2013 SAP Open – Doubles
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Mark Knowles and Xavier Malisse were the defending champions but Knowles did not participate this year because of his retirement from professional tennis in September 2012. Malisse played alongside Frank Moser and successfully defended the title, defeating Lleyton Hewitt and Marinko Matosevic in the final 6–0, 6–7(5–7), [10–4].
Seeds
- United States Bob Bryan / United States Mike Bryan (quarterfinals)
- Spain David Marrero / Spain Fernando Verdasco (first round)
- Mexico Santiago González / United States Scott Lipsky (quarterfinals)
- Belgium Xavier Malisse / Germany Frank Moser (champions)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted