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Marco Kroes Headshot

Marco Kroes

Marco Kroes joined the Columbia women's tennis program as an assistant coach in September of 2025. 

Kroes joins the women’s staff after helping guide the Columbia Men’s Tennis program to its second consecutive Elite Eight appearance and the 2025 Ivy League Championship as the Columbia Men’s Tennis Assistant Coach.  Kroes worked directly with junior Michael Zheng to help prepare him to win the 2025 NCAA Singles Championship.

Kroes came to Columbia after a successful career as a professional coach on the ATP Tour. Kroes is the first Olympic coach in the world to work for two countries at the 2020 Olympics in Tokyo as he coached both the Netherlands and Belgium.

As a traveling ATP Tour coach, Kroes mentored, among other top players, Stefanos Tsitsipas, Rohan Bopanna and Wesley Koolhof.  Tsitsipas has achieved an ATP Singles career-high ranking of No. 3 in the world, while Bopanna and Koolhof each achieved ATP Doubles career-high rankings of No. 1 in the world.

During his career, Kroes has coached players to sixteen ATP Challenger Tour titles, 15 ATP World Tour Doubles finals and 6 ATP World Tour championships. Under Kroes’ direction, Koolhof captured the doubles title at the Nitto ATP Finals in 2020 and Koolhof and Nikola Mektic were finalists at the 2020 US Open. The duo won the 2020 ATP Finals and finished the year at No. 3 in the doubles race. He has trained players at the sport’s highest levels, including Wimbledon, Roland Garros, the US Open, and the Australian Open.