João Fonseca Biography: Age, Ranking, Height, Net Worth, Parents, Titles, Academy, Sponsors

João Franca Guimarães Fonseca, is a Brazilian professional tennis player, is celebrated for his explosive forehand and aggressive baseline play, earning him a career-high ATP singles ranking of world No. 48 on July 14, 2025.

Known by his real name, João Fonseca, he is the current No. 1 player from Brazil, captivating fans with his meteoric rise from junior dominance to professional stardom.

His maiden ATP Tour title at the 2025 Argentina Open and victory at the 2024 Next Gen ATP Finals have marked him as one of the brightest young talents in tennis, drawing comparisons to Brazilian legend Gustavo Kuerten.

Profile

• Full Name: João Franca Guimarães Fonseca
• Stage Name: João Fonseca
• Born: 21 August, 2006
• Age: 18 years old
• Birthplace: Ipanema, Rio de Janeiro, Brazil
• Nationality: Brazilian
• Occupation: Professional Tennis Player
• Height: 1.88 m
• Parents: Christiano Fonseca, Roberta Fonseca
• Siblings: Unknown
• Spouse: None
• Children: None
• Relationship: Single
• Net Worth: $1.5 million

Early Life and Education

João Franca Guimarães Fonseca was born on August 21, 2006, in Ipanema, Rio de Janeiro, Brazil. Raised by his parents, Christiano Fonseca, CEO and co-founder of IP Capital Partners, and Roberta Fonseca, a former athlete, he grew up in a sports-oriented family with no publicly known siblings.

Fonseca began playing tennis at age four at the Rio de Janeiro Country Club, located near his home. Details about his formal education, including schools attended or degrees earned, are not publicly available due to his early focus on tennis. His ethnicity is Brazilian, and his religion is not publicly known.

Career

João Fonseca began his tennis journey at the Rio de Janeiro Country Club, showing early promise as a junior. He rose to prominence by winning the 2023 US Open boys’ singles title, becoming the first Brazilian to finish a season as world No. 1 in the ITF junior rankings.

His professional debut came at the 2023 Rio Open via a wildcard, and in 2024, at age 17, he secured his first ATP Tour win at the same event, defeating No. 36 Arthur Fils 6-0, 6-4. His breakthrough continued with a quarterfinal appearance at the 2024 Rio Open, drawing passionate crowds and earning global attention.

Fonseca’s 2025 season was a defining moment, starting with a second Challenger title at the 2025 Canberra Tennis International, followed by his Grand Slam debut at the Australian Open, where he stunned No. 9 Andrey Rublev in straight sets for his first top-10 win. He reached the top 100 on January 27, 2025, at No. 99, becoming the youngest Brazilian to achieve this milestone.

His historic run at the 2025 Argentina Open saw him defeat Francisco Cerúndolo to claim his first ATP title, making him the youngest Brazilian and 10th-youngest champion in ATP Tour history. His victory at the 2024 Next Gen ATP Finals further solidified his status as a rising star.

Currently, João Fonseca continues to compete at the highest levels, reaching the third round at the 2025 Wimbledon Championships, his best major result, and entering the top 50 at No. 48. His performance against high-caliber players like Hubert Hurkacz at the 2025 French Open and his adaptability on grass showcase his versatility.

Coached by Guilherme Teixeira, Fonseca’s powerful serve, 81 mph average forehand, and 3,019 RPM spin rate distinguish him as a formidable player. His growing fanbase and sponsorships, including Rolex, position him as Brazil’s next tennis icon, with aspirations to win Grand Slams and reach world No. 1.

Social Media

Instagram Handle: @joaofonsi_

Personal Life

João Fonseca is currently single with no children, leads a life centered on tennis and his close-knit family.

Net Worth

João Fonseca has an estimated net worth of $1.5 million USD, primarily from ATP Tour prize money totaling $1.5 million as of June 2025 and endorsements with brands like Rolex and Yonex. His 2025 Argentina Open title, 2024 Next Gen ATP Finals win, and consistent performances in ATP events have significantly boosted his earnings.