“My dream is to enjoy playing tennis for as long as possible and one day build my own tennis academy and brand.”
Thiago Guillaume is a junior tennis player based in Biel/Bienne, Switzerland, with Swiss, French, and Peruvian nationality. Born in 2016, he is already ranked Swiss No.1 U10 and French No.1 U10, while also gaining experience at a higher level in the U12 category and within the Swiss Tennis development pathway.
Through Tennis Papers, discover an exclusive profile and interview highlighting his tennis journey, playing style, competitive experience, and ambitions.
This profile is based on an exclusive interview conducted by Tennis Papers.
Table of Contents
👦 Thiago Guillaume | Biography, March 2026
| Full Name | Thiago Guillaume |
| Date of birth | February 1, 2016 |
| Nationality | Swiss 🇨🇭 French 🇫🇷 Peruvian 🇵🇪 |
| Residence | Biel/Bienne, Switzerland |
| Age started tennis | 4 |
| Tennis age category | U10 |
| National ranking | #1 (Switzerland) #1 (France) |
| International ranking | |
| Tennis club | Swiss Tennis TPC Biel/Bienne TC Neuchâtel |
| Coaches | |
| Sponsors | Tecnifibre Sabrhero ASICS |
| @tititennis |
🎙️ Thiago Guillaume | Interview, March 2026
Hello, introduce yourself please.
My name is Thiago Guillaume. I am 10 years old and I was born on February 1, 2016. I have Swiss, French, and Peruvian nationality, and I live in Biel/Bienne, Switzerland.
What languages do you speak?
I speak French, English, and Spanish, and I am also learning German.
At what age did you start playing tennis?
I started playing tennis when I was 4 years old.
Are there other tennis players in your family?
Yes, tennis is an important sport in my family and they support me a lot in my development.
In which club do you train?
I train with Swiss Tennis and at several clubs: TPC Biel/Bienne, TC Neuchâtel, and in the Seeland region.
Who are your coaches?
I train with coaches from Swiss Tennis and my clubs, who help me improve my game and develop as a player.
What is your weekly training routine?
I train around 10 to 14 hours per week, including tennis practice, physical training, and matches.
What is your greatest strength as a player, and what do you need to improve?
My biggest strength is my fighting spirit and my consistency during matches. I still need to improve my serve and my physical strength.
What is your age category and your national ranking?
I am currently Swiss No.1 in the U10 category and French No.1 in the U10 category. I am also No.12 in Switzerland in the U12 category. My adult ranking is R4 in Switzerland and 15/4 in France.
What have been your greatest successes so far?
My biggest achievements so far are becoming Swiss No.1 in the U10 category, competing in many national tournaments, and being selected for the Swiss Tennis Supra-Regional U12 squad.
In which countries have you played tournaments?
So far I have played tournaments mainly in Switzerland and France, and I will soon start competing in Tennis Europe junior tournaments.
Do you have any sponsors?
Yes, I am supported by Tecnifibre, Sabrhero, and ASICS for tennis shoes.
What is your goal for 2026?
My goal for 2026 is to continue improving my game and gain more experience in international tournaments.
What is your tennis dream?
My dream is to enjoy playing tennis for as long as possible and one day build my own tennis academy and brand.
Who are your favorite tennis players?
My favorite tennis player is Carlos Alcaraz.
What do you enjoy outside of tennis?
Outside of tennis, I enjoy doing judo and traveling with my family.
Who would you like to dedicate this interview to?
I would like to dedicate this interview to my family, my coaches, and everyone who supports me in my tennis journey.
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