2009 SAP Open
| 2009 SAP Open | |
|---|---|
| Date | February 9 – February 15 | 
| Edition | 120th | 
| Champions | |
| Singles | |
|  Radek Štěpánek | |
| Doubles | |
|  Tommy Haas /  Radek Štěpánek | |
The 2009 SAP Open was a tennis tournament played on indoor hard courts. It was the 120th edition of the SAP Open, and was part of the International Series of the 2009 ATP Tour. It took place at the HP Pavilion in San Jose, California, United States, from February 9 through February 15, 2009.
The singles draw featured ATP No. 6, 2009 Australian Open semi-finalist and 2009 Dubai finalist Andy Roddick, 2009 Australian Open quarterfinalist and 2008 U.S Open quarterfinalist Juan Martín del Potro, Other names include James Blake, Radek Štěpánek, Mardy Fish, Sam Querrey, Igor Kunitsyn and Robby Ginepri.
Entrants
Seeds
| Athlete | Nationality | Ranking* | Seeding | 
|---|---|---|---|
| Andy Roddick |  United States | 6 | 1 | 
| Juan Martín del Potro |  Argentina | 7 | 2 | 
| James Blake |  United States | 11 | 3 | 
| Radek Štěpánek |  Czech Republic | 21 | 4 | 
| Mardy Fish |  United States | 24 | 5 | 
| Sam Querrey |  United States | 34 | 6 | 
| Igor Kunitsyn |  Russia | 43 | 7 | 
| Robby Ginepri |  United States | 44 | 8 | 
- Rankings as of February 9, 2009.
Other entrants
The following players received wildcards into the main draw:
 Lars Poerschke Lars Poerschke
 Marcos Baghdatis Marcos Baghdatis
 John Isner John Isner
The following players received entry from the qualifying draw:
 Michael Ryderstedt Michael Ryderstedt
 Dominik Meffert Dominik Meffert
 Todd Widom Todd Widom
 Andrea Stoppini Andrea Stoppini
 Ramón Delgado (as a lucky loser, replacing Guillermo García-López) Ramón Delgado (as a lucky loser, replacing Guillermo García-López)
Champions
Singles
 Radek Štěpánek def.
 Radek Štěpánek def.  Mardy Fish, 3–6, 6–4, 6–2
 Mardy Fish, 3–6, 6–4, 6–2
- It was Štěpánek's second title of the year and 4th of his career.
Doubles
 Tommy Haas /
 Tommy Haas /  Radek Štěpánek def.
 Radek Štěpánek def.  Rohan Bopanna /
 Rohan Bopanna /  Jarkko Nieminen 6–2, 6–3
 Jarkko Nieminen 6–2, 6–3