| Week of | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists | 
|---|
| September 1 | AON Open Challenger Genoa, Italy
 Clay – €85,000+H – 32S/32Q/16D
 Singles – Doubles
 |  Albert Ramos 6–1, 7–5
 |  Mate Delić |  Márton Fucsovics 
  Andreas Beck |  Aljaž Bedene 
  Jason Kubler 
  Marco Cecchinato 
  Viktor Troicki | 
|  Daniele Bracciali 
  Potito Starace 6–3, 6–4
 |  Frank Moser 
  Alexander Satschko | 
| Seguros Bolívar Open Medellín Medellín, Colombia
 Clay – $50,000+H – 32S/28Q/16D
 Singles – Doubles
 |  Austin Krajicek 7–5, 6–3
 |  João Souza |  André Ghem 
  Facundo Bagnis |  Alejandro González 
  Carlos Salamanca 
  Guilherme Clezar 
  Gonzalo Lama | 
|  Austin Krajicek 
  César Ramírez 6–3, 7–5
 |  Roberto Maytín 
  Andrés Molteni | 
| TEAN International Alphen aan den Rijn, Netherlands
 Clay – €42,500 – 32S/32Q/16D
 Singles – Doubles
 |  Jesse Huta Galung 6–3, 6–4
 |  Daniel Muñoz de la Nava |  Tristan Lamasine 
  Victor Hănescu |  Antal van der Duim 
  Daniel Gimeno Traver 
  Kimmer Coppejans 
  Igor Sijsling | 
|  Antal van der Duim 
  Boy Westerhof 6–1, 6–3
 |  Rubén Ramírez Hidalgo 
  Matteo Viola | 
| Shanghai Challenger Shanghai, China
 Hard – $50,000 – 32S/32Q/16D
 Singles – Doubles
 |  Yoshihito Nishioka 6–4, 6–7(5–7), 7–6(7–3)
 |  Somdev Devvarman |  Thomas Fabbiano 
  Luca Vanni |  Go Soeda 
  Danai Udomchoke 
  Yuki Bhambri 
  Wu Di | 
|  Yuki Bhambri 
  Divij Sharan 7–6(7–2),6–7(4–7), [10–8]
 |  Somdev Devvarman 
  Sanam Singh | 
| Trophée des Alpilles Saint-Rémy-de-Provence, France
 Hard – €42,500 – 32S/26Q/16D
 Singles – Doubles
 |  Nicolas Mahut 6–7(3–7), 6–4, 6–3
 |  Vincent Millot |  Pierre-Hugues Herbert 
  Sergiy Stakhovsky |  Alexander Zverev 
  Norbert Gomboš 
  Denys Molchanov 
  Maxime Chazal | 
|  Pierre-Hugues Herbert 
  Konstantin Kravchuk 6–1, 7–6(7–3)
 |  David Guez 
  Martin Vaïsse | 
| BRD Brașov Challenger Brașov, Romania
 Clay – €35,000+H – 32S/32Q/16D
 Singles – Doubles
 |  Andreas Haider-Maurer 6–3, 6–2
 |  Guillaume Rufin |  Jaroslav Pospíšil 
  Aslan Karatsev |  Petru-Alexandru Luncanu 
  Adrian Ungur 
  Adrian Sikora 
  Laurynas Grigelis | 
|  Daniele Giorgini 
  Adrian Ungur 4–6, 7–6(7–4), [10–1]
 |  Aslan Karatsev 
  Valery Rudnev | 
| September 8 | Pekao Szczecin Open Szczecin, Poland
 Clay – €106,500+H – 32S/31Q/16D
 Singles – Doubles
 |  Dustin Brown 6–4, 6–3
 |  Jan-Lennard Struff |  Facundo Argüello 
  Lucas Pouille |  Potito Starace 
  Aleksandr Nedovyesov 
  Micke Kontinen 
  Kamil Majchrzak | 
|  Dustin Brown 
  Jan-Lennard Struff 6–2, 6–4
 |  Tomasz Bednarek 
  Igor Zelenay | 
| Banja Luka Challenger Banja Luka, Bosnia and Herzegovina
 Clay – €64,000+H – 32S/14Q/16D
 Singles – Doubles
 |  Viktor Troicki 7–5, 4–6, 7–5
 |  Albert Ramos |  Blaž Rola 
  Andreas Haider-Maurer |  Kimmer Coppejans 
  Aljaž Bedene 
  Jaroslav Pospíšil 
  Gleb Sakharov | 
|  Dino Marcan 
  Antonio Šančić 7–5, 6–4
 |  Jaroslav Pospíšil 
  Adrian Sikora | 
| Amex-Istanbul Challenger Istanbul, Turkey
 Hard – $75,000 – 32S/19Q/16D
 Singles – Doubles
 |  Adrian Mannarino 6–0, 2–0 retired
 |  Tatsuma Ito |  James Ward 
  Philipp Petzschner |  Tobias Kamke 
  Louk Sorensen 
  Jimmy Wang 
  Marsel İlhan | 
|  Colin Fleming 
  Jonathan Marray 6–4, 2–6, [10–8]
 |  Jordan Kerr 
  Fabrice Martin | 
| Copa Sevilla Sevilla, Spain
 Clay – €42,500+H – 32S/20Q/16D
 Singles – Doubles
 |  Pablo Carreño 6–4, 6–1
 |  Taro Daniel |  Íñigo Cervantes Huegun 
  Boy Westerhof |  Adrián Menéndez Maceiras 
  David Vega Hernández 
  Oriol Roca Batalla 
  Daniel Muñoz de la Nava | 
|  Antal van der Duim 
  Boy Westerhof 7–6(7–3), 6–4
 |  James Cluskey 
  Jesse Huta Galung | 
| Challenger Pulcra Lachiter Biella Biella, Italy
 Clay – €42,500 – 32S/16Q/16D
 Singles – Doubles
 |  Matteo Viola 7–5, 6–1
 |  Filippo Volandri |  Benjamin Balleret 
  Marco Cecchinato |  Henri Laaksonen 
  Andrea Arnaboldi 
  Jan Hájek 
  Jason Kubler | 
|  Marco Cecchinato 
  Matteo Viola 7–5, 6–0
 |  Frank Moser 
  Alexander Satschko | 
| September 15 | Türk Telecom İzmir Cup İzmir, Turkey
 Hard – €106,500 – 32S/25Q/16D
 Singles – Doubles
 |  Borna Ćorić 6–1, 6–7(7–9), 6–4
 |  Malek Jaziri |  Mikhail Ledovskikh 
  Marsel İlhan |  Illya Marchenko 
  Mirza Bašić 
  Egor Gerasimov 
  Tomislav Brkić | 
|  Ken Skupski 
  Neal Skupski 6–1, 6–4
 |  Malek Jaziri 
  Alexander Kudryavtsev | 
| Arimex Challenger Trophy Trnava, Slovakia
 Clay – €42,500+H – 32S/32Q/16D
 Singles – Doubles
 |  Andreas Haider-Maurer 2–6, 6–3, 7–6(7–4)
 |  Antonio Veić |  Radu Albot 
  Márton Fucsovics |  Marco Cecchinato 
  Jan Hájek 
  Pere Riba 
  Blaž Rola | 
|  Roman Jebavý 
  Jaroslav Pospíšil 6–4, 6–2
 |  Stephan Fransen 
  Robin Haase | 
| Morocco Tennis Tour – Meknes Meknes, Morocco
 Clay – €42,500 – 32S/17Q/16D
 Singles – Doubles
 |  Kimmer Coppejans 4–6, 6–2, 6–2
 |  Lucas Pouille |  Roberto Carballés Baena 
  Matteo Viola |  Pablo Carreño 
  Julien Obry 
  Mohamed Safwat 
  Yannik Reuter | 
|  Hans Podlipnik Castillo 
  Stefano Travaglia 6–2, 6–7(4–7), [10–7]
 |  Gerard Granollers 
  Jordi Samper Montaña | 
| Campeonato Internacional de Tênis de Campinas
 Campinas, Brazil
 Clay – $40,000+H – 32S/32Q/16D
 Singles – Doubles
 |  Diego Sebastián Schwartzman 4–6, 6–4, 7–5
 |  André Ghem |  Guido Andreozzi 
  Gianni Mina |  Guilherme Clezar 
  José Pereira 
  Ivo Klec 
  Richard Becker | 
|  Facundo Bagnis 
  Diego Sebastián Schwartzman 7–6(7–4), 5–7, [10–7]
 |  André Ghem 
  Fabrício Neis | 
| Quito Challenger Quito, Ecuador
 Clay – $40,000+H – 32S/16Q/16D
 Singles – Doubles
 |  Horacio Zeballos 6–4, 7–6(11–9)
 |  Nicolás Jarry |  Andrés Molteni 
  João Souza |  Gonzalo Escobar 
  Hugo Dellien 
  Juan Ignacio Londero 
  Chase Buchanan | 
|  Marcelo Demoliner 
  João Souza 6–4, 6–4
 |  Duilio Beretta 
  Martín Cuevas | 
| September 22 | Open d'Orléans Orléans, France
 Hard (i) – €106,500+H – 32S/28Q/16D
 Singles – Doubles
 |  Sergiy Stakhovsky 6–2, 7–5
 |  Thomaz Bellucci |  Jiří Veselý 
  Paul-Henri Mathieu |  Tim Pütz 
  Andreas Beck 
  Martin Fischer 
  Igor Sijsling | 
|  Thomaz Bellucci 
  André Sá 5–7, 6–4, [10–8]
 |  James Cerretani 
  Andreas Siljeström | 
| Napa Valley Challenger Napa, United States
 Hard – $50,000 – 32S/32Q/16D
 Singles – Doubles
 |  Sam Querrey 6–3, 6–1
 |  Tim Smyczek |  Alex Bolt 
  Jared Donaldson |  Michael Russell 
  John Millman 
  Julian Lenz 
  Liam Broady | 
|  Peter Polansky 
  Adil Shamasdin 7–6(7–0), 6–1
 |  Bradley Klahn 
  Tim Smyczek | 
| Sibiu Open Sibiu, Romania
 Clay – €42,500+H – 32S/24Q/16D
 Singles – Doubles
 |  Jason Kubler 6–4, 6–1
 |  Radu Albot |  Pere Riba 
  Potito Starace |  Victor Crivoi 
  Flavio Cipolla 
  Tomislav Brkić 
  Jozef Kovalík | 
|  Potito Starace 
  Adrian Ungur 7–5, 6–2
 |  Alexandru-Daniel Carpen 
  Marius Copil | 
| Morocco Tennis Tour – Kenitra Kenitra, Morocco
 Clay – €42,500 – 32S/25Q/16D
 Singles – Doubles
 |  Daniel Gimeno Traver 6–3, 6–4
 |  Albert Ramos |  Roberto Carballés Baena 
  Damir Džumhur |  Lucas Pouille 
  Aljaž Bedene 
  Stefano Travaglia 
  Rui Machado | 
|  Dino Marcan 
  Antonio Šančić 6–1, 7–6(7–3)
 |  Gerard Granollers 
  Jordi Samper Montaña | 
| Seguros Bolívar Open Pereira Pereira, Colombia
 Clay – $40,000+H – 32S/24Q/16D
 Singles – Doubles
 |  Víctor Estrella Burgos 7–6(7–5), 3–6, 7–6(8–6)
 |  João Souza |  Guido Pella 
  Agustín Velotti |  Daniel Muñoz de la Nava 
  Toni Androić 
  Andrés Molteni 
  Christian Lindell | 
|  Nicolás Barrientos 
  Eduardo Struvay 3–6, 6–3, [11–9]
 |  Guido Pella 
  Horacio Zeballos | 
| Aberto de Tênis do Rio Grande do Sul Porto Alegre, Brazil
 Clay – $40,000+H – 32S/29Q/16D
 Singles – Doubles
 |  Carlos Berlocq 6–4, 4–6, 6–0
 |  Diego Sebastián Schwartzman |  Gianni Mina 
  Guido Andreozzi |  Gastão Elias 
  Guilherme Clezar 
  Facundo Argüello 
  Martín Alund | 
|  Guido Andreozzi 
  Guillermo Durán 6–3, 6–3
 |  Facundo Bagnis 
  Diego Sebastián Schwartzman | 
| September 29 | Ethias Trophy Mons, Belgium
 Hard (i) – €106,500+H – 32S/27Q/16D
 Singles – Doubles
 |  David Goffin 6–3, 6–3
 |  Steve Darcis |  Marsel İlhan 
  Jiří Veselý |  Alexander Zverev 
  Tobias Kamke 
  Ruben Bemelmans 
  Gerald Melzer | 
|  Marc Gicquel 
  Nicolas Mahut 6–3, 6–4
 |  Andre Begemann 
  Julian Knowle | 
| Sacramento Challenger Sacramento, United States
 Hard – $100,000– 32S/32Q/16D
 Singles – Doubles
 |  Sam Querrey 6–3, 6–4
 |  Stefan Kozlov |  John Millman 
  Tim Smyczek |  Jared Donaldson 
  Bjorn Fratangelo 
  Rhyne Williams 
  Denis Kudla | 
|  Adam Hubble 
  John-Patrick Smith 6–3, 6–2
 |  Peter Polansky 
  Adil Shamasdin | 
| Claro Open Cali Cali, Colombia
 Clay – $40,000+H – 32S/23Q/16D
 Singles – Doubles
 |  Paolo Lorenzi 4–6, 6–3, 6–3
 |  Víctor Estrella Burgos |  Guido Andreozzi 
  João Souza |  Facundo Bagnis 
  Nicolás Jarry 
  Christian Lindell 
  Alejandro González | 
|  Guido Andreozzi 
  Guillermo Durán 6–3, 6–4
 |  Alejandro González 
  César Ramírez |