Brad Drewett was an Australian tennis player and ATP official. He was the 1975 and 1977 Australian Open junior champion and the youngest player at age 17 to win the title since Ken Rosewall and John Newcombe. He was also the third-youngest Australian Open quarterfinalist in his first Grand Slam appearance, at 17 years 5 months in 1975, behind Boris Becker, 17 years 4 days in 1984 and Goran Ivanišević, 17 years 4 months in 1989.
Eric Taino is a retired ATP Tour American tennis player, who later represented the Philippines in international competition.
Marcel Felder is a Uruguayan professional tennis player. His highest ranking in singles was No. 227 on 28 December 2009. His highest ranking in doubles was 82 on 11 June 2012. Felder won a gold medal in singles in men's tennis at the 2013 Maccabiah Games in Israel.
Víctor Estrella Burgos is a retired Dominican professional tennis player. In 2014, Estrella became the first Dominican to reach the top 100 in the ATP rankings. He also became the first Dominican player to reach the semifinals in an ATP 250 tournament in Bogota. In 2015, he also became the first tennis player from his country to participate in all four Grand Slams, playing in the Australian Open. In February 2015, he won his first career ATP title at the Ecuador Open, becoming the oldest first-time ATP tour winner in the Open Era. He successfully defended his title with a 100% winning record at the event in 2016 and 2017, but lost in the second round in 2018.
Fritz Wolmarans is a former professional South African tennis player.
Dimitar Kuzmanov is a Bulgarian professional tennis player. He competes mostly on the ATP Challenger Tour. His highest singles ranking is No. 159 achieved on 29 August 2022, whilst his best doubles ranking is No. 438 achieved on 1 April 2019.
Mate Delić is a former Croatian tennis player and a coach. He primarily played on the ITF Futures Tour and ATP Challenger Tour. Delic has reached a career high singles ranking of world No. 150, achieved on 5 January 2015, as well as a career high doubles ranking of world No. 348, achieved on 18 October, 2013. Delic has reached 18 career singles finals, posting a tally of 5 wins and 13 losses, which includes a 0–2 record in ATP Challenger Tour finals. Additionally, he has reached 13 career singles finals with a record of 7 wins and 6 losses all coming on the ITF Futures Tour.
Sriram Balaji is an Indian professional tennis player. Balaji has a career high ATP singles ranking of world No. 287, achieved on 19 June 2017 and a doubles ranking of world No. 88 achieved on 3 April 2023.
Vladyslav Serhiyovych Manafov is a Ukrainian tennis player.
Jorge Brian Panta Herreros is a Peruvian tennis player.
Patrik Niklas-Salminen is a Finnish tennis player.
Chung Hong is a South Korean tennis player.
Hsu Yu-hsiou is a Taiwanese tennis player.
Zsombor Piros is a Hungarian tennis player.
Alexander Donski is a Bulgarian tennis player.
Pedro Martínez Portero is a Spanish professional tennis player. Martínez has a career high ATP singles ranking of World No. 40 achieved on 9 May 2022. He also has a career high ATP doubles ranking of World No. 51 achieved on 16 May 2022.
Jonáš Forejtek is a professional tennis player from the Czech Republic. Forejtek has a career high ATP singles ranking of World No. 217, achieved on 1 August 2022. He also has a career high ATP doubles ranking of World No. 302, achieved on 28 February 2022. Forejtek has reached five career singles finals, with a record of 2 wins and 3 losses all on the ITF Futures Tour. Additionally, he has reached five career doubles finals, with a record of 4 wins and 1 loss which includes a 2–0 record in ATP Challenger Tour finals.
The 2021 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2021 tennis season. The 2021 ATP Tour calendar comprised the Grand Slam tournaments, the ATP Finals, the ATP Tour Masters 1000, the ATP Cup, the ATP Tour 500 series and the ATP Tour 250 series. Also included in the 2021 calendar were the Davis Cup, the Summer Olympics in Tokyo, Next Gen ATP Finals, Laver Cup, none of which distributed ranking points.
Peter Bertran is a Dominican Republic tennis player.
Coleman Wong Chak-lam is a tennis player from Hong Kong. He is educated in Diocesan Boys' School. After winning the 2021 US Open Boys' Doubles event, he became Hong Kong's second ever Grand Slam winner in any discipline, following Patricia Hy's 1983 Wimbledon title in Girls' Doubles. He won his second Grand Slam title at the 2022 Australian Open Boys' Doubles event, becoming the first back-to-back Grand Slam champion in boy's double since Hsu Yu-hsiou in 2017 at Wimbledon and the US Open.
Philippines 
