See main article: 2013 MercedesCup. The 2013 MercedesCup was a men's tennis tournament held at the Tennis Club Weissenhof in Stuttgart, Germany. Janko Tipsarević was the defending champion, but chose not to compete.
Fabio Fognini won the title, defeating Philipp Kohlschreiber in the final, 5–7, 6–4, 6–4.[1]
The top four seeds receive a bye into the second round.
The first three seeds received a bye into the second round.