Calatrava | 3 | 6 | 7 | D Sánchez | 6 | 4 | 6 | ||||||||||||||||||||
| D Norman | 77 | 2 | 3 | 3 | N Massú | 3 | 6 | 3 | |||||||||||||||||||
| J Vaněk | 65 | 6 | 6 | J Vaněk | 4 | 5 | |||||||||||||||||||||
| Q | N Thomann | 4 | 2 | 3 | N Massú | 6 | 7 | ||||||||||||||||||||
| 3 | N Massú | 6 | 6 | D Sánchez | 2 | 1 | |||||||||||||||||||||
| 5 | L Horna | 79 | 3 | 5 | 2 | F González | 6 | 6 | |||||||||||||||||||
| R Sluiter | 67 | 6 | 7 | R Sluiter | 6 | 65 | 2 | ||||||||||||||||||||
| Q | R Žitko | 62 | 3 | D Bracciali | 1 | 77 | 6 | ||||||||||||||||||||
| D Bracciali | 77 | 6 | D Bracciali | 3 | 3 | ||||||||||||||||||||||
 N Lapentti | 1 | 3 | 2 | F González | 6 | 6 | |||||||||||||||||||||
| R Vik | 6 | 6 | R Vik | 2 | 2 | ||||||||||||||||||||||
| K Vliegen | 2 | 1 | 2 | F González | 6 | 6 | |||||||||||||||||||||
| 2 | F González | 6 | 6 | ||||||||||||||||||||||||
Marcos Baghdatis was the defending champion, but lost in the quarterfinals to Ivan Ljubičić.
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.
Roger Federer was the defending champion, and won in the final 6–3, 6–4, against Jarkko Nieminen.
Luis Horna was the defending champion, but lost in the second round to Carlos Berlocq.
Andy Roddick was the defending champion, but lost in the semifinals to Rafael Nadal.
Rafael Nadal defeated Nicolas Kiefer in the final, 6–3, 6–2 to win the men's singles tennis title at the 2008 Canadian Open.
Greg Rusedski was the defending champion of the singles event of the Heineken Open tennis tournament, held in Auckland, New Zealand, but did not compete that year.
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.
Fernando González was the defending champion, but lost in the quarterfinals to Björn Phau.
Novak Djokovic was the defending champion, but chose not to participate that year.
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.
Fernando González was the defending champion. He defeated José Acasuso in the final 6–1, 6–3.
Fernando González was the defending champion, but was unable to play due to an injury.
Nikolay Davydenko won in the final 6–4, 7–5, against Fernando Verdasco.
Andy Roddick was the defending champion but lost in the third round to Fernando Meligeni.
Félix Mantilla was the defending champion but did not compete that year.
James Blake was the defending champion but lost in the quarterfinals to Andre Agassi.
Ivan Ljubičić was the defending champion, and defended his title defeating Fernando González 6–3, 6–4, 7–5 in the final.
Nicolás Massú was the defending champion, but lost in the semifinals this year.
Juan Mónaco was the defending champion, but lost in the first round to Dustin Brown.