2011 San Marino CEPU Open

The 2011 San Marino CEPU Open was a professional tennis tournament played on clay courts. It was the 24th edition of the tournament which was part of the Tretorn SERIE+ of the 2011 ATP Challenger Tour. It took place in City of San Marino, San Marino between 8 and 14 August 2011.

Seeds

 * 1 Rankings are as of August 1, 2011.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Alessio di Mauro
 * 🇮🇹 Stefano Galvani
 * 🇦🇹 Thomas Muster
 * 🇮🇹 Matteo Trevisan

The following players received entry as a special exempt into the singles main draw:
 * 🇫🇷 Grégoire Burquier
 * 🇦🇷 Leonardo Mayer

The following players received entry from the qualifying draw:
 * 🇧🇪 Maxime Authom
 * Benjamin Balleret
 * 🇮🇹 Daniele Giorgini
 * João Sousa

Singles
🇮🇹 Potito Starace def. 🇸🇰 Martin Kližan, 6–1, 3–0, retired

Doubles
🇺🇸 James Cerretani / 🇩🇪 Philipp Marx def. 🇮🇹 Daniele Bracciali / 🇦🇹 Julian Knowle, 6–3, 6–4