Belgian tennis player Gauthier Onclin, born on February 26, 2001, has been steadily making his mark on the professional circuit. Unlike many players on tour, Onclin did not attend university, instead choosing to turn professional in 2018 to pursue his tennis career directly after his junior years.
An interesting aspect of Onclin’s development is that he never experienced grass-court tennis during his junior career, as the grass-court season coincided with the COVID-19 pandemic shutdown. This didn’t stop him from adapting quickly to the surface, as demonstrated by his impressive performance in his first-ever grass court season at the 2023 Wimbledon Championships qualifying rounds.
Under the guidance of coach Steve Darcis, Onclin has shown remarkable progress on the professional circuit. His breakthrough year came in 2023, when he made his ATP debut in doubles at the European Open in Antwerp, where he particularly impressed by defeating higher-ranked American Maxime Cressy in the qualifying rounds. That same year, he achieved a career-high ranking of World No. 194 in September, marking his steady rise through the rankings.
The 2024 season brought more milestones for the Belgian player, including his first ATP Challenger final at the Prague Open, where he faced former world No. 35 Jiří Veselý. Based in Liège, Belgium, Onclin continues to build his career with a mix of ATP Challenger and tour-level events. His aggressive playing style and ability to adapt to different surfaces have made him one of Belgium’s promising tennis prospects.
A testament to his growing confidence was his performance in Bordeaux, where he defeated the higher-ranked Elias Ymer, showing his ability to compete with more established players. His journey from being unranked to breaking into the top 200 demonstrates the steady progression of a player who’s making his mark on the professional circuit through determination and hard work rather than following the traditional college tennis route taken by many of his peers.
Gauthier Onclin’s sponsors are Indian Maharadja and Wilson. He has earned less than $1 million in his career.
Gauthier Onclin’s Sponsors
Indian Maharadja
Gauthier Onclin has a clothing sponsorship with the Dutch brand Indian Maharadja
Wilson
He has a racquet sponsorship with Wilson