| Singles | |
|---|---|
| 2011 Città di Caltanissetta | |
| Champion |  Andreas Haider-Maurer |
| Runner-up |  Matteo Viola |
| Score | 6–1, 7–6(1) |
Robin Haase was the defending champion, but chose not to compete.
Andreas Haider-Maurer won the title, defeating Matteo Viola in the final.
Filippo Volandri (second round)
Denis Gremelmayr (first round) Andreas Haider-Maurer (champion)
Benoît Paire (first round) Simon Greul (first round) Alessio di Mauro (first round) Bastian Knittel (second round) David Guez (first round)| Semifinals | Final | ||||||||||||
 Adrian Ungur | 3 | 7 | 4 | ||||||||||
| 3 | Andreas Haider-Maurer | 6 | 63 | 6 | |||||||||
| 3 | Andreas Haider-Maurer | 6 | 7 | ||||||||||
| Matteo Viola | 1 | 61 | |||||||||||
| Matteo Viola | 6 | 6 | |||||||||||
 Adrián Menéndez | 4 | 2 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | F Volandri | 1 | 6 | 6 | |||||||||||||||||||||||
 N Ćirić | 6 | 3 | 1 | 1 | F Volandri | 4 | 0 | ||||||||||||||||||||
| A Ungur | 6 | 6 | A Ungur | 6 | 6 | ||||||||||||||||||||||
| J Martí | 2 | 2 | A Ungur | 6 | 7 | ||||||||||||||||||||||
| Andrea Arnaboldi | 69 | 4 |  T Schoorel | 3 | 5 | ||||||||||||||||||||||
| T Schoorel | 7 | 6 | T Schoorel | 6 | 6 | ||||||||||||||||||||||
| Alexander Flock | 4 | 2 | 7 | B Knittel | 3 | 1 | |||||||||||||||||||||
| 7 | B Knittel | 6 | 6 | A Ungur | 3 | 7 | 4 | ||||||||||||||||||||
| 3 | A Haider-Maurer | 6 | 6 | 3 | A Haider-Maurer | 6 | 63 | 6 | |||||||||||||||||||
 F Dustov | 3 | 1 | 3 | A Haider-Maurer | 5 | 6 | 6 | ||||||||||||||||||||
| Q | A van der Duim | 7 | 6 | Q | A van der Duim | 7 | 2 | 3 | |||||||||||||||||||
| WC | F Aldi | 5 | 0 | 3 | A Haider-Maurer | 6 | 6 | ||||||||||||||||||||
| Q | Enrico Burzi | 4 | 4 | G Naso | 3 | 4 | |||||||||||||||||||||
| G Naso | 6 | 6 | G Naso | 7 | 6 | ||||||||||||||||||||||
| S Vagnozzi | 6 | 6 | S Vagnozzi | 5 | 4 | ||||||||||||||||||||||
| 5 | S Greul | 2 | 1 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | A di Mauro | 67 | 1 | ||||||||||||||||||||||||
| WC | S Galvani | 7 | 6 | WC | S Galvani | 6 | 2 | ||||||||||||||||||||
| P Santos | 2 | 4 | J Eysseric | 4 | 0r | ||||||||||||||||||||||
| J Eysseric | 6 | 6 | WC | S Galvani | 6 | 2 | 4 | ||||||||||||||||||||
| D Giorgini | 5 | 6 | 63 | M Viola | 3 | 6 | 6 | ||||||||||||||||||||
| M Trevisan | 7 | 2 | 7 | M Trevisan | 3 | 6 | 5 | ||||||||||||||||||||
| M Viola | 6 | 7 | M Viola | 6 | 4 | 7 | |||||||||||||||||||||
| 4 | B Paire | 0 | 63 | M Viola | 6 | 6 | |||||||||||||||||||||
| 8 | D Guez | 3 | 1 | A Menéndez | 4 | 2 | |||||||||||||||||||||
| Q |  A Bedene | 6 | 6 | Q | A Bedene | 7 | 5 | 6 | |||||||||||||||||||
| WC | D Bracciali | 0 | 5 | P Carreño Busta | 61 | 7 | 3 | ||||||||||||||||||||
| P Carreño Busta | 6 | 7 | Q | A Bedene | 7 | 3 | 65 | ||||||||||||||||||||
| Q | Filippo Leonardi | 4 | 62 | A Menéndez | 64 | 6 | 7 | ||||||||||||||||||||
| A Brizzi | 6 | 7 | A Brizzi | 5 | 7 | 63 | |||||||||||||||||||||
| A Menéndez | 2 | 6 | 6 | A Menéndez | 7 | 5 | 7 | ||||||||||||||||||||
| 2 | D Gremelmayr | 6 | 4 | 4 | |||||||||||||||||||||||
Jürgen Melzer was the defending champion. He successfully defended his last year's title by beating Lucky loser and his compatriot, Andreas Haider-Maurer 6–7(10–12), 7–6(7–4), 6–4 in the final match.
The 2012 Marburg Open was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Marburg, Germany between 25 June and 1 July 2012.
Adrian Ungur was the defending champion but decided not to participate.
Gianluca Naso won the final against Andreas Haider-Maurer 6–4, 7–5.
Pablo Carreño Busta was the defending champion but decided not to participate.
Andreas Haider-Maurer won the title by defeating João Sousa 6–3, 6–4 in the final.
Benoît Paire chose to not defend his last year's title.
Blaž Kavčič was the defending champion, but retired from his first round match with a back injury.
Victor Hănescu won the title, defeating Andreas Haider-Maurer 6–4, 6–1 in the final.
Roger Federer was the defending champion, but was eliminated by Tomáš Berdych in the semifinals.
Novak Djokovic won the title, defeating Berdych in the final, 7–5, 6–3.
Roger Federer was the defending champion, but lost in the quarterfinals to Julien Benneteau.
Juan Martín del Potro won the title, defeating Benneteau in the final 7–6(7–2), 6–3.
Jerzy Janowicz was the defending champion, but he did not participate that year.
Andreas Haider-Maurer won the title, defeating Damir Džumhur in the final, 4–6, 6–1, 7–5.
Victor Hănescu was the defending champion but decided not to participate.
Andreas Haider-Maurer defeated Rubén Ramírez Hidalgo 6–4, 3–6, 6–4 in the final to take the title.
Andreas Haider-Maurer is the defending champion, and successfully defended his championship by defeating Gerald Melzer in all-Austrian final by a score of 6–7(9–11), 6–4, 6–2.
Juan Martín del Potro was the defending champion and successfully defended his title, defeating Roger Federer in the final, 7–6(7–3), 2–6, 6–4.
Andreas Haider-Maurer was the defending champion, but lost in the quarterfinals to Adam Pavlásek.
David Goffin won the title, beating Blaž Rola in the final, 6–4, 6–2.
Andrej Martin was the defending champion, but lost in the semifinals to Andreas Haider-Maurer.
Damir Džumhur won the title, beating Haider-Maurer in the final, 6–3, 6–3.
Andreas Haider-Maurer defended his title, beating Guillaume Rufin 6–3, 6–2
Julian Reister was the current champions, but chose not to compete this year.
Guillermo García López was the defending champion, but lost to Lamine Ouahab in the second round.
Martin Kližan won the title, defeating Daniel Gimeno Traver in the final, 6–2, 6–2.
Jozef Kovalík was the defending champion, but did not participate this year.
Florian Mayer was the defending champion but lost in the quarterfinals to Andreas Haider-Maurer.
Jean-Julien Rojer and Horia Tecău were the defending champions, and successfully defended their title, defeating James Cerretani and Leander Paes in the final, 6–2, 7–6(7–2).