| Singles | |
|---|---|
| 2014 Arimex Challenger Trophy | |
| Champion |  Andreas Haider-Maurer |
| Runner-up |  Antonio Veić |
| Score | 2–6, 6–3, 7–6(7–4) |
Julian Reister was the current champions, but chose not to compete this year.
Andreas Haider-Maurer won the title by defeating Antonio Veić 2–6, 6–3, 7–6(7–4) in the final.
Robin Haase (second round)
Blaž Rola (quarterfinals)
Pere Riba (quarterfinals) Albert Montañés (second round) Andreas Haider-Maurer (champion)
Adrian Ungur (second round)
Márton Fucsovics (semifinals) Victor Hănescu (second round)| Semifinals | Final | ||||||||||||
 Radu Albot | 3 | 6 | 2 | ||||||||||
| 5 | Andreas Haider-Maurer | 6 | 3 | 6 | |||||||||
| 5 | Andreas Haider-Maurer | 2 | 6 | 77 | |||||||||
| Antonio Veić | 6 | 3 | 64 | ||||||||||
| 7 | Márton Fucsovics | 2 | 3 | ||||||||||
| Antonio Veić | 6 | 6 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | R Haase | 6 | 6 | ||||||||||||||||||||||||
 J Kovalik | 4 | 1 | 1 | R Haase | 6 | 3 | 0 | ||||||||||||||||||||
| R Albot | 5 | 6 | 6 | R Albot | 1 | 6 | 6 | ||||||||||||||||||||
| Q | V Crivoi | 7 | 3 | 2 | R Albot | 6 | 61 | 6 | |||||||||||||||||||
| PR |  S Darcis | 5 | 6 | 3 |  M Cecchinato | 2 | 77 | 4 | |||||||||||||||||||
| M Cecchinato | 7 | 3 | 6 | M Cecchinato | 7 | 1 | 6 | ||||||||||||||||||||
| Q | F Škugor | 4 | 64 | 6 | A Ungur | 5 | 6 | 4 | |||||||||||||||||||
| 6 | A Ungur | 6 | 77 | R Albot | 3 | 6 | 2 | ||||||||||||||||||||
| 4 | A Montañés | 3 | 6 | 77 | 5 | A Haider-Maurer | 6 | 3 | 6 | ||||||||||||||||||
| A De Greef | 6 | 3 | 61 | 4 | A Montañés | 1 | 5 | ||||||||||||||||||||
| WC |  J Hájek | 6 | 6 | WC | J Hájek | 6 | 7 | ||||||||||||||||||||
| M Copil | 4 | 4 | WC | J Hájek | 5 | 65 | |||||||||||||||||||||
| Alt | J Mertl | 6 | 6 | 5 | A Haider-Maurer | 7 | 77 | ||||||||||||||||||||
| WC |  J Choinski | 1 | 0 | Alt | J Mertl | 2 | 3 | ||||||||||||||||||||
| SE |  B Balleret | 2 | 1 | 5 | A Haider-Maurer | 6 | 6 | ||||||||||||||||||||
| 5 | A Haider-Maurer | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | M Fucsovics | 6 | 7 | ||||||||||||||||||||||||
| Q |  A Smirnov | 3 | 5 | 7 | M Fucsovics | 6 | 3 | 6 | |||||||||||||||||||
| A Arnaboldi | 4 | 2 |  J Kubler | 4 | 6 | 4 | |||||||||||||||||||||
| J Kubler | 6 | 6 | 7 | M Fucsovics | 7 | 6 | |||||||||||||||||||||
| WC | M Mečíř Jr. | 7 | 6 | 3 | P Riba | 5 | 3 | ||||||||||||||||||||
| WC | K Beck | 5 | 2 | WC | M Mečíř Jr. | 3 | 6 | 5 | |||||||||||||||||||
| J Pospíšil | 3 | 4 | 3 | P Riba | 6 | 4 | 7 | ||||||||||||||||||||
| 3 | P Riba | 6 | 6 | 7 | M Fucsovics | 2 | 3 | ||||||||||||||||||||
| 8 | V Hănescu | 7 | 6 | A Veić | 6 | 6 | |||||||||||||||||||||
| M Delić | 5 | 2 | 8 | V Hănescu | 4 | 64 | |||||||||||||||||||||
| A Veić | 6 | 7 | A Veić | 6 | 77 | ||||||||||||||||||||||
| P Torebko | 4 | 5 | A Veić | 7 | 6 | ||||||||||||||||||||||
| F Volandri | 6 | 6 | 2 | B Rola | 5 | 3 | |||||||||||||||||||||
| Q | D Novak | 3 | 0 | F Volandri | 3 | 2 | |||||||||||||||||||||
 U Ignatik | 77 | 5 | 4 | 2 | B Rola | 6 | 6 | ||||||||||||||||||||
| 2 | B Rola | 65 | 7 | 6 | |||||||||||||||||||||||
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.
Matthias Bachinger was the defending champion but decided not to participate.
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.
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Victor Hănescu was the defending champion but decided not to participate.
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