| Singles | |
|---|---|
| 2011 Tennis Napoli Cup | |
| Champion |  Thomas Schoorel |
| Runner-up |  Filippo Volandri |
| Final score | 6–2, 7–6(7–4) |
Rui Machado was the defending champion, but decided not to participate.
Thomas Schoorel won his second Challenger title, defeating Filippo Volandri 6–2, 7–6(7–4) in the final.
Jérémy Chardy (first round) Filippo Volandri (final)
Frederico Gil (quarterfinals)
Andreas Haider-Maurer (semifinals)
Ivo Minář (semifinals)
Steve Darcis (quarterfinals) Alessio di Mauro (second round)
Daniel Muñoz-de la Nava (second round)| Semifinals | Final | ||||||||||||
| Thomas Schoorel | 6 | 64 | 6 | ||||||||||
| 5 | Ivo Minář | 4 | 77 | 4 | |||||||||
| Thomas Schoorel | 6 | 77 | |||||||||||
| 2 | Filippo Volandri | 2 | 64 | ||||||||||
| 4 | Andreas Haider-Maurer | 4 | 0 | ||||||||||
| 2 | Filippo Volandri | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1/WC | J Chardy | 4 | 3 | ||||||||||||||||||||||||
| T Schoorel | 6 | 6 | T Schoorel | 6 | 7 | ||||||||||||||||||||||
 S Stadler | 4 | 1 | Q |  P Červenák | 4 | 5 | |||||||||||||||||||||
| Q | P Červenák | 6 | 6 | T Schoorel | 6 | 7 | |||||||||||||||||||||
 A Ungur | 3 | 6 | 6 | 6 | S Darcis | 4 | 5 | ||||||||||||||||||||
| V Crivoi | 6 | 1 | 3 | A Ungur | 4 | 1 | |||||||||||||||||||||
| I Klec | 4 | 67 | 6 | S Darcis | 6 | 6 | |||||||||||||||||||||
| 6 | S Darcis | 6 | 79 | T Schoorel | 6 | 64 | 6 | ||||||||||||||||||||
| 3 | F Gil | 6 | 6 | 5 | I Minář | 4 | 77 | 4 | |||||||||||||||||||
| A Gensse | 3 | 4 | 3 | F Gil | 6 | 6 | |||||||||||||||||||||
| M Viola | 3 | 6 | 3 | Q |  Daniel Smethurst | 3 | 3 | ||||||||||||||||||||
| Q | Daniel Smethurst | 6 | 4 | 6 | 3 | F Gil | 65 | 6 | 3 | ||||||||||||||||||
| R Bautista Agut | 77 | 4 | 6 | 5 | I Minář | 77 | 3 | 6 | |||||||||||||||||||
| M Teixeira | 65 | 6 | 3 | R Bautista Agut | 65 | 4 | |||||||||||||||||||||
 I Bozoljac | 3 | 5 | 5 | I Minář | 77 | 6 | |||||||||||||||||||||
| 5 | I Minář | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | D Muñoz-de la Nava | 6 | 4 | 7 | |||||||||||||||||||||||
| G Alcaide | 2 | 6 | 5 | 8 | D Muñoz-de la Nava | 67 | 77 | 1 | |||||||||||||||||||
| WC | M Trevisan | 6 | 6 | WC | M Trevisan | 79 | 64 | 6 | |||||||||||||||||||
 A Veić | 3 | 4 | WC | M Trevisan | 68 | 1 | |||||||||||||||||||||
| D Guez | 2 | 6 | 3 | 4 | A Haider-Maurer | 710 | 6 | ||||||||||||||||||||
| Q |  M Yani | 6 | 4 | 6 | Q | M Yani | 6 | 3 | 1 | ||||||||||||||||||
| Q | Enrico Burzi | 2 | 2 | 4 | A Haider-Maurer | 1 | 6 | 6 | |||||||||||||||||||
| 4 | A Haider-Maurer | 6 | 6 | 4 | A Haider-Maurer | 4 | 0 | ||||||||||||||||||||
| 7 | A di Mauro | 6 | 5 | 6 | 2 | F Volandri | 6 | 6 | |||||||||||||||||||
| WC | Enrico Fioravante | 2 | 7 | 2 | 7 | A di Mauro | 7 | 3 | 0 | ||||||||||||||||||
| N Ćirić | 3 | 66 | I Sijsling | 5 | 6 | 6 | |||||||||||||||||||||
| I Sijsling | 6 | 78 | I Sijsling | 3r | |||||||||||||||||||||||
| WC | T Muster | 3 | 5 | 2 | F Volandri | 6 | |||||||||||||||||||||
 U Ignatik | 6 | 7 | U Ignatik | 3 | 2 | ||||||||||||||||||||||
 P Polansky | 0 | 2 | 2 | F Volandri | 6 | 6 | |||||||||||||||||||||
| 2 | F Volandri | 6 | 6 | ||||||||||||||||||||||||
Juan Mónaco was the defending champion, but lost in the first round to Agustín Calleri.
Roger Federer was the defending champion and won the title again with a straight sets 7–6(7–5), 7–6(7–4), 7–6(8–6) victory over Croat sixth-seed Ivan Ljubičić.
Gastón Gaudio was the defending champion, but did not participate this year.
Tommy Robredo was the defending champion, but chose to compete in Marseille instead.
Filippo Volandri won the inaugural edition of Due Ponti Cup. He defeated Reda El Amrani 6–3, 6–2 in the final.
Carlos Moyá was the defending champion and won in the final 6–4, 3–6, 7–5 against Filippo Volandri.
David Sánchez was the defending champion but lost in the semifinals to Gustavo Kuerten.
Andreas Seppi was the defending champion but decided not to participate this year.
Robin Haase won the title, defeating Filippo Volandri 6–2, 7–6(8) in the finals.
Carlos Berlocq was the defending champion, but Simone Vagnozzi eliminated him in the second round.
The Men’s Singles tournament of the 2006 BCR Open Romania tennis championship took place in Bucharest, Romania, between 11 September and 17 September 2006. 32 players from 13 countries competed in the 5-round tournament. The final winner was Jürgen Melzer of Austria, who defeated Filippo Volandri of Italy. The defending champion from 2005, Florent Serra, lost in the semifinals to Volandri.
Pablo Andújar was the two-time defending champion but lost in the first round to fellow countryman Pablo Carreño-Busta.
Tommy Robredo won the title, defeating Kevin Anderson in the final, 7–6(8–6), 4–6, 6–3.
Gilles Simon was the defending champion, but lost in the semifinals to Lukáš Rosol.
Rosol went on to win his first ATP World Tour title of his career, defeating Guillermo García-López in the final, 6–3, 6–2.
Roberto Bautista-Agut was the defending champion but chose to participate at the 2013 Crédit Agricole Suisse Open Gstaad instead.
Albert Montañés is the defending champion but lost in the first round to Gianluca Naso.
Dustin Brown defeated Filippo Volandri 7–6(7–5), 6–3
Filippo Volandri was the defending champion, but lost in the first round to Juan Lizariturry.
Björn Phau was the defending champion from the last tournament in 2010, but chose not to compete this year.
In the 2006 Campionati Internazionali di Sicilia singles event, Igor Andreev was the defending champion, but did not participate.
Rafael Nadal was the defending champion, but did not participate.
Philipp Kohlschreiber was the defending champion, but lost in the second round to Karen Khachanov.
Nicolás Massú was the defending champion, but lost in the quarterfinals to Filippo Volandri.