| Singles | |
|---|---|
| 2011 San Marino CEPU Open | |
| Champion |  Potito Starace |
| Runner-up |  Martin Kližan |
| Final score | 6–1, 3–0, retired |
Robin Haase was the defending champion, but decided not to participate.
Potito Starace won the title. He played against Martin Kližan, but his opponent retired due to left foot injury, when the result was 6–1, 3–0.
Potito Starace (champion)
Lukáš Rosol (quarterfinals) Filippo Volandri (second round)
Pere Riba (second round)
Rui Machado (second round)
Marc Gicquel (semifinals)
Mischa Zverev (first round) Benoît Paire (semifinals)| Semifinals | Final | ||||||||||||
| 1 | Potito Starace | 6 | 6 | ||||||||||
| 8 | Benoît Paire | 2 | 4 | ||||||||||
| 1 | Potito Starace | 6 | 3 | ||||||||||
| Martin Kližan | 1 | 0r | |||||||||||
| Martin Kližan | 3 | 6 | 7 | ||||||||||
| 6 | Marc Gicquel | 6 | 4 | 5 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | P Starace | 6 | 6 | ||||||||||||||||||||||||
| D Gremelmayr | 4 | 1 | 1 | P Starace | 7 | 6 | |||||||||||||||||||||
| WC | A di Mauro | 4 | 6 | 62 |  J Huta Galung | 5 | 3 | ||||||||||||||||||||
| J Huta Galung | 6 | 4 | 77 | 1 | P Starace | 6 | 6 | ||||||||||||||||||||
| J Hájek | 77 | 6 | J Hájek | 4 | 3 | ||||||||||||||||||||||
| D Guez | 64 | 3 | J Hájek | 6 | 7 | ||||||||||||||||||||||
 S Darcis | 77 | 6 | S Darcis | 1 | 5 | ||||||||||||||||||||||
| 7 | M Zverev | 63 | 1 | 1 | P Starace | 6 | 6 | ||||||||||||||||||||
| 4 | P Riba | 3 | 6 | 6 | 8 | B Paire | 2 | 4 | |||||||||||||||||||
| WC | M Trevisan | 6 | 3 | 2 | 4 | P Riba | 1 | 2 | |||||||||||||||||||
| Q | M Authom | 5 | 6 | 3 | SE |  L Mayer | 6 | 6 | |||||||||||||||||||
| SE | L Mayer | 7 | 1 | 6 | SE | L Mayer | 4 | 3 | |||||||||||||||||||
 U Ignatik | 63 | 3 | 8 | B Paire | 6 | 6 | |||||||||||||||||||||
 N Ćirić | 77 | 6 | N Ćirić | 77 | 4 | 4 | |||||||||||||||||||||
| S Bolelli | 77 | 5 | 2 | 8 | B Paire | 60 | 6 | 6 | |||||||||||||||||||
| 8 | B Paire | 65 | 7 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | R Machado | 6 | 6 | ||||||||||||||||||||||||
 A Ungur | 1 | 2 | 5 | R Machado | 6 | 4 | 61 | ||||||||||||||||||||
| Q | J Sousa | 2 | 4 | M Kližan | 3 | 6 | 77 | ||||||||||||||||||||
| M Kližan | 6 | 6 | M Kližan | 6 | 0 | ||||||||||||||||||||||
| B Phau | 6 | 7 | B Phau | 3 | 0r | ||||||||||||||||||||||
| P Lorenzi | 3 | 5 | B Phau | 6 | 6 | ||||||||||||||||||||||
| Q | D Giorgini | 1 | 2 | 3 | F Volandri | 2 | 2 | ||||||||||||||||||||
| 3 | F Volandri | 6 | 6 | M Kližan | 3 | 6 | 7 | ||||||||||||||||||||
| 6 | M Gicquel | 6 | 1 | 7 | 6 | M Gicquel | 6 | 4 | 5 | ||||||||||||||||||
| WC | S Galvani | 1 | 6 | 5 | 6 | M Gicquel | 6 | 7 | |||||||||||||||||||
| Q |  B Balleret | 4 | 7 | 6 | Q | B Balleret | 2 | 5 | |||||||||||||||||||
| WC |  T Muster | 6 | 5 | 2 | 6 | M Gicquel | 3 | 6 | 6 | ||||||||||||||||||
| SE | Grégoire Burquier | 2 | 6 | 3 | 2 | L Rosol | 6 | 3 | 4 | ||||||||||||||||||
| D Brown | 6 | 3 | 6 | D Brown | 1 | 6 | 3 | ||||||||||||||||||||
| I Minář | 5 | 3 | 2 | L Rosol | 6 | 3 | 6 | ||||||||||||||||||||
| 2 | L Rosol | 7 | 6 | ||||||||||||||||||||||||
Mario Ančić was the defending champion, but lost in the second round to Mikhail Youzhny.
Second-seeded Tommy Robredo was the defending champion, but first-seeded Nikolay Davydenko defeated him 6–3, 6–3, in the final.
Luis Horna and Potito Starace were the defending champions, but lost in the first round to James Cerretani and Victor Hănescu.
Dmitry Tursunov was the defending champion, but lost in the first round to Richard Gasquet.
Rafael Nadal was the defending champion, but chose not to participate that year.
Potito Starace was the three-time defending champion, but he lost to Andreas Haider-Maurer in the first round.
Stanislas Wawrinka was the defending champion, and he won in the final 6–7(2), 6–2, 6–1 against Potito Starace.
Potito Starace is the defending champion. Starace lost in the final against Simone Bolelli 6–7(7–9), 2–6.
Alberto Martín was the defending champion but decided not to participate this year.
Fabio Fognini won the Italian final, where he defeated Potito Starace 6–4, 6–1.
Thomaz Bellucci was the defending champion, but lost to Fabio Fognini in the quarterfinals.
Tommy Robredo won the title, defeating Santiago Giraldo 6–2, 2–6, 7–6(7–5), in the final.
Stanislas Wawrinka was the defending champion, but hasn't entered this year.
Pablo Andújar defeated Potito Starace 6–1, 6–2 in the final match.
Nicolás Almagro was the defending champion, but he lost to David Ferrer in the semifinals.
Juan Ignacio Chela was the defending champion but was eliminated in the semifinals by Pablo Andújar.
Florian Mayer won the title, defeating Pablo Andújar 6–3, 6–1 in the final.
Daniele Bracciali and Potito Starace were the defending champions, but were eliminated in the quarterfinals.
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.
Potito Starace is the defending champion, but lost in the first round.
Martin Kližan won the title, defeating Simone Bolelli 6–3, 6–1 in the final.
Aljaž Bedene was the defending champion but chose not to compete.
Dominic Thiem won the title defeating Potito Starace in the final.
Rafael Nadal was the defending champion but chose not to compete.
Albert Montañés won the title, beating Potito Starace 6–2, 6–4
Jaroslav Pospíšil was the defending champion, but lost in the second round to Potito Starace.