ABAlexander Blockx
★ World No. 32 · ATP

Alexander Blockx

Belgium · Right-handed
Age
21
Highest rank
No. 32
Turned pro
2022

Alexander Blockx is a Belgian professional tennis player who broke through to the top of the game with a run to the Madrid Open 2026 semi-finals as a qualifier — winning five matches in a row, including a quarter-final victory over defending champion Casper Ruud and a first career win over a top-10 opponent. Born in Antwerp on 8 April 2005, Blockx had spent years on the Challenger circuit and reached the Next Gen ATP Finals before that Madrid breakthrough lifted him to a career-high ranking and into the top 40 for the first time.

Read more in our feature The Qualifier and the Wildcard, on Alexander Blockx’s route into the main draw.

The Profile

Player Profile

Full nameAlexander Blockx
Date of birth8 April 2005
NationalityBelgian (born in Antwerp)
Height193 cm / 6 ft 4 in
PlaysRight-handed
Turned pro2022
Highest rankingWorld No. 32
Grand Slam titlesNone
2026 Season

Current Ranking & Recent Form

US Open 2026Second round: beat Tomas Barrios Vera 6-3, 6-4, 6-2, meets Marco Trungelliti next
Madrid Open (Masters 1000) 2026Semi-finalAs a qualifier; beat Auger-Aliassime, Cerúndolo and defending champion Ruud
Next Gen ATP Finals 2025Runner-upLost the final to Learner Tien
Analysis

Playing Style & Strengths

At 6 ft 4 in, Blockx is a physically imposing player whose game is built around his size and athletic foundation. He is a right-hander who uses his serve as a platform to build points, with heavy groundstrokes from both wings. What became evident during his Madrid run was his ability to maintain a high level across multiple rounds, beating a different quality of opponent each time and adjusting his approach accordingly — a tactical intelligence beyond what his tour experience would suggest.

His clay game is newer than his hard-court game, but his physical attributes translate naturally to the slower surface, and Madrid demonstrated that the clay game was there once his confidence on the surface arrived. He had said before that run that he never had much confidence on clay; his results since have changed that assessment.

Betting

Blockx Betting Tips & Predictions

Blockx is a credible value pick in outright markets at tour level, particularly now that Madrid confirmed he can beat top-10 players across multiple rounds. His physical, baseline-heavy game makes him difficult to dismiss on slower surfaces, and his hard-court experience is his deepest. He is best backed at longer prices in Masters and ATP 500 events rather than as a short-priced favourite. Follow our tennis betting tips for the latest Blockx predictions.

View Blockx’s latest odds at Bet365

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18+ · Please gamble responsibly · Odds approximate at time of writing · BeGambleAware.org

FAQ

Alexander Blockx FAQs

How old is Alexander Blockx?
Alexander Blockx was born on 8 April 2005, making him 21 years old.
What is Alexander Blockx's ATP ranking?
Blockx reached a career-high of world No. 36 in 2026 after his Madrid Open semi-final run. Check our live ATP rankings page for his current position.
What nationality is Alexander Blockx?
Blockx is Belgian, born in Antwerp, and represents Belgium on tour.
Has Alexander Blockx won an ATP title?
Not yet. He has won four ATP Challenger titles and reached the Next Gen ATP Finals final in 2025. His Madrid semi-final run in 2026 is his best result at tour level and makes him a leading contender for a maiden ATP title.
What did Alexander Blockx achieve at the Madrid Open 2026?
Blockx entered as a qualifier and reached the semi-finals, winning five matches in a row. He beat Félix Auger-Aliassime for his first top-10 win, then Francisco Cerúndolo, and defending champion Casper Ruud 6-4, 6-4 in the quarter-finals, before losing to Alexander Zverev in the last four.