| Challenger Pune | 02/25 11:00 | 29 | [173] Valentin Vacherot v Adam Walton [153] | 3-6,7-6,7-6 | |
| Challenger Pune | 02/24 11:05 | 28 | [194] Dane Sweeny v Valentin Vacherot [173] | 6-4,2-6,4-6 | |
| Challenger Pune | 02/23 07:30 | 27 | [173] Valentin Vacherot v Enzo Couacaud [238] | 7-6,6-4 | |
| Challenger Pune | 02/21 07:35 | 26 | [173] Valentin Vacherot v Tristan Schoolkate [243] | 6-1,6-2 | |
| Challenger Pune | 02/20 07:25 | 25 | Valentin Vacherot v Vasek Pospisil | 6-3,7-5 | |
| ATP Delray Beach | 02/10 20:05 | 14 | [138] Gabriel Diallo v Valentin Vacherot [173] | 6-4,6-4 | |
| Davis Cup | 02/04 20:55 | 4 | [479] Adolfo Daniel Vallejo v Valentin Vacherot [171] | 7-6,4-6,4-6 | |
| Davis Cup | 02/03 20:35 | 2 | Martin A Vergara Del Puerto v Valentin Vacherot | 2-6,1-6 | |
| Challenger Nonthaburi | 01/13 05:00 | 29 | [219] Valentin Vacherot v Manuel Guinard [323] | 7-5,7-6 | |
| Challenger Nonthaburi | 01/12 05:00 | 28 | Valentin Vacherot v Arthur Fery | Walkover | |
| Challenger Nonthaburi | 01/11 05:30 | 27 | [196] Dennis Novak v Valentin Vacherot [219] | 6-7,4-6 | |
| Challenger Nonthaburi | 01/10 04:55 | 26 | [219] Valentin Vacherot v Tennys Sandgren [259] | 6-7,7-6,6-4 | |
| Challenger Nonthaburi | 01/09 03:00 | 25 | [219] Valentin Vacherot v Ramkumar Ramanathan [475] | 6-4,6-3 | |
| Challenger Nonthaburi | 01/06 06:00 | 29 | [329] Lucas Pouille v Valentin Vacherot [280] | Retired | |
| Challenger Nonthaburi | 01/05 05:25 | 28 | [280] Valentin Vacherot v Yu Hsiou Hsu [208] | 6-3,7-6 | |
| Challenger Nonthaburi | 01/04 05:00 | 27 | [280] Valentin Vacherot v Francesco Passaro [200] | 4-6,7-5,7-6 | |
| Challenger Nonthaburi | 01/03 08:00 | 26 | [239] Laurent Lokoli v Valentin Vacherot [280] | 4-6,4-6 | |
| Challenger Nonthaburi | 01/02 08:35 | 25 | [378] Rio Noguchi v Valentin Vacherot [280] | 6-7,6-7 | |
| Challenger Nonthaburi | 01/01 03:00 | 19 | [280] Valentin Vacherot v Manuel Guinard [323] | 6-2,6-3 | |
| Challenger Nonthaburi | 12/31 03:00 | 14 | Valentin Vacherot v Thanapet Chanta | 6-2,6-3 | |
| Challenger Temuco | 12/02 16:30 | 28 | [123] Aleksandar Kovacevic v Valentin Vacherot [299] | 6-7,6-0,6-3 | |
| Challenger Temuco | 12/02 13:00 | 27 | Valentin Vacherot v Alafia Ayeni | 6-2,2-6,6-4 | |
| Challenger Temuco | 11/30 15:00 | 26 | [244] Gustavo Heide v Valentin Vacherot [299] | 6-1,4-6,2-6 | |
| Challenger Temuco | 11/28 18:00 | 25 | [354] Mariano Kestelboim v Valentin Vacherot [299] | 5-7,2-6 | |
| Challenger Brasilia | 11/23 16:35 | 26 | [312] Valentin Vacherot v Bernard Tomic [295] | 5-7,7-5,6-7 | |
| Challenger Brasilia | 11/21 15:50 | 25 | [312] Valentin Vacherot v Blaise Bicknell [423] | 6-1,6-1 | |
| Challenger Montevideo | 11/13 15:00 | 19 | [317] Valentin Vacherot v Pedro Sakamoto [411] | 3-6,0-6 | |
| Challenger Montevideo | 11/12 14:00 | 14 | Valentin Vacherot v Valentino Aliano | 6-0,6-0 | |
| Challenger Lima | 11/07 19:05 | 25 | [308] Valentin Vacherot v Joao Lucas Reis da Silva [317] | 3-6,0-6 | |
| Challenger Lima | 11/06 18:35 | 19 | [308] Valentin Vacherot v Orlando Luz [354] | 6-2,6-7,6-3 |
Valentin Vacherot (born 16 November 1998) is a French-Monégasque tennis player. He has a career high ATP singles ranking of world No. 116 achieved on 20 May 2024. He also has a career high doubles ranking of No. 476 achieved on 20 February 2023.
Vacherot played college tennis at Texas A&M University.
Vacherot represents Monaco at the Davis Cup, where he has a win–loss record of 4–1.
In 2022, Vacherot won his first Challenger singles tournament at the Nonthaburi Challenger, Thailand, beating Lý Hoàng Nam in the finals.
He received a wildcard for the 2023 Monte-Carlo Masters main draw, losing in the first round to Luca Nardi.
He 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.
He 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 for the main draw.