The 2019 Fergana Challenger was a professional tennis tournament played on hard courts. It was the 20th edition of the tournament for men which was part of the 2019 ATP Challenger Tour, and the ninth edition of the event for women on the 2019 ITF Women's World Tennis Tour. It took place in Fergana, Uzbekistan, between 3–9 June (women) and 17–23 June (men).
The 2019 Dutch Open, also known by its sponsored name Van Mossel Kia Dutch Open, was a professional tennis tournament played on clay courts. It was the first edition of the Challenger tournament which was part of the 2019 ATP Challenger Tour. It took place in Amersfoort, Netherlands between 15 and 21 July 2019.
The 2019 Levene Gouldin & Thompson Tennis Challenger was a professional tennis tournament played on hard court. It was the 26th edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Binghamton, United States between 22 and 28 July 2019.
The 2019 Kentucky Bank Tennis Championships was a professional tennis tournament played on outdoor hard courts. It was the 24th (ATP) and 22nd (ITF) editions of the tournament and was part of the 2019 ATP Challenger Tour and the 2019 ITF Women's World Tennis Tour. It took place in Lexington, the United States, from 29 July–to 4 August 2019.
The 2021 Open Sopra Steria de Lyon was a professional tennis tournament played on clay courts. It was the 5th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Lyon, France, between 7 and 13 June 2021.
The 2021 ATP Salzburg Open was a professional tennis tournament played on outdoor clay courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Anif (Salzburg), Austria between 5 and 11 July 2021.
The 2021 Città di Como Challenger was a professional tennis tournament played on clay courts. It was the fifteenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Como, Italy between 30 August and 5 September 2021.
The 2021 Pekao Szczecin Open was a professional tennis tournament played on clay courts. It was the 28th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Szczecin, Poland between 13 and 19 September 2021.
The 2021 Open International de Tennis de Roanne was a professional tennis tournament played on indoor hard courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Roanne, France between 8 and 14 November 2021.
The 2021 Città di Forlì II was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Forlì, Italy between 29 November and 5 December 2021.
The 2022 Open Sopra Steria de Lyon was a professional tennis tournament played on clay courts. It was the 6th edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Lyon, France, between 6 and 12 June 2022.
The 2022 Platzmann-Sauerland Open was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Lüdenscheid, Germany, between 27 June and 3 July 2022.
The 2022 Dutch Open, also known by its sponsored name Van Mossel Kia Dutch Open, was a professional tennis tournament played on clay courts. It was the third edition of the Challenger tournament which was part of the 2022 ATP Challenger Tour. It took place in Amersfoort, Netherlands between 11 and 17 July 2022.
The 2022 Meerbusch Challenger was a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Meerbusch, Germany, between 8 and 14 August 2022.
The 2024 Chennai Open Challenger was a professional tennis tournament played on hard courts. It was the fourth edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Chennai, India between 5 and 11 February 2024.
The 2024 Bengaluru Open was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Bangalore, India from 12 to 18 February 2024.
The 2024 Pune Challenger was a professional tennis tournament played on hard courts. It was the eighth edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Pune, India from 19 to 25 February 2024.
The 2024 Zagreb Open was a professional tennis tournament played on clay courts. It was part of the 2024 ATP Challenger Tour. It took place in Zagreb, Croatia between 3 and 9 June 2024.
The 2024 Bratislava Open was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Bratislava, Slovakia between 10 and 16 June 2024.
The 2024 Tennis Open Karlsruhe was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Karlsruhe, Germany between 1 and 7 July 2024.
Maximilian Marterer 
Marcelo Demoliner / 
Guillermo Durán 
