2021: Maiden single Challenger title, top 250 in singles, top 200 in doubles

In March, he won his first Challenger title at the 2021 Saint Petersburg Challenger II with Sem Verbeek.

He won his third doubles title at the 2021 Almaty Challenger with Vitaliy Sachko. As a result, he hit a career-high in doubles of No. 204 on 14 June 2021. A week later, De Jong won also his first singles Challenger at the 2021 Almaty Challenger II defeating Tomás Barrios Vera which resulted in a career-high of No. 260 on 21 June 2021.

2022: Top 160 in singles, top 150 in doubles, ATP debut

Following a semifinal showing at the Challenger in Traralgon, Australia in January, he made his debut in the top 200 on 14 February 2022.

He made his ATP main draw doubles debut after qualifying as a pair partnering Sem Verbeek at the 2022 ABN AMRO World Tennis Tournament in Rotterdam. As a result, he reached a career-high doubles ranking of World No. 157 on 14 February 2022.

He made his ATP singles debut at the 2022 Libéma Open as a wildcard.^[2] He was also awarded a wildcard in doubles partnering compatriot Bart Stevens. As a result, he reached the top 160 in the singles rankings on 13 June 2022.

2023-2024: Top 150 and Major debuts and first win

He reached a career-high singles ranking of world No. 135 on 11 September 2023.

He qualified for the 2024 Australian Open making his Grand Slam debut^[3][4][5] and defeated Pedro Cachin for his first Major win.

He received a wildcard for his home tournament, the Rotterdam Open.

Ranked No. 177, he also qualified for his second career Major at the 2024 French Open making his debut at the tournament^[6] and defeated Jack Draper.

Singles: 11 (5–6)

More information Result, W–L ...

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Jul 2019	M15 Marburg, Germany	World Tennis Tour	Clay	Louis Wessels	6–7(4–7), 6–7(5–7)
Win	1–1	Aug 2019	M15 Oldenzaal, Netherlands	World Tennis Tour	Clay	Amadatus Admiraal	6–0, 6–4
Win	2–1	Sep 2019	M15 Haren, Netherlands	World Tennis Tour	Clay	Juan Ignacio Galarza	7–5, 6–0
Win	3–1	Oct 2019	M25 Fort Worth, United States	World Tennis Tour	Hard	Ryan Peniston	6–2, 6–0
Loss	3–2	Sep 2020	M25 Klosters, Switzerland	World Tennis Tour	Clay	Holger Vitus Nodskov Rune	4–6, 2–6
Win	4–2	Jun 2021	Almaty, Kazakhstan	Challenger	Clay	Marcelo Tomás Barrios Vera	6–1, 6–2
Loss	4–3	Nov 2021	Guayaquil, Ecuador	Challenger	Clay	Alejandro Tabilo	1–6, 5–7
Loss	4–4	Sep 2022	M15 Sintra, Portugal	World Tennis Tour	Hard	Elliot Benchetrit	4–6, 1–6
Loss	4–5	Jan 2023	Tigre, Argentina	Challenger	Clay	Juan Manuel Cerúndolo	3–6, 6–2, 2–6
Win	5–5	Mar 2023	M25 Quinta do Lago, Portugal	World Tennis Tour	Hard	Naoki Nakagawa	6–1, 5–7, 6–4
Loss	5–6	Apr 2023	Rome, Italy	Challenger	Clay	Sumit Nagal	3–6, 2–6

Close

Doubles: 22 (13–9)

More information Result, W–L ...

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Mar 2019	M15 Doha, Qatar	World Tennis Tour	Hard	Arnaud Bovy	Zizou Bergs Geoffrey Blancaneaux	2–6, 4–6
Win	1–1	Mar 2019	M15 Doha, Qatar	World Tennis Tour	Hard	Michiel De Krom	Arnaud Bovy Dominik Boehler	6–3, 6–3
Loss	1–2	Mar 2019	M15 Manama, Bahrain	World Tennis Tour	Hard	Sidane Pontjodikromo	Alexander Igoshin N. Prashanth	7–6(7–5), 6–7(5–7), [8–10]
Loss	1–3	Apr 2019	M15 Antalya, Turkey	World Tennis Tour	Clay	Sidane Pontjodikromo	Bogdan Bobrov Patrik Niklas-Salminen	2–6, 7–6(10–8), [7–10]
Win	2–3	Jun 2019	M15 Majadahonda, Spain	World Tennis Tour	Clay	Michiel De Krom	Fred Gil Florian Lakat	6–3, 6–3
Win	3–3	Jul 2019	M15 Den Haag, Netherlands	World Tennis Tour	Clay	Ryan Nijboer	M De Krom JL Reis da Silva	6–1, 6–4
Loss	3–4	Jul 2019	Amersfoort, Netherlands	Challenger	Clay	Ryan Nijboer	Harri Heliövaara Emil Ruusuvuori	3–6, 4–6
Loss	3–5	Aug 2019	M15 Brussels, Belgium	World Tennis Tour	Clay	Alec Deckers	Nick Hardt Luca Gelhardt	4–6, 4–6
Loss	3–6	Sep 2019	M15 Pajulahti, Finland	World Tennis Tour	Hard	Ryan Nijboer	Lucas Catarina Baptiste Crepatte	4–6, 6–1, [5–10]
Win	4–6	Oct 2019	M25 Waco, United States	World Tennis Tour	Hard	Ryan Nijboer	Mark Whitehouse Michael Geerts	7–6(7–4), 6–1
Win	5–6	Jan 2020	M15 Monastir, Tunisia	World Tennis Tour	Hard	Bart Stevens	Luke Johnson Hugo Voljacques	6–4, 3–6, [10–8]
Loss	5–7	Mar 2020	M25 Sunderland, United Kingdom	World Tennis Tour	Hard	Bart Stevens	Szymon Walków Jan Zieliński	4–6, 4–6
Win	6–7	Nov 2020	M25 Vale do Lobo, Portugal	World Tennis Tour	Hard	Jelle Sels	Nuno Borges Francisco Cabral	7–6(7–3), 5–7, [10–8]
Loss	6–8	Mar 2021	St. Petersburg, Russia	Challenger	Hard	Sem Verbeek	Roberto Quiroz Christopher Eubanks	4–6, 3–6
Win	7–8	Mar 2021	St. Petersburg II, Russia	Challenger	Hard	Sem Verbeek	Konstantin Kravchuk Denis Yevseyev	6–1, 3–6, [10–5]
Win	8–8	May 2021	Oeiras, Portugal	Challenger	Clay	Tim van Rijthoven	Julian Lenz Roberto Quiroz	6–1, 7–6(7–3)
Win	9–8	June 2021	Almaty, Kazakhstan	Challenger	Clay	Vitaliy Sachko	Vladyslav Manafov Evgenii Tiurnev	7–6(7–4), 6–1
Loss	9–9	Sep 2021	Braga, Portugal	Challenger	Clay	Bart Stevens	Nuno Borges Francisco Cabral	3–6, 7–6 (7–4), [5–10]
Win	10–9	Nov 2021	Guayaquil, Ecuador	Challenger	Clay	Bart Stevens	Diego Hidalgo Cristian Rodríguez	7–5, 6–2
Win	11–9	Mar 2022	Santa Cruz de la Sierra, Bolivia	Challenger	Clay	Bart Stevens	Nicolás Barrientos Miguel Ángel Reyes-Varela	6–4, 3–6, [10–6]
Win	12–9	Apr 2022	Rome, Italy	Challenger	Clay	Bart Stevens	Sadio Doumbia Fabien Reboul	3–6, 7–5, [10–8]
Win	13–9	Oct 2022	Lima, Peru	Challenger	Clay	Max Houkes	Guido Andreozzi Guillermo Durán	7–6(8–6), 3–6, [12–10]

Close

Singles

Current through the 2024 Australian Open.