Alexander Blockx
Belgian tennis player (born 2005)
From Wikipedia, the free encyclopedia
Alexander Blockx (born 8 April 2005) is a Belgian professional tennis player. He has a career-high ATP singles ranking of world No. 69 achieved on 20 April 2026, and a best doubles ranking of No. 467, reached on 10 November 2025.[2] He is the current No. 1 singles player from Belgium.[3]
Belgium| Country (sports) | Belgium |
|---|---|
| Residence | Antwerp, Belgium |
| Born | 8 April 2005 Antwerp, Belgium |
| Height | 1.93 m (6 ft 4 in) |
| Turned pro | 2022 |
| Plays | Right-handed (two-handed backhand) |
| Coach | Ruben Bemelmans (Apr 2026–), Philippe Cassiers (–Apr 2026)[1] |
| Prize money | US $1,226,031 |
| Singles | |
| Career record | 15–13 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 69 (20 April 2026) |
| Current ranking | No. 69 (20 April 2026) |
| Grand Slam singles results | |
| Australian Open | 1R (2026) |
| French Open | Q1 (2025) |
| Wimbledon | Q3 (2025) |
| US Open | Q2 (2025) |
| Doubles | |
| Career record | 1–3 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Highest ranking | No. 467 (10 November 2025) |
| Current ranking | No. 880 (20 April 2026) |
| Team competitions | |
| Davis Cup | 0–1 |
| Last updated on: 30 April 2026. | |
Blockx won the boys' singles title at the 2023 Australian Open.[4] He represents Belgium at the Davis Cup.
Early life
Junior tennis
Blockx had notable results on the ITF junior circuit, maintaining a 108–48 singles win-loss record.[citation needed] In 2022, he reached the third round and then quarterfinals of major junior events of that season, at Wimbledon and the US Open.[7]
The following year, Blockx reached the final at the 2023 Australian Open in both the boys' singles[8][9] and doubles categories. Partnering with Brazilian João Fonseca, he was the runner-up in doubles, defeated by Learner Tien and Cooper Williams.[10] Blockx gained revenge over Tien by winning the boys' singles final in three sets. Although Gilles-Arnaud Bailly reached two major junior finals in 2022, the last Belgian boy to lift a title at this level, prior to Blockx, was Kimmer Coppejans at the 2012 French Open.[11]
As a result, he reached an ITF junior combined ranking of world No. 1 on 1 May 2023.[12]
Professional career
2022: First ATP Tour matches
Blockx made his ATP Tour qualifying debut at his national tournament, the 2022 European Open in his hometown, Antwerp, where he was given a wildcard. He lost to Swiss Dominic Stricker in straight sets.[13] He was also given a wildcard into the main draw of the doubles, playing alongside Ruben Bemelmans in what proved to be Bemelmans' last professional match.[14]
2023: More ATP matches, top 500 debut
In March 2023, Blockx made his Masters 1000 qualifications debut after receiving a wildcard for the 2023 Miami Open, where he lost to Yosuke Watanuki.[15][16]
Blockx received a wildcard for the qualifying competition at the Antwerp Open and qualified into the main draw on his ATP singles debut.[17] In his very first ATP Tour singles main draw match ever in his hometown, he lost to fifth seed Yannick Hanfmann in two close sets.[18] Just a week after his first appearance on the ATP circuit, he won his first ITF title in Glasgow. One week later he won his second title in Sunderland.[19] Partly due to his first qualification for an ATP tournament and winning two ITF titles, he entered the top 500 for the first time on 6 November 2023.[20]
2024: Maiden Challenger title, top 250
Blockx received a wildcard for the qualifying competition at the 2024 Australian Open. He also received a qualifying wildcard for the 2024 Miami Open but lost to Pedro Martinez in the first round. He reached a new career-high ranking of No. 294 on 18 March 2024.[20] In November, Blockx won his maiden Challenger title in Kobe, Japan, defeating Jurij Rodionov in the final. He became the third-youngest Belgian champion in Challenger history (after Libor Pimek and Olivier Rochus). En route to the title, he defeated for the first time a top-100 player, Taro Daniel. As a result, he rose to No. 205 on 18 November 2024, which gave him direct entry to the Grand Slam qualifying rounds.[21]
2025: First ATP win, NextGen finalist, top 125
In January, Blockx won his second Challenger title in Oeiras, Portugal, defeating Liam Draxl in the final. He became the youngest Belgian to earn multiple trophies at that level. As a result, he entered the top 150 in the singles rankings on 27 January 2025.[22][23] Blockx made his Masters main draw debut at the 2025 Miami Open as a qualifier but lost to Corentin Moutet.[24]
In July, Blockx reached his third Challenger final at the Winnipeg Challenger, losing to Liam Draxl in the final.[25][26] Blockx entered his second Masters 1000 main draw as a qualifier at the National Bank Open in Toronto.[27] Ranked at a career high of world No. 119, achieved on 4 August 2025, Blockx also qualified for the main draw at the Cincinnati Open, where he recorded his first ATP Tour win, as well as his first Masters 1000 win, by defeating Marcos Giron.[28] The result solidified Blockx's fifth position in the NextGen Live Race to Jeddah.[29] Blockx won his second Challenger of the 2025 season at the 2025 Slovak Open, and moved to fourth in the NextGen race.[30][31] At the 2025 Moselle Open, Blockx received an entry through the Next Gen Accelerator programme and recorded his second tour-level win, defeating qualifier Francesco Passaro. As a result he moved up to world No. 101 in the singles rankings on 10 November 2025.[32][33]
Blockx reached the 2025 Next Gen ATP Finals championship match, but lost to previous year finalist Learner Tien.[34]
2026: Major debut, Masters semifinal, top 50
In January, Blockx won the title at the Canberra Challenger 125. He entered the top 100 as a result[35] Later in the month, Blockx made his major debut at the Australian Open as a lucky loser, following the withdrawal of Arthur Cazaux. He lost in the first round to Jaime Faria in four sets.[36]
In February, Blockx reached his second Challenger final of the season in Lille, losing to Luca Van Assche in the final.[37][38] In April, he won his first ATP Tour matches on clay with a run to the third-round at the 2026 Monte-Carlo Masters.[citation needed]
At the 2026 Mutua Madrid Open Blockx defeated third seed Felix Auger-Aliassime and Francisco Cerúndolo, as well as defending champion Casper Ruud in straight sets in the quarterfinals to reach the semifinals of a Masters 1000 for the first time in his career. Blockx also became only the second man born in 2005 or later, after Jakub Menšík, to reach the semifinals at a Masters event. As a result he reached the top 50 in the ATP singles rankings.[39]
Personal life
Performance timeline
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
Singles
Current through the 2026 Monte-Carlo Masters.
| Tournament | 2023 | 2024 | 2025 | 2026 | SR | W–L | Win % |
|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | |||||||
| Australian Open | A | Q1 | Q1 | 1R | 0 / 1 | 0–1 | 0% |
| French Open | A | A | Q1 | 0 / 0 | 0–0 | – | |
| Wimbledon | A | A | Q3 | 0 / 0 | 0–0 | – | |
| US Open | A | A | Q2 | 0 / 0 | 0–0 | – | |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–1 | 0 / 1 | 0–1 | 0% |
| Masters tournaments | |||||||
| Indian Wells | A | A | A | Q1 | 0 / 0 | 0–0 | – |
| Miami Open | Q1 | Q1 | 1R | Q2 | 0 / 1 | 0–1 | 0% |
| Monte-Carlo Masters | A | A | A | 3R | 0 / 1 | 2–1 | 67% |
| Madrid Open | A | A | A | 0 / 0 | 0–0 | – | |
| Italian Open | A | A | A | 0 / 0 | 0–0 | – | |
| Canadian Open | A | A | 1R | 0 / 1 | 0–1 | 0% | |
| Cincinnati Masters | A | A | 2R | 0 / 1 | 1–1 | 50% | |
| Shanghai Masters | A | A | A | 0 / 0 | 0–0 | – | |
| Paris Masters | A | A | A | 0 / 0 | 0–0 | – | |
| Win–loss | 0–0 | 0–0 | 1–3 | 2–1 | 0 / 4 | 3–4 | 43% |
ATP Next Generation finals
Singles: 1 (runner-up)
| Result | Date | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Loss | Dec 2025 | Next Generation ATP Finals, Saudi Arabia | Hard (i) |  Learner Tien |
3–4(4–7), 2–4, 1–4 |
ATP Challenger Tour finals
Singles: 6 (4 titles, 2 runner-ups)
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | Nov 2024 | Hyōgo Noah Challenger, Japan | Challenger | Hard (i) |  Jurij Rodionov |
6–3, 6–1 |
| Win | 2–0 | Jan 2025 | Oeiras Indoors III, Portugal | Challenger | Hard (i) |  Liam Draxl |
7–5, 6–1 |
| Loss | 2–1 | Jul 2025 | Winnipeg National Bank Challenger, Canada | Challenger | Hard | Liam Draxl |
6–1, 3–6, 4–6 |
| Win | 3–1 | Oct 2025 | Slovak Open, Slovakia | Challenger | Hard (i) |  Titouan Droguet |
6–4, 6–3 |
| Win | 4–1 | Jan 2026 | Workday Canberra International, Australia | Challenger | Hard |  Rafael Jódar |
6–4, 6–4 |
| Loss | 4–2 | Feb 2026 | Play In Challenger, France | Challenger | Hard (i) | Luca Van Assche |
2–6, 4–6 |
Doubles: 1 (runner-up)
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Feb 2025 | Open Pau–Pyrénées, France | Challenger | Hard (i) | Raphaël Collignon |
 Jakob Schnaitter Mark Wallner |
4–6, 7–6(7–5), [8–10] |
ITF World Tennis Tour finals
Singles: 4 (2 titles, 2 runner-ups)
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Mar 2023 | M15 Sharm El Sheikh, Egypt | WTT | Hard |  Saba Purtseladze |
3–6, 4–6 |
| Loss | 0–2 | Sep 2023 | M25 Falun, Sweden | WTT | Hard (i) | Tibo Colson |
5–7, 6–4, 3–6 |
| Win | 1–2 | Oct 2023 | M25 Glasgow, UK | WTT | Hard (i) |  Anton Matusevich |
5–7, 6–4, 6–2 |
| Win | 2–2 | Nov 2023 | M25 Sunderland, UK | WTT | Hard (i) | Tibo Colson |
4–6, 6–2, 6–4 |
Doubles: 1 (runner-up)
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Jun 2023 | M25 Arlon, Belgium | WTT | Clay | Alessio Basile |
 Gabriel Roveri Sidney Vladyslav Orlov |
6–0, 5–7, [5–10] |
Junior Grand Slam finals
Singles: 1 (title)
| Result | Year | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Win | 2023 | Australian Open | Hard | Learner Tien |
6–1, 2–6, 7–6(11–9) |
Doubles: 1 (runner-up)
| Result | Year | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Loss | 2023 | Australian Open | Hard | João Fonseca |
Learner Tien Cooper Williams |
4–6, 4–6 |
Wins over top-10 players
- Blockx has a 1–2 (33.33%) match record against players who were, at the time the match was played, ranked in the top 10.[43]
| Season | 2026 | Total |
|---|---|---|
| Wins | 1 | 1 |
| # | Player | Rk | Event | Surface | Rd | Score | Rk | Ref |
|---|---|---|---|---|---|---|---|---|
| 2026 | ||||||||
| 1. | Félix Auger-Aliassime |
5 | Madrid Open, Spain | Clay | 3R | 7–6(7–3), 6–3 | 69 | |
- Key: (Rk) first use, opponent rank; (Rd) round; (Rk) 2nd use, player rank; (Ref) reference; (F) final; (SF) semifinal; (QF) quarterfinal; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage
- *As of 28 April 2026[update]
