The 2018 Casino Admiral Trophy was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Marbella, Spain between 26 and 31 March 2018.
The 2018 Swiss Indoors was a men's tennis tournament played on indoor hard courts. It was the 49th edition of the event, and part of the 500 series of the 2018 ATP World Tour. It was held at the St. Jakobshalle in Basel, Switzerland, from 22 October through 28 October 2018. First-seeded Roger Federer won the singles title.
The 2019 Brisbane International was a tournament on the 2019 ATP Tour and 2019 WTA Tour. It was played on outdoor hard courts in Brisbane, Queensland, Australia. It was the eleventh edition of the tournament and took place at the Queensland Tennis Centre in Tennyson. It was held from 30 December 2018 to 6 January 2019 as part of the Australian Open Series in preparation for the first Grand Slam of the year.
The 2019 Mexican Open was a professional tennis tournament played on outdoor hard courts. It was the 26th edition of the men's Mexican Open, and was part of the 2019 ATP Tour and the 2019 WTA Tour. It took place in Acapulco, Mexico between 25 February and 2 March 2019, at the Princess Mundo Imperial.
The 2019 Hamburg European Open was a men's tennis tournament played on outdoor red clay courts. It was the 113th edition of the German Open Tennis Championships and part of the ATP Tour 500 series of the 2019 ATP Tour. It took place at the Am Rothenbaum in Hamburg, Germany, from 22 July until 28 July 2019. Fourth-seeded Nikoloz Basilashvili won the singles title.
The 2019 Stockholm Open was a professional men's tennis tournament played on indoor hard courts. It was the 51st edition of the tournament, and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place at the Kungliga tennishallen in Stockholm, Sweden from 14 to 20 October 2019. Fourth-seeded Denis Shapovalov won the singles title.
The 2020 Adelaide International was a tournament on the 2020 ATP Tour and 2020 WTA Tour. It was played on outdoor hard courts in Adelaide, Australia.
The 2020 Bett1Hulks Indoors is a ATP tournament organised for male professional tennis players, held in Cologne, Germany, in mid-October 2020 on indoor hard courts. It was primarily organised due to the cancellation of many tournaments during the 2020 season, because of the ongoing COVID-19 pandemic. It is the first edition of the tournament and took place at the Lanxess Arena in Cologne, Germany, from October 12 through 18, 2020.
The 2020 Forte Village Sardegna Open was an ATP tournament organised for male professional tennis players, held in Sardinia, Italy, in mid-October 2020 on outdoor clay courts. It was primarily organised due to the cancellation of many tournaments during the 2020 season, because of the ongoing COVID-19 pandemic. It was the first edition of the tournament, and it took place in Pula, Italy, from October 12 through 18, 2020.
First seed Alexander Zverev won the tournament, defeating second seed Diego Schwartzman 6–2, 6–1 in the final. This was the first edition of the tournament, primarily organised due to the cancellation of many tournaments in 2020, due to the COVID-19 pandemic.
The 2021 Murray River Open was a tournament on the 2021 ATP Tour. It was played on outdoor hard courts in Melbourne, Australia. It was organised as a lead-up tournament to the 2021 Australian Open, and was held at the same venue, due to other tournaments in Australia being cancelled as a result from the COVID-19 pandemic. This tournament took place simultaneously with the 2021 Great Ocean Road Open and the 2021 ATP Cup.
The 2021 Serbia Open was a tennis tournament played on outdoor clay courts. It was the 5th and 1st edition of the event for male and female professional tennis players, respectively. It was part of the 2021 ATP Tour and the 2021 WTA Tour and took place in Belgrade, Serbia; in mid-April for men and mid-May for women. A second ATP tournament, called the Belgrade Open, was played in men's singles the week before the French Open.
The 2021 Hamburg European Open was a combined men's and women's tennis tournament played on outdoor clay courts. It was the 115th edition of the event for the men and the 19th edition for the women, after last tournament being held in 2002. The tournament was classified as a WTA 250 tournament on the 2021 WTA Tour and as an ATP Tour 500 series on the 2021 ATP Tour. The tournament took place at the Am Rothenbaum in Hamburg, Germany between 6 and 18 July 2021.
The 2021 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 47th edition of the event, and part of the ATP Tour 500 Series of the 2021 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 25 until 31 October 2021. Second-seeded Alexander Zverev won the singles title.
The 2022 Sydney Tennis Classic was a tennis tournament on the 2022 ATP Tour and 2022 WTA Tour. It was a combined ATP Tour 250 and WTA 500 tournament played on outdoor hard courts in Sydney, New South Wales, Australia. This was the 128th edition of the tournament. The tournament took place at the NSW Tennis Centre from 10 to 15 January 2022.
The 2022 Mexican Open was a professional tennis tournament played on outdoor hard courts. It was the 29th edition of the men's Mexican Open, and part of the 2022 ATP Tour. The tournament took place in Acapulco, Mexico between 21 and 26 February 2022, at the new venue Arena GNP Seguros.
The 2022 BMW Open was a men's tennis tournament played on outdoor clay courts. It was the 106th edition of the event and part of the ATP Tour 250 series of the 2022 ATP Tour. It took place at the MTTC Iphitos complex in Munich, Germany, from 25 April until 1 May 2022.
The 2022 Halle Open was a tennis tournament played on outdoor grass courts. It was the 29th edition of the Halle Open and part of the ATP Tour 500 series of the 2022 ATP Tour. It took place at the OWL Arena in Halle, Germany, between 13 and 19 June 2022.
The 2022 Rakuten Japan Open Tennis Championships was a men's tennis tournament played on outdoor hard courts. It was the 47th edition of the Japan Open, and part of the ATP Tour 500 series of the 2022 ATP Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from 3–9 October 2022. It was the first event since 2019, with the 2020 and 2021 events cancelled due to the COVID-19 pandemic. Third-seeded Taylor Fritz won the singles title.
The 2023 BOSS Open was a men's tennis tournament played on outdoor grass courts. It was the 45th edition of the Stuttgart Open, and part of the ATP Tour 250 series of the 2023 ATP Tour. It was held at the Tennis Club Weissenhof in Stuttgart, Germany, from 12 June until 18 June 2023.
Alexander Zverev 
Raven Klaasen / 
Ben McLachlan 
