| Singles | |
|---|---|
| 2015 Marburg Open | |
| Champion |  Íñigo Cervantes |
| Runner-up |  Nils Langer |
| Final score | 2–6, 7–6(7–3), 6–3 |
Horacio Zeballos was the defending champion, but he did not participate this year.
Íñigo Cervantes won the title defeating Nils Langer in the final, [1] 2–6, 7–6(7–3), 6–3.
Taro Daniel (first round)
Paul-Henri Mathieu (second round)
Farrukh Dustov (first round)
Andrey Golubev (first round) Íñigo Cervantes (champion)
Jürgen Zopp (first round)
Renzo Olivo (first round) Tobias Kamke (second round)| Semifinals | Final | ||||||||||||
 Karen Khachanov | 62 | 4 | |||||||||||
| 5 | Íñigo Cervantes | 77 | 6 | ||||||||||
| 5 | Íñigo Cervantes | 2 | 77 | 6 | |||||||||
| Nils Langer | 6 | 63 | 3 | ||||||||||
| Nils Langer | 6 | 6 | |||||||||||
| WC | Daniel Brands | 2 | 4 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | T Daniel | 6 | 3 | 4 | |||||||||||||||||||||||
 M Bašić | 3 | 6 | 6 | M Bašić | 3 | 710 | 77 | ||||||||||||||||||||
| WC | D Masur | 2 | 65 |  U Ignatik | 6 | 68 | 62 | ||||||||||||||||||||
| U Ignatik | 6 | 77 | M Bašić | 0 | 5 | ||||||||||||||||||||||
| K Khachanov | 6 | 6 | K Khachanov | 6 | 7 | ||||||||||||||||||||||
| PR | P Riba | 4 | 4 | K Khachanov | 5 | 77 | 6 | ||||||||||||||||||||
| T Pütz | 4 | 1 | 8 | T Kamke | 7 | 62 | 3 | ||||||||||||||||||||
| 8 | T Kamke | 6 | 6 | K Khachanov | 62 | 4 | |||||||||||||||||||||
| 4 | A Golubev | 4 | 77 | 3 | 5 | Í Cervantes | 77 | 6 | |||||||||||||||||||
| G Mina | 6 | 63 | 6 | G Mina | 2 | 2 | |||||||||||||||||||||
| Q |  J Šátral | 66 | 6 | 6 | Q | J Šátral | 6 | 6 | |||||||||||||||||||
| Q | E Donskoy | 78 | 4 | 3 | Q | J Šátral | 6 | 3 | 2 | ||||||||||||||||||
| LL |  L Giustino | 3 | 1 | 5 | Í Cervantes | 1 | 6 | 6 | |||||||||||||||||||
| A Beck | 6 | 6 | A Beck | 2 | 6 | 2 | |||||||||||||||||||||
| WC | J Choinski | 3 | 4 | 5 | Í Cervantes | 6 | 3 | 6 | |||||||||||||||||||
| 5 | Í Cervantes | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | J Zopp | 65 | 3 | ||||||||||||||||||||||||
| N Langer | 77 | 6 | N Langer | 77 | 6 | ||||||||||||||||||||||
 J Kubler | 6 | 6 | J Kubler | 64 | 3 | ||||||||||||||||||||||
 G Panfil | 2 | 3 | N Langer | 77 | |||||||||||||||||||||||
| Q | M Ledovskikh | 710 | 4 | 6 | Q |  A De Greef | 61 | r | |||||||||||||||||||
 L Djere | 68 | 6 | 4 | Q | M Ledovskikh | 62 | 65 | ||||||||||||||||||||
| Q | A De Greef | 6 | 6 | Q | A De Greef | 77 | 77 | ||||||||||||||||||||
| 3 | F Dustov | 3 | 2 | N Langer | 6 | 6 | |||||||||||||||||||||
| 7 | R Olivo | 4 | 4 | WC | D Brands | 2 | 4 | ||||||||||||||||||||
| WC | D Brands | 6 | 6 | WC | D Brands | 4 | 6 | 6 | |||||||||||||||||||
| M Authom | 3 | 4 |  G Lapentti | 6 | 4 | 4 | |||||||||||||||||||||
| G Lapentti | 6 | 6 | WC | D Brands | 6 | 6 | |||||||||||||||||||||
| SE |  R Dutra Silva | 6 | 6 | SE | R Dutra Silva | 3 | 2 | ||||||||||||||||||||
 J Kovalík | 4 | 0 | SE | R Dutra Silva | 6 | ||||||||||||||||||||||
| WC | J Lenz | 6 | 3 | 3 | 2 | P-H Mathieu | 3r | ||||||||||||||||||||
| 2 | P-H Mathieu | 4 | 6 | 6 | |||||||||||||||||||||||
Iñigo Cervantes-Huegun was the defender of title, but he was eliminated after retired in first round match against Andrey Kuznetsov.
Ivan Sergeyev defeated Marek Semjan 7–6(2), 6–1 in the final.
Juan Martín del Potro defended the title by winning 6–4, 6–2 against Richard Gasquet.
Carlos Berlocq was the defending champion, but lost to João Sousa in the semifinals.
Pablo Cuevas won his first ATP World Tour title, defeating Sousa in the final, 6–2, 6–1.
Mikhail Youzhny was the defending champion, but lost to Robin Haase in the quarterfinals.
Pablo Andújar won the title, defeating Juan Mónaco in the final, 6–3, 7–5.
Leonardo Mayer was the defending champion, but chose not to participate this year.
Andy Murray was the defending champion, but chose not to participate this year.
Pablo Cuevas is the defending champion, and despite returning to defend the title, he lost to Guido Pella in the semifinals.
Viktor Troicki was the defending champion and successfully defended his title, defeating Grigor Dimitrov in the final, 2–6, 6–1, 7–6(9–7).
Novak Djokovic defeated the defending champion Andy Murray in the final, 6–2, 3–6, 6–3, to win the men's singles title at the 2016 Madrid Open. It was Djokovic's second title in Madrid and his record 29th ATP Masters 1000 title.
Andy Murray defeated the two-time defending champion Novak Djokovic in the final, 6–3, 6–3, to win the men's singles tennis title at the 2016 Italian Open.
Filip Krajinović was the defending champion but chose not to defend his title.
Philipp Kohlschreiber was the defending champion, but lost in the second round to Karen Khachanov.
Novak Djokovic was the four-time defending champion, but withdrew with an elbow injury before the tournament began.
Novak Djokovic was the defending champion, but lost in the semifinals to Roberto Bautista Agut.
David Ferrer was the defending champion, but withdrew from his semifinal match against Andy Murray.
Andy Murray defeated John Isner in the final, 6–3, 6–7(4–7), 6–4, to win the singles title at the 2016 Paris Masters. By reaching the final, Murray clinched the world No. 1 ranking for the first time in his career.
Facundo Bagnis was the defending champion but chose not to defend his title.
Defending champion Rafael Nadal successfully defended his title, defeating Dominic Thiem in the final, 6–4, 6–1. It was his record-extending tenth Barcelona Open title.
Nicolás Almagro was the defending champion, but lost in the quarterfinals to Pablo Carreño Busta.
Casper Ruud was the defending champion but retired in the first round facing Íñigo Cervantes.