In the 2021 French Open – Boys' doubles, Flavio Cobolli and Dominic Stricker were the defending champions, but both players were no longer eligible to participate in junior events.
Jonáš Forejtek and Jiří Lehečka were the defending champions, but were no longer eligible to participate in junior tournaments.
Jonáš Forejtek was the defending champion, having won the previous edition in 2019, but was no longer eligible to participate in junior events.
Eliot Spizzirri and Tyler Zink were the defending champions, having won the previous edition in 2019, however both players were no longer eligible to participate in junior events. Spizzirri and Zink received a wildcard in the men's doubles event, where they lost in the first round.
Bruno Kuzuhara and Coleman Wong defeated Alex Michelsen and Adolfo Daniel Vallejo in the final, 6–3, 7–6(7–3) to win the boys' doubles title at the 2022 Australian Open. Wong became the first Hongkonger win an Australian Open title, and the first Hongkonger to win two titles at majors, having previously won the junior doubles at the 2021 US Open.
Bruno Kuzuhara defeated Jakub Menšík in the final, 7–6(7–4), 6–7(6–8), 7–5 to win the boys' singles title at the 2022 Australian Open.
Gabriel Debru won the title, defeating Gilles-Arnaud Bailly in the final, 7–6(7–5), 6–3.
Edas Butvilas and Mili Poljičak won the title, defeating Gonzalo Bueno and Ignacio Buse in the final, 6–4, 6–0.
Samir Banerjee was the defending champion, but was no longer eligible to participate in junior events.
Sebastian Gorzny and Alex Michelsen defeated Gabriel Debru and Paul Inchauspé in the final, 7–6(7–5), 6–3 to win the boys' doubles tennis title at the 2022 Wimbledon Championships.
Daniel Rincón was the reigning champion, but is no longer eligible to participate in junior events.
Ozan Baris, previously known as Ozan Colak, is an American tennis player.
Bruno Kuzuhara and Coleman Wong were the defending champions, but both players were no longer eligible to participate in junior events.
Yaroslav Demin and Rodrigo Pacheco Méndez won the boys' doubles title at the 2023 French Open, defeating Lorenzo Sciahbasi and Gabriele Vulpitta in the final, 6–2, 6–3.
Max Dahlin and Oliver Ojakäär won the boys' singles title at the 2023 US Open, defeating Federico Bondioli and Joel Schwärzler in the final, 3–6, 6–3, [11–9].
The 2023 Fairfield Challenger was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Fairfield, California, United States between October 9 and October 15, 2023.
Michael Mmoh was the defending champion but chose not to defend his title.
The 2024 Cranbrook Tennis Classic was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Bloomfield Hills, Michigan, United States between July 1 and July 7, 2024.
Steve Johnson was the defending champion but chose not to defend his title after retiring from professional tennis earlier in the 2024 season.
Tristan Schoolkate and Adam Walton were the defending champions but only Schoolkate chose to defend his title, partnering Gijs Brouwer. They withdrew before their semifinal match against Ozan Baris and Nishesh Basavareddy.
Ozan Baris 
Dylan Dietrich 
Juan Carlos Prado Ángelo 
