| Doubles | |
|---|---|
| 2005 SAP Open | |
| Champions |  Wayne Arthurs Paul Hanley |
| Runners-up |  Yves Allegro  Michael Kohlmann |
| Final score | 7–6(7–4), 6–4 |
| Draw | 16 |
| Seeds | 4 |
James Blake and Mardy Fish were the defending champions, but lost in the quarterfinals this year.
Wayne Arthurs and Paul Hanley won the title, defeating Yves Allegro and Michael Kohlmann 7–6(7–4), 6–4 in the final.
Wayne Arthurs / Paul Hanley (champions)
Simon Aspelin / Todd Perry (semifinals) Yves Allegro / Michael Kohlmann (final)
Rick Leach / Brian MacPhie (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | W Arthurs P Hanley | 78 | 2 | 6 | |||||||||||||||||||||||
| J Kerr J Thomas | 66 | 6 | 2 | 1 | W Arthurs P Hanley | 6 | 6 | ||||||||||||||||||||
| A Fisher P Kohlschreiber | 3 | A Fisher P Kohlschreiber | 3 | 4 | |||||||||||||||||||||||
| WC | L Jensen M Jensen | 3r | 1 | W Arthurs P Hanley | 2 | 77 | 77 | ||||||||||||||||||||
| 4 | R Leach B MacPhie | 65 | 63 | WC | J-M Gambill R Ginepri | 6 | 64 | 61 | |||||||||||||||||||
 J Melzer G Oliver | 77 | 77 | J Melzer G Oliver | 3 | 2 | ||||||||||||||||||||||
| WC | J-M Gambill R Ginepri | 6 | 2 | 77 | WC | J-M Gambill R Ginepri | 6 | 6 | |||||||||||||||||||
 J Coetzee  C Saulnier | 3 | 6 | 61 | 1 | W Arthurs P Hanley | 78 | 6 | ||||||||||||||||||||
 X Malisse T Vanhoudt | 6 | 4 | 6 | 3 | Y Allegro M Kohlmann | 66 | 4 | ||||||||||||||||||||
 J Levinský J Novák | 3 | 6 | 3 | X Malisse T Vanhoudt | 6 | 3 | 3 | ||||||||||||||||||||
| C Haggard R Koenig | 3 | 6 | 5 | 3 | Y Allegro M Kohlmann | 3 | 6 | 6 | |||||||||||||||||||
| 3 | Y Allegro M Kohlmann | 6 | 3 | 7 | 3 | Y Allegro M Kohlmann | 78 | 7 | |||||||||||||||||||
 I Labadze  H-t Lee | 3 | 4 | 2 | S Aspelin T Perry | 66 | 5 | |||||||||||||||||||||
| J Blake M Fish | 6 | 6 | J Blake M Fish | 6 | 63 | 3 | |||||||||||||||||||||
| K Kim T Parrott | 4 | 4 | 2 | S Aspelin T Perry | 0 | 77 | 6 | ||||||||||||||||||||
| 2 | S Aspelin T Perry | 6 | 6 | ||||||||||||||||||||||||
Bob and Mike Bryan were the defending champions, but lost in the third round to Leoš Friedl and Mikhail Youzhny.
Xavier Malisse and Olivier Rochus were the defending champions, but lost in the third round against third seeds and eventual finalists Bob & Mike Bryan.
Jonas Björkman and Todd Woodbridge were the two-time defending champions but did not play together. Björkman partnered with Max Mirnyi and Woodbridge partnered with Mahesh Bhupathi but both pairs lost to Stephen Huss and Wesley Moodie, in the semifinals and the second round respectively.
Michael Kohlmann and Alexander Waske were the defending champions, but chose not to participate that year.
Tim Henman and Nenad Zimonjić were the defending champions. They were both present but did not compete together.
Henman partnered with Yves Allegro and Zimonjić with Leander Paes.
Yves Allegro and Roger Federer were the defending champions, but Federer chose not to participate, and only Allegro competed that year.
Allegro partnered with Marat Safin, but lost in the semifinals to Michael Kohlmann and Rainer Schüttler.
Jaroslav Levinský and Filip Polášek were the defending champions, but lost in the final to Marco Chiudinelli and Michael Lammer, 7–5, 6–3.
Todd Woodbridge and Mark Woodforde were the defending champions but only Woodbridge competed that year with Wayne Arthurs.
Dominik Hrbatý and David Škoch defeated 6–2, 6–4 James Auckland and Peter Luczak in the final. They became the first champions of this tournament.
Paul Hanley and Nathan Healey were the defending champions but they competed with different partners that year, Hanley with Wayne Arthurs and Healey with Jordan Kerr.
Yves Allegro and Horia Tecău, who were the winners in 2008, chose to not compete this year.
Michael Kohlmann and Alexander Peya became the new champions, by defeating Philipp Marx and Igor Zelenay 6–4, 7–6(4) in the final.
Wayne Arthurs and Paul Hanley were the defending champions. Arthurs partnered with Michaël Llodra this year, losing in the first round. Hanley partnered with Kevin Ullyett, winning the title again.
František Čermák and Leoš Friedl were the defending champions, but did not participate this year.
David Škoch and Tomáš Zíb were the defending champions, but did not participate together this year. Skoch partnered Jordan Kerr, losing in the first round. Zib did not participate this year.
Rick Leach and Brian MacPhie were the defending champions, but lost in the first round this year.
Yves Allegro and Michael Kohlmann were the defending champions, but Kohlmann did not participate this year. Allegro partnered Stanislas Wawrinka, losing in the quarterfinals.
Mahesh Bhupathi and Fabrice Santoro were the defending champions of the doubles event of the Heineken Open tennis tournament, held in Auckland, New Zealand, but did not participate this year.
Paul Hanley and Jim Thomas were the defending champions, but Hanley did not participate this year. Thomas partnered Yves Allegro, losing in the quarterfinals.
Jaroslav Levinský and Michal Mertiňák were the defending champions, but did not participate together this year. Levinský partnered František Čermák, finishing runner-up. Mertiňák partnered Petr Pála, losing in the first round.
Justin Gimelstob and Nicolas Kiefer were the defending champions, but Kiefer did not compete this year. Gimelstob teamed up with Ashley Fisher and lost in quarterfinals to Yves Allegro and Michael Kohlmann.