| Week of | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
| September 6 | NÖ Open Tulln an der Donau, Austria Challenger 100 – Clay – 32S/16Q/16D Singles – Doubles | Mats Moraing 6–2, 6–1 | Hugo Gaston | Kamil Majchrzak Jiří Veselý | Filip Misolic Marc-Andrea Hüsler
Thiago Monteiro Dennis Novak |
Dustin Brown
Andrea Vavassori 7–6(7–5), 6–1 | Rafael Matos
Felipe Meligeni Alves |
Copa Sevilla Seville, Spain Challenger 90 – Clay – 32S/16Q/16D Singles – Doubles | Pedro Martínez 6–4, 6–1 | Roberto Carballés Baena | Marcelo Tomás Barrios Vera Carlos Taberner | Pablo Andújar
Luciano Darderi
Gian Marco Moroni Flavio Cobolli |
David Vega Hernández
Mark Vervoort 6–3, 6–7(7–9), [10–7] | Javier Barranco Cosano
Sergio Martos Gornés |
Banja Luka Challenger Banja Luka, Bosnia and Herzegovina Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Juan Manuel Cerúndolo 6–3, 6–1 | Nikola Milojević | Andrej Martin Tomás Martín Etcheverry | Carlos Gómez-Herrera
Zdeněk Kolář
Marko Topo Tseng Chun-hsin |
Antonio Šančić
Nino Serdarušić 6–3, 6–3 | Ivan Sabanov
Matej Sabanov |
Cassis Open Provence Cassis, France Challenger 80 – Hard – 32S/16Q/16D Singles – Doubles | Benjamin Bonzi 7–6(7–4), 6–4 | Lucas Pouille | Kacper Żuk Liam Broady | Luca Van Assche
Thanasi Kokkinakis Ramkumar Ramanathan Clément Chidekh |
Sriram Balaji
Ramkumar Ramanathan 6–4, 3–6, [10–6] | Hans Hach Verdugo
Miguel Ángel Reyes-Varela |
Kyiv Open Kyiv, Ukraine Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Franco Agamenone 7–5, 6–2 | Sebastián Báez | Ergi Kırkın Timofey Skatov | Filip Jianu
Dmitry Popko
Nuno Borges Oleksii Krutykh |
Orlando Luz
Aleksandr Nedovyesov 6–4, 6–4 | Denys Molchanov
Sergiy Stakhovsky |
| September 13 | Pekao Szczecin Open Szczecin, Poland Challenger 125 – Clay – 32S/16Q/16D Singles – Doubles | Zdeněk Kolář 7–6(7–4), 7–5 | Kamil Majchrzak | Nicola Kuhn Yannick Hanfmann | Marco Trungelliti
Jesper de Jong
Paweł Ciaś Holger Rune |
Santiago González
Andrés Molteni 2–6, 6–2, [15–13] | André Göransson
Nathaniel Lammons |
Open de Rennes Rennes, France Challenger 90 – Hard (i) – 32S/16Q/16D Singles – Doubles | Benjamin Bonzi 7–6(7–3), 7–6(7–3) | Mats Moraing | Richard Gasquet Arthur Rinderknech | Roman Safiullin
Teymuraz Gabashvili
Liam Broady Lucas Pouille |
Bart Stevens
Tim van Rijthoven 6–7(2–7), 7–5, [10–3] | Marek Gengel
Tomáš Macháč |
Cary Challenger II Cary, United States Challenger 80 – Hard – 32S/16Q/16D Singles – Doubles | Mitchell Krueger 6–4, 6–3 | Bjorn Fratangelo | Aleksandar Vukic Denis Kudla | Ryan Peniston
Zachary Svajda
Max Purcell Michael Mmoh |
William Blumberg
Max Schnur 6–4, 1–6, [10–4] | Stefan Kozlov
Peter Polansky |
Amex-Istanbul Challenger II Istanbul, Turkey Challenger 80 – Hard – 32S/16Q/16D Singles – Doubles | James Duckworth 6–4, 6–2 | Wu Tung-lin | Quentin Halys Borna Gojo | Hugo Grenier
Yasutaka Uchiyama
Geoffrey Blancaneaux Aldin Šetkić |
Radu Albot
Alexander Cozbinov 4–6, 7–5, [11–9] | Antonio Šančić
Artem Sitak |
Quito Challenger Quito, Ecuador Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Facundo Mena 6–4, 6–4 | Gonzalo Lama | Pol Martín Tiffon Alexis Gautier | Juan Pablo Ficovich Thiago Agustín Tirante
Genaro Alberto Olivieri Matthieu Perchicot |
Alejandro Gómez
Thiago Agustín Tirante 7–5, 6–7(5–7), [10–8] | Adrián Menéndez Maceiras
Mario Vilella Martínez |
| September 20 | Ambato La Gran Ciudad Ambato, Ecuador Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Thiago Agustín Tirante 7–5, 7–5 | Juan Pablo Varillas | Juan Pablo Ficovich Facundo Mena | Matías Zukas
Johan Nikles Gerald Melzer
Alexis Gautier |
Diego Hidalgo
Cristian Rodríguez 6–3, 4–6, [10–3] | Alejandro Gómez
Thiago Agustín Tirante |
Challenger Biel/Bienne Biel/Bienne, Switzerland Challenger 80 – Hard (i) – 32S/16Q/16D Singles – Doubles | Liam Broady 7–5, 6–3 | Marc-Andrea Hüsler | Tim van Rijthoven Dominic Stricker | Antoine Escoffier
João Sousa Ramkumar Ramanathan Tobias Kamke |
Ruben Bemelmans
Daniel Masur Walkover | Marc-Andrea Hüsler
Dominic Stricker |
Braga Open Braga, Portugal Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Thiago Monteiro 7–5, 7–5 | Nikola Milojević | Hugo Gaston Nikolás Sánchez Izquierdo | Andrea Arnaboldi
Jesper de Jong
Cedrik-Marcel Stebe Taro Daniel |
Nuno Borges
Francisco Cabral 6–3, 6–7(4–7), [10–5] | Jesper de Jong
Bart Stevens |
Bucharest Challenger Bucharest, Romania Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Jiří Lehečka 6–3, 6–2 | Filip Horanský | Stefano Travaglia
Lorenzo Giustino | Vitaliy Sachko
David Ionel
Thanasi Kokkinakis Riccardo Bonadio |
Ruben Gonzales
Hunter Johnson 1–6, 6–2, [10–3] | Maximilian Marterer
Lukáš Rosol |
Columbus Challenger Columbus, United States Challenger 80 – Hard (i) – 32S/16Q/16D Singles – Doubles | Stefan Kozlov 4–6, 6–2, 6–4 | Max Purcell | J. J. Wolf Aleksandar Vukic | Tennys Sandgren
Mikael Torpegaard
Alex Bolt Nicolás Mejía |
Stefan Kozlov
Peter Polansky 7–5, 7–6(7–5) | Andrew Lutschaunig
James Trotter |
| September 27 | Open d'Orléans Orléans, France Challenger 125 – Hard (i) – 32S/16Q/16D Singles – Doubles | Henri Laaksonen 6–1, 2–6, 6–2 | Dennis Novak | Corentin Moutet Jiří Veselý | Ruben Bemelmans
Hugo Grenier
Richard Gasquet Holger Rune |
Pierre-Hugues Herbert
Albano Olivetti 6–2, 2–6, [11–9] | Antoine Hoang
Kyrian Jacquet |
Lisboa Belém Open Lisbon, Portugal Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Dmitry Popko 6–2, 6–4 | Andrea Pellegrino | Andrej Martin Hugo Gaston | Frederico Ferreira Silva
Nikola Milojević
Cedrik-Marcel Stebe
João Domingues |
Jeevan Nedunchezhiyan
Purav Raja 7–6(7–5), 6–3 | Nuno Borges
Francisco Cabral |
Lima Challenger Lima, Peru Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Hugo Dellien 6–3, 7–5 | Camilo Ugo Carabelli | Johan Nikles Gerald Melzer | Renzo Olivo
Nicolás Kicker
Eduard Esteve Lobato
Juan Manuel Cerúndolo |
Julian Lenz
Gerald Melzer 7–6(7–4), 7–6(7–3) | Nicolás Barrientos
Fernando Romboli |
Murcia Open Murcia, Spain Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Tallon Griekspoor 3–6, 7–5, 6–3 | Roberto Carballés Baena | Mathias Bourgue Flavio Cobolli | Evan Furness
Andrea Collarini
Nicola Kuhn
Miljan Zekić |
Raúl Brancaccio
Flavio Cobolli 6–3, 7–6(7–4) | Alberto Barroso Campos
Roberto Carballés Baena |
Sibiu Open Sibiu, Romania Challenger 80 – Clay – 32S/16Q/16D Singles – Doubles | Stefano Travaglia 7–6(7–4), 6–2 | Thanasi Kokkinakis | Sumit Nagal Marc-Andrea Hüsler | Zdeněk Kolář
Geoffrey Blancaneaux
Alex Molčan Franco Agamenone |
Alexander Erler
Lucas Miedler 6–3, 6–1 | James Cerretani
Luca Margaroli |