| Doubles | |
|---|---|
| 2005 Mercedes-Benz Cup | |
| Champions |  Rick Leach Brian MacPhie |
| Runners-up |  Jonathan Erlich Andy Ram |
| Final score | 6–3, 6–4 |
| Draw | 16 |
| Seeds | 4 |
Bob Bryan and Mike Bryan were the defending champions, but lost in the semifinals this year.
Rick Leach and Brian MacPhie won in the final 6–3, 6–4, against Jonathan Erlich and Andy Ram.
Bob Bryan / Mike Bryan (semifinals)
Wayne Arthurs / Paul Hanley (first round)
Simon Aspelin / Todd Perry (first round, retired) Jonathan Erlich / Andy Ram (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | B Bryan M Bryan | 6 | 6 | ||||||||||||||||||||||||
 R Mello  G Müller | 0 | 4 | 1 | B Bryan M Bryan | 6 | 6 | |||||||||||||||||||||
 K Carlsen  P Srichaphan | 1 | 2 | T Phillips J Thomas | 4 | 4 | ||||||||||||||||||||||
| T Phillips J Thomas | 6 | 6 | 1 | B Bryan M Bryan | 3 | 2 | |||||||||||||||||||||
| 4 | J Erlich A Ram | 6 | 6 | 4 | J Erlich A Ram | 6 | 6 | ||||||||||||||||||||
 K Beck  R Koenig | 3 | 0 | 4 | J Erlich A Ram | 77 | 4 | 7 | ||||||||||||||||||||
 M Rodríguez V Spadea | 7 | 5 | 3 |  S Grosjean C Saulnier | 61 | 6 | 5 | ||||||||||||||||||||
| S Grosjean C Saulnier | 5 | 7 | 6 | 4 | J Erlich A Ram | 3 | 4 | ||||||||||||||||||||
| A Fisher S Huss | 1 | 4 | WC | R Leach B MacPhie | 6 | 6 | |||||||||||||||||||||
| WC | J Blake  X Malisse | 6 | 6 | WC | J Blake X Malisse | 4 | 7 | 3 | |||||||||||||||||||
| J Kerr T Parrott | 6 | J Kerr T Parrott | 6 | 5 | 6 | ||||||||||||||||||||||
| 3 | S Aspelin T Perry | 3 | r | J Kerr T Parrott | 64 | 3 | |||||||||||||||||||||
| D Hrbatý G Oliver | 61 | 63 | WC | R Leach B MacPhie | 77 | 6 | |||||||||||||||||||||
| Alt |  J Hernych  I Karlović | 77 | 77 | Alt | J Hernych I Karlović | 2 | 65 | ||||||||||||||||||||
| WC | R Leach B MacPhie | 7 | 4 | 6 | WC | R Leach B MacPhie | 6 | 77 | |||||||||||||||||||
| 2 | W Arthurs P Hanley | 5 | 6 | 3 | |||||||||||||||||||||||
Bob Bryan and Mike Bryan were the defending champions, but lost in the semifinals to Mahesh Bhupathi and Pavel Vízner.
Jonas Björkman and Max Mirnyi were the defending champions, but lost in the second round to Novak Djokovic and Nenad Zimonjić.
Jonas Björkman and Max Mirnyi were the defending champions, but lost in the quarterfinals this year.
Bob Bryan and Mike Bryan were the defending champions and successfully defended their title, defeating Jonathan Erlich and Andy Ram 7–6(8–6), 6–2 in the final.
Bob Bryan and Mike Bryan were the defending champions, but lost in the quarterfinals to Mahesh Bhupathi and Mark Knowles.
Mark Knowles and Daniel Nestor were the defending champions, but lost in the first round to Lukáš Dlouhý and David Škoch.
Bob Bryan and Mike Bryan were the defending champions, and won in the final 6–2, 6–2, against Mahesh Bhupathi and Mark Knowles.
Fabrice Santoro and Nenad Zimonjić were the defending champions. They were both present but did not compete together.
Santoro partnered with Richard Gasquet, but lost in the semifinals to Zimonjic and partner Daniel Nestor, who lost in the final.
Wayne Black and Kevin Ullyett were the defending champions, but Black retired in 2006, and only Ullyett competed that year.
Ullyett partnered with Paul Hanley, but Bob Bryan and Mike Bryan defeated them 6–3, 7–5, in the final.
Jonathan Erlich and Andy Ram were the defending champions, but Bob Bryan and Mike Bryan defeated them 4–6, 7–6(7–2), [10–7], in the final.
Jonathan Erlich and Andy Ram were the defending champions, but Erlich chose not to participate due to an elbow injury, and only Ram competed that year.
Ram partnered with Max Mirnyi, but lost to Feliciano López and Fernando Verdasco in the second round.
Jonathan Erlich and Andy Ram were the defending champions, but Erlich chose not to participate due to injury, and only Ram competed that year.
Ram partnered with Max Mirnyi, they lost in the final to Mardy Fish and Andy Roddick 6–3, 1–6, [12–14]
Jonas Björkman and Max Mirnyi were the defending champions, but lost in quarterfinals to Julien Benneteau and Richard Gasquet.
Bob Bryan and Mike Bryan were the defending champions. They successfully defended their title, defeating Jonathan Erlich and Andy Ram 7–6(7–5), 3–6, [10–7] in the final.
Bob Bryan and Mike Bryan were the defending champions. They successfully defended their title, defeating Paul Hanley and Kevin Ullyett 6–3, 5–7, [10–3] in the final.
Jan-Michael Gambill and Travis Parrott were the defending champions, but Gambill did not participate this year. Parrott partnered Robby Ginepri, losing in the first round.
Max Mirnyi and Daniel Nestor were the defending champions and top seeds, and Nestor came into the event as the two-time defending champion.
They successfully defended their title by defeating Bob Bryan and Mike Bryan 6–4, 6–4 in the final.
Jonas Björkman and Max Mirnyi were the defending champions.
Mark Knowles and Daniel Nestor were the defending champions, but lost in semifinals to Bob Bryan and Mike Bryan.
Jonas Björkman and Max Mirnyi were the defending champions and successfully defended their title, defeating Bob and Mike Bryan 3–6, 6–3, [10–7] in the final.