| Singles | |
|---|---|
| 2016 STRABAG Challenger Open | |
| Champion |  Steve Darcis |
| Runner-up |  Jordi Samper Montaña |
| Score | 6–3, 6–4 |
Robin Haase was the defending champion but chose not to defend his title.
Steve Darcis won the title after defeating Jordi Samper Montaña 6–3, 6–4 in the final.
Íñigo Cervantes (first round)
Adam Pavlásek (first round)
Igor Sijsling (quarterfinals) Daniel Gimeno Traver (second round) Steve Darcis (champion) Kimmer Coppejans (quarterfinals)
Constant Lestienne (second round)
Steven Diez (semifinals)| Semifinals | Final | ||||||||||||
| Jordi Samper Montaña | 7 | 65 | 6 | ||||||||||
 Akira Santillan | 5 | 77 | 4 | ||||||||||
| Jordi Samper Montaña | 3 | 4 | |||||||||||
| 5 | Steve Darcis | 6 | 6 | ||||||||||
| 5 | Steve Darcis | 6 | 6 | ||||||||||
| 8 | Steven Diez | 4 | 4 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Í Cervantes | 4 | 5 | ||||||||||||||||||||||||
 A Ghem | 6 | 7 | A Ghem | 4 | 3 | ||||||||||||||||||||||
| Y Reuter | 3 | 6 | 3 | J Samper-Montaña | 6 | 6 | |||||||||||||||||||||
| J Samper-Montaña | 6 | 4 | 6 | J Samper-Montaña | 6 | 78 | |||||||||||||||||||||
| J Šátral | 1 | 6 | 6 | 6 | K Coppejans | 0 | 66 | ||||||||||||||||||||
| Q |  M Eriksson | 6 | 3 | 3 | J Šátral | 1 | 1 | ||||||||||||||||||||
| Alt |  R Bellotti | 0 | 2 | 6 | K Coppejans | 6 | 6 | ||||||||||||||||||||
| 6 | K Coppejans | 6 | 6 | J Samper-Montaña | 7 | 65 | 6 | ||||||||||||||||||||
| 4 | D Gimeno Traver | 6 | 6 | A Santillan | 5 | 77 | 4 | ||||||||||||||||||||
 D Kuzmanov | 4 | 4 | 4 | D Gimeno Traver | 6 | 4 | 65 | ||||||||||||||||||||
| WC |  J Melzer | 6 | 1 | 2 | Q |  H Hurkacz | 3 | 6 | 77 | ||||||||||||||||||
| Q | H Hurkacz | 4 | 6 | 6 | Q | H Hurkacz | 5 | 5 | |||||||||||||||||||
| A Santillan | 4 | 78 | 77 | A Santillan | 7 | 7 | |||||||||||||||||||||
| J De Loore | 6 | 66 | 65 | A Santillan | 6 | 6 | |||||||||||||||||||||
 A Vatutin | 6 | 4 | 2 | 7 | C Lestienne | 2 | 0 | ||||||||||||||||||||
| 7 | C Lestienne | 2 | 6 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | S Darcis | 6 | 6 | ||||||||||||||||||||||||
| PR | F de Paula | 1 | 4 | 5 | S Darcis | 6 | 6 | ||||||||||||||||||||
| Robin Staněk | 6 | 6 | R Staněk | 4 | 1 | ||||||||||||||||||||||
| WC |  Martin Blaško | 3 | 2 | 5 | S Darcis | 6 | 6 | ||||||||||||||||||||
| WC | Patrik Fabian | 4 | 3 | 3 | I Sijsling | 1 | 4 | ||||||||||||||||||||
| Q | G Blancaneaux | 6 | 6 | Q | G Blancaneaux | 3 | 4 | ||||||||||||||||||||
 L Đere | 6 | 2 | 5 | 3 | I Sijsling | 6 | 6 | ||||||||||||||||||||
| 3 | I Sijsling | 4 | 6 | 7 | 5 | S Darcis | 6 | 6 | |||||||||||||||||||
| 8 | S Diez | 6 | 7 | 8 | S Diez | 4 | 4 | ||||||||||||||||||||
| Clément Geens | 3 | 5 | 8 | S Diez | 77 | 3 | 77 | ||||||||||||||||||||
| N Gombos | 6 | 6 | N Gombos | 64 | 6 | 65 | |||||||||||||||||||||
| G Sakharov | 2 | 2 | 8 | S Diez | 6 | 6 | |||||||||||||||||||||
| Q | R Jebavý | 6 | 6 | M Michalička | 3 | 4 | |||||||||||||||||||||
| WC | Dominik Šproch | 3 | 1 | Q | R Jebavý | 7 | 2 | 2 | |||||||||||||||||||
| M Michalička | 2 | 6 | 6 | M Michalička | 5 | 6 | 6 | ||||||||||||||||||||
| 2 | A Pavlásek | 6 | 3 | 2 | |||||||||||||||||||||||
Steve Darcis was the defending champion, but Albert Montañés defeated him 1–6, 7–5, 6–3, in the final.
Andy Murray was the defending champion, but chose not to participate this year.
Nikolay Davydenko won in the final 0–6, 7–6(10–8), 6–4, against Rafael Nadal.
Ivan Ljubičić was the defending champion but lost in the final against Gaël Monfils, 6–2, 5–7, 6–1.
Rajeev Ram is the defending champion, but lost to Dustin Brown at the semifinals.
Brown won the title, by defeating Igor Sijsling 6–3, 7–6(3) in the final.
Denis Gremelmayr was the defending champion but decided not to participate.
Steve Darcis won in the final 6–3, 4–6, 6–2 against Marsel İlhan.
Alex Bogomolov Jr. was the defending champion but decided not to participate.
Michaël Llodra was the defending champion.
David Goffin defeated Ruben Bemelmans 6–4, 3–6, 6–3 in the final to win the title.
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.
David Ferrer was the defending champion, but lost in the first round to Xavier Malisse.
Qualifier Nicolas Mahut won the first title of his career, beating Stanislas Wawrinka in the final, 6–3, 6–4.
Gaël Monfils was the defending champion, but lost to Richard Gasquet in the semifinals.
Gasquet went on to win the title, defeating Jerzy Janowicz in the final, 3–0, ret.
Kenny de Schepper was the defending champion, but lost in the quarterfinals.
The previous year's runner-up Norbert Gombos won the title, defeating Benoît Paire in the final, 6–1, 7–6(7–4).
Steve Darcis was the defending champion, but lost in the second round. Malek Jaziri won the title defeating Igor Sijsling in the final 5–7, 7–5, 6–4
Stan Wawrinka was the defending champion, but chose not to participate this year.
Mathias Bourgue was the defending champion, but lost in the first round to Scott Griekspoor.
Mikhail Youzhny was the defending champion but chose not to defend his title.
Paolo Lorenzi was the defending champion but chose not to defend his title.
Sam Querrey was the defending champion, but lost in the quarterfinals to Juan Martín del Potro.
Diego Schwartzman was the defending champion, but lost in the semifinals to Marin Čilić.
Steve Darcis was the defending champion but chose not to defend his title.
Damir Džumhur was the defending champion, but retired from his quarterfinal match against Jordan Thompson.