Gabriel Diallo is quickly becoming a household name in the world of tennis. Known for his towering height, relentless work ethic, and multicultural background, he’s captivating fans with his performances on the ATP Tour. Here’s a deep dive into everything you need to know about Gabriel Diallo, from his personal life and career milestones to his earnings, endorsements, and more.
Gabriel Diallo’s Biography
| Attribute | Details |
| Name | Gabriel Diallo |
| Nickname | – |
| Born | September 24, 2001 |
| Age | 23 years |
| College | University of Kentucky |
| Nationality | Canadian |
| Height | 6’8″ (203 cm) |
| Turned Pro | 2023 |
| Net Worth | $1–2 million |
| Salary | Tournament-based earnings |
| Spouse | Fiona Arrese Mata |
| Relationship Status | In a relationship |
| Instagram Profile | @gabrieldiallo24 |
Gabriel Diallo was born in Montreal, Canada, to a Guinean father and a Ukrainian mother. He stands out not only for his height but also for his humility and multicultural roots. Off the court, he enjoys spending time with family and his girlfriend, Fiona Arrese Mata, who is also a tennis player.
Early Career
Gabriel Diallo started playing tennis at age 10, inspired by his supportive parents and early training in Montreal. He honed his skills at the Aliassime Tennis Academy and later became a standout player at the University of Kentucky, where he earned All-American honors and helped the Wildcats reach their first NCAA Championship match. His strong college career laid the foundation for his rapid rise in the professional ranks.
Professional Career
Diallo turned professional in 2023 and quickly made an impact on the ATP Tour. He won his first Challenger title at Granby in 2022, becoming the youngest Canadian champion on the Challenger circuit since Félix Auger-Aliassime. By 2024, he had reached the third round of the US Open and notched wins against top-ranked players, including a pivotal Davis Cup victory over Lorenzo Musetti.
In 2025, Diallo captured his maiden ATP Tour title at the Libema Open in ‘s-Hertogenbosch, propelling him to a career-high ranking of No. 40. His aggressive playing style and mental toughness have made him a formidable opponent on all surfaces. Diallo’s journey is marked by steady progress, significant wins, and a growing presence in international tennis.
Girlfriend
Gabriel Diallo is not married but is in a relationship with Fiona Arrese Mata, a Spanish tennis player and former University of Kentucky athlete. The couple shares their moments on social media, but as of 2025, they do not have any children.
Gabriel Diallo’s Net Worth Details
As of 2025, Gabriel Diallo’s net worth is estimated to be between $1 and $2 million. His income comes primarily from prize money, sponsorships, and endorsements, reflecting his growing success and marketability on the ATP Tour.
Prize Money
| Year | Prize Money |
| 2024 | $456,392 |
| Career Total | $1,678,261 |
Endorsements
- Lyon Lifts (Main Canadian sponsor)
- Apparel and equipment partnerships (various, not all publicly disclosed)
Career Records
| Opponent | Result | Tournament | Year |
| Lorenzo Musetti | Win | Davis Cup Finals | 2023 |
| Daniel Evans | Win | National Bank Open | 2023 |
| Jaume Munar | Win | US Open | 2024 |
| Tallon Griekspoor | Loss | Mallorca Championships | 2025 |
| Francisco Cerúndolo | Win | Roland Garros | 2025 |
| Zizou Bergs | Win | Libema Open Final | 2025 |
FAQs
1. Who is Gabriel Diallo?
Gabriel Diallo is a Canadian professional tennis player known for his powerful serve and aggressive baseline play. He has rapidly risen through the ATP rankings and is considered one of Canada’s top tennis prospects.
2. When and where was Gabriel Diallo born?
Gabriel Diallo was born on September 24, 2001, in Montreal, Quebec, Canada.
3. What is Gabriel Diallo’s highest ATP singles ranking?
As of July 2025, Gabriel Diallo’s career-high ATP singles ranking is No. 40.
4. What notable titles has Gabriel Diallo won?
Gabriel Diallo won his first ATP Tour title at the Libéma Open in 2025 and has multiple ATP Challenger titles, including the Granby National Bank Championships.
5. What is Gabriel Diallo’s playing style?
Diallo is known for his aggressive baseline game, strong serve, and willingness to take risks on court. He plays right-handed with a two-handed backhand and uses his height to generate power and reach.
6. What is Gabriel Diallo’s background and family heritage?
Gabriel Diallo was born to a Ukrainian mother and a Guinean father. His multicultural background is a source of pride and support in his career.
7. Did Gabriel Diallo play college tennis?
Yes, Diallo played college tennis at the University of Kentucky, where he was a standout player and helped his team reach the NCAA finals.
8. What are some of Gabriel Diallo’s career highlights?
Career highlights include winning the 2025 Libéma Open, reaching the quarterfinals at the Mutua Madrid Open, and representing Canada in the Davis Cup, where he secured a pivotal win over a top-20 opponent.
9. How tall is Gabriel Diallo?
Gabriel Diallo stands at 6 feet 8 inches (2.03 meters), making him one of the tallest players on the ATP Tour.
10. What languages does Gabriel Diallo speak?
Gabriel Diallo is fluent in both French and English.