[1] Bonzi won the 2014 French Open boys' doubles title with fellow countryman Quentin Halys after defeating Lucas Miedler and Akira Santillan in the final in straight sets.

[citation needed] He reached the quarterfinals of the 2019 French Open in mixed doubles as a wildcard partnering compatriot Amandine Hesse, where they lost to eventual champions Ivan Dodig and Latisha Chan.

[citation needed] He made his first final in doubles as a wildcard partnering compatriot Antoine Hoang at the 2019 Open Sud de France, where they lost to top seeds Édouard Roger-Vasselin and Ivan Dodig in straight sets.

[6] In doubles as a wildcard he reached the third round of a Grand Slam for the first time in his career partnering Antoine Hoang where they were defeated by eight seeded German duo and eventual champions from Germany, Kevin Krawietz and Andreas Mies.

[7] He made his top 100 debut after winning the Segovia Challenger over Tim van Rijthoven, jumping 16 spots at a new career high of No.

He then won two more back-to-back Challengers in France in Cassis and Rennes, his fifth and sixth of 2021, making it three titles on home soil in three weeks with just three combined sets lost.

He joined Facundo Bagnis (2016), Juan Ignacio Chela (2001) and Younes El Aynaoui (1998) as the only players to lift six singles trophies in one season in ATP Challenger history.

[1] On his debut at the 2022 Australian Open, he won his first match at this Grand Slam tournament, defeating Peter Gojowczyk.

[16] He reached his second career semifinal on the ATP Tour without dropping a set in his three previous matches, defeating Daniel Altmaier in the quarterfinals.

[22] Bonzi made his first final in Pune, beating Tseng Chun-hsin, Emil Ruusuvuori, Filip Krajinović and Botic van de Zandschulp on his way there.

At the same tournament he reached the quarterfinals in doubles with partner Arthur Rinderknech also for the first time at a Major, where they lost to eventual runners-up Hugo Nys and Jan Zieliński.

[1] Bonzi received a wildcard for the US Open main draw where he defeated fellow countryman Quentin Halys to reach the second round for the second consecutive year.

[1] Three months later, in July, Bonzi won his first Challenger title in two years in Winnipeg, defeating Sho Shimabukuro in the final.