The Functional Tennis Podcast · Fabio Molle

Why 55% of the Top 100 Use Luxilon with Justin Van Malderen

·39 min·3 clips

Justin Van Malderen reveals 55% of top 100 players use Luxlon strings at the US Open 2025.

This episode features host Fabio Molle interviewing Justin Van Malderen, a third-generation leader of the Luxilon string company. They discuss Luxilon's market position, product development, and trends in professional and recreational tennis. Justin shares that 55% of the top 100 players at the 2025 US Open used Luxilon strings, equating to 110 players. The conversation covers Luxilon's ongoing research into new strings tailored for aggressive players using powerful, thick-beamed rackets. Justin explains that Wilson manages tour sponsorships for many Luxilon-sponsored players, while other pros buy the strings directly because they prefer the performance. He details the development process for a new product, involving machine testing and player feedback, which is challenging to gather mid-season. The episode highlights specific strings like Luxilon Element, described as the market's softest polyester, ideal for juniors or players seeking arm comfort. In contrast, 4G is a stiffer string known for tension maintenance and control, used by players who generate their own power. Justin reveals that Aryna Sabalenka uses a custom hybrid of AluPower 125 and a discontinued string called ACE, which Luxilon still produces exclusively for her. He addresses the cost of Luxilon strings, citing proprietary raw materials, specialized machinery, and rigorous quality assurance as key factors. The discussion touches on the Eco string line made from recycled PET bottles, which has underperformed commercially despite being a high-performance product. Justin notes regional string gauge preferences, with U.S. players favoring thicker strings for durability and Australian players seeking thinner ones. A common mistake recreational players make is believing thicker gauge strings are inherently softer. Justin identifies 4G Rough as Luxilon's best string for spin generation due to its stiffness and snapback. He confirms Novak Djokovic is a paying Luxilon customer. The tone is conversational and educational, blending industry insights with specific technical details. Tennis enthusiasts interested in equipment technology, string selection, and the business behind professional gear would enjoy this episode. Listeners seeking general tennis instruction or match analysis might find it less relevant.

As heard by us

A gear-focused tennis conversation that makes string choice feel concrete.

Justin Van Malderen returns to the Functional Tennis Podcast for a conversation about Luxilon, the modern game, and how a family business keeps its footing against bigger brands.

Read the full review in PlayNext →

Why you'd press play

For the player who wants the why behind every string change.

Read the full recommendation in PlayNext →

Listen to the show on

Apple Podcasts Spotify

Play clips from this episode More from The Functional Tennis Podcast