Valentin Vacherot

In 2022, Vacherot won his maiden Challenger title at the Nonthaburi Challenger, Thailand, beating Lý Hoàng Nam in the final. Vacherot became Monaco’s second Challenger champion and the first since Jean-René Lisnard in 2004.

He received a wildcard for the 2023 Monte-Carlo Masters main draw, making his Masters debut. He lost in the first round to Luca Nardi.

Vacherot also received a wildcard for the 2024 Monte-Carlo Masters, losing to ninth seed Grigor Dimitrov. Ranked No. 136, he qualified for the main draw at the 2024 Țiriac Open but lost his opening match to eventual champion Márton Fucsovics. Vacherot reached the top 120 on 6 May 2024, following a semifinal appearance as a qualifier, at the 2024 Open Aix Provence. He defeated Aleksandar Kovacevic, qualifier Felipe Meligeni Alves and alternate Richard Gasquet before losing to eventual champion and third seed Alejandro Tabilo.

He made his Grand Slam debut at the 2024 French Open after qualifying, becoming the first player from the Monégasque Tennis Federation to qualify for the main draw. He lost in the first round to 32nd seed Alejandro Davidovich Fokina.

Vacherot also received a wildcard for the 2025 Monte-Carlo Masters and recorded his first Masters win over Jan-Lennard Struff in straight sets. He became the first Monégasque player to win a main draw match at the tournament since Jean-René Lisnard in 2009.

In October, ranked No. 204, Vacherot won his maiden title at the 2025 Rolex Shanghai Masters as a qualifier, becoming the lowest ranked player to ever win a Masters 1000 tournament. After qualifying, he recorded his second and third Masters wins by defeating Laslo Djere in straight sets and 14th seed Alexander Bublik in the second round. Vacherot reached his first Masters 1000 fourth round following the retirement of 20th seed Tomáš Macháč. He then upset 27th seed Tallon Griekspoor, despite dropping the first set for a second time, to reach his first Masters quarterfinal and thus became the lowest-ranked quarterfinalist in the event history in Shanghai, and the first player from Monaco to reach an ATP Tour and Masters-level quarterfinal at the same time. Next he defeated tenth seed Holger Rune in the quarterfinals. Vacherot defeated Novak Djokovic in the semifinals, recording the first top 10 (and top 5) win for a Monégasque player in history, and becoming the lowest ranked player to ever reach a Masters 1000 final. In just Vacherot’s 27th tour-level match, he defeated his cousin Arthur Rinderknech to win his first ATP Tour and Masters 1000 title. Going into the Shanghai final, Vacherot and Rinderknech had each won 3 matches after dropping the first set.^[] The cousins also collectively defeated 10 of the 32 seeds (5 each) in the draw.^[]

Vacherot then received a wildcard into the Basel Open, however lost in a three set thriller to World No. 4 Taylor Fritz, in the first round. Vacherot then also received a wildcard into the Paris Masters, where he defeated Jiří Lehečka, again his cousin Arthur Rinderknech and Cameron Norrie, reaching a consecutive Masters quarterfinal. Despite losing to ninth seed Félix Auger-Aliassime in straight sets in the quarterfinals, Vacherot reached a new career-high ranking in the top 30 on 3 November 2025.