Alexander Blockx has qualified for the Next Gen ATP Finals presented by PIF for the first time. The 20-year-old will be the first Belgian player to compete at the 20-and-under event.
Born to Ukrainian parents who were both professional athletes, Blockx’s father, Oleg, was a track athlete specialising in hurdle races, while his mother, Natalia, was a swimmer. Despite this diverse sporting background, Blockx has never played any sport besides tennis.
Blockx is under the guidance of Philippe Cassiers, who has coached the rising star since the 6’4” Antwerp native was aged four. A highlight of their partnership came in 2023, when Blockx became the junior No. 1 in singles and doubles.
Blockx started the 2025 season on fire in Portugal, clinching an ATP Challenger Tour title in Oeiras, his second success at this level. He then qualified for the ATP Masters 1000 event in Miami before he enjoyed a run to the final at the Challenger Tour event in Winnipeg.
Blockx recorded his first win at an ATP Masters 1000 event in Cincinnati, where he defeated Marcos Giron. The 20-year-old ended the season with another Challenger Tour crown in Bratislava and a tour-level victory in Metz.
Blockx was outside the Top 200 in the PIF ATP Rankings in January but has made steady progress, rising to a career-high No. 101 in November.
The 2025 Next Gen ATP Finals presented by PIF will take place from 17-21 December. Former champions include Jannik Sinner and Carlos Alcaraz. Jakub Mensik, Learner Tien have also qualified for the 20-and-under event this year.
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