Kaj Quirijns
2022
| J3 LOUGHBOROUGH-3 | 1R | |
| J3 SAINTGREGOIRE | [8] | 1R | 
| J3 LESZNO | 2R | |
| J4 POREC | [5] | 2R | 
| J3 THEHAGUE | 2R | |
| J3 SANTODOMINGO-2 | [3] | Semi | 
| J3 SANTODOMINGO | [3] | Quarter | 
| J3 SANJOSE-2 | [6] | Quarter | 
| J3 SANJOSE | [6] | Quarter | 
| J4 SANTODOMINGO-2 | [1] | Win | 
| J4 SANTODOMINGO | [1] | Quarter | 
| J3 DOORN | 1R | |
| J3 CANBERRA | [8] | 1R | 
| J2 CHANDIGARH | 1R | 
2021
| J4 BOCARATON | [7] | Quarter | 
| J3 ELPRATDELLOBREGAT | 1R | |
| J3 WELS | [8] | 2R | 
| J3 SOBOTA | 2R | |
| J3 POZNAN | 1R | |
| J4 ROTTERDAM | [2] | Semi | 
| J4 EINDHOVEN | [5] | 1R | 
| J3 CANCUN | 2R | |
| J4 PLANTATION | [7] | 1R | 
| J3 SIERRE | [4] | 1R | 
| J3 RAMATHASHARON | Quarter | |
| J4 RAANANA | [6] | 1R | 
| J5 TALLINN | [3] | 2R | 
| J5 TARTU | [3] | Semi | 
| J5 ANTALYA | 1R | |
| J4 ANTALYA | 1R | |
| J5 OFFENBACH | [2] | 2R | 
| J4 FRANKFURT | 1R | 
Nation
SUI
Year-end Junior World Ranking
- Year-end 2022 445th
- Year-end 2021 427th
- Year-end 2020 547th
- Year-end 2019 1936th
Match Details
2022 J3 LOUGHBOROUGH-3
| L | 1R | Roy Keegan | 2-6 4-6 | 
2022 J3 SAINTGREGOIRE
| L | 1R | Mae Malige | 2-6 2-6 | 
2022 J3 LESZNO
| W | 1R | Leon Zaorski | 7-6 6-3 | 
| L | 2R | Carlo Alberto Caniato | 1-6 2-6 | 
2022 J4 POREC
| L | 2R | Nikola Lulic | 4-6 3-6 | 
2022 J3 THEHAGUE
| W | 1R | Pepijn Bastiaansen | 4-6 7-5 6-3 | 
| L | 2R | Thijs Boogaard | 3-6 6-7 | 
2022 J3 SANTODOMINGO-2
| W | 1R | Javier Urgal | 6-0 6-0 | 
| W | 2R | Lachlan Dickinson | 6-2 6-1 | 
| W | QF | Aditya Govila | 6-4 7-6 | 
| L | SF | Hoyoung Roh | 3-6 2-6 | 
2022 J3 SANTODOMINGO
| W | 1R | Marco Alejandro Cordoba Garcia | 6-1 6-0 | 
| W | 2R | Roy Keegan | 5-7 6-3 7-6 | 
| L | QF | Hayden Khoo Menon | 3-6 6-7 | 
2022 J3 SANJOSE-2
| W | 1R | Hayden Khoo Menon | 6-4 6-4 | 
| W | 2R | Shrikeshav Murugesan | 6-2 6-2 | 
| L | QF | Jelani Sarr | 6-7 3-6 | 
2022 J3 SANJOSE
| W | 1R | Juan Pablo Valdez Guzon | 6-7 6-4 6-1 | 
| W | 2R | Krish Arora | - - - | 
| L | QF | Tygen Goldammer | 5-7 6-4 1-6 | 
2022 J4 SANTODOMINGO-2
| W | 1R | Gerce Jonathan Jean Baptiste | 6-0 6-0 | 
| W | 2R | Carlos Gamboa | 6-1 6-2 | 
| W | 3R | Maximus Dussault | 6-4 7-5 | 
| W | QF | Vasco Trocca | 6-2 5-7 6-2 | 
| W | SF | Roy Keegan | 6-3 6-0 | 
| W | F | David Krasner | 6-3 6-4 | 
2022 J4 SANTODOMINGO
| W | 1R | Marco Antonio Calil Silveira | 6-3 6-0 | 
| W | 2R | Sammy Nieder | 6-3 6-1 | 
| W | 3R | Duarte Mestre | 6-0 6-0 | 
| L | QF | Jean-Nicolas Leblanc | 2-6 4-6 | 
2022 J3 DOORN
| L | 1R | David Fix | 3-6 6-4 3-6 | 
2022 J3 CANBERRA
| L | 1R | Taj Hibbert | 3-6 2-5 | 
2022 J2 CHANDIGARH
| L | 1R | Yuvan Nandal | 1-6 2-6 | 
2021 J4 BOCARATON
| W | 1R | Jose Murariu | 4-6 6-3 6-3 | 
| W | 2R | Tygen Goldammer | 6-3 7-6 | 
| L | QF | Alex Michelsen | 2-6 3-6 | 
2021 J3 ELPRATDELLOBREGAT
| L | 1R | Martin Landaluce | 3-6 3-6 | 
2021 J3 WELS
| W | 1R | Piet Luis Pinter | 6-2 6-4 | 
| L | 2R | Dominique Rolland | 3-6 3-6 | 
2021 J3 SOBOTA
| W | 1R | Valentin Basel | 3-6 7-6 7-5 | 
| L | 2R | Mateusz Kulakowski | 1-6 6-4 0-6 | 
2021 J3 POZNAN
| L | 1R | Adam Kresina | 1-6 1-6 | 
2021 J4 ROTTERDAM
| W | 1R | Kyvan Rietkerk | 7-6 6-3 | 
| W | 2R | Jacco Arends | 6-2 4-6 7-5 | 
| W | QF | Alexander Watanabe Eriksson | 6-1 6-4 | 
| L | SF | Jay Dylan Hara Friend | 3-6 0-6 | 
2021 J4 EINDHOVEN
| L | 1R | Lukas Escher | 6-7 4-6 | 
2021 J3 CANCUN
| W | 1R | Miguel Angel Alonso | 4-6 6-3 6-3 | 
| L | 2R | Ryan Colby | 1-6 4-6 | 
2021 J4 PLANTATION
| L | 1R | Zane Ford | 3-6 6-7 | 
2021 J3 SIERRE
| L | 1R | Nicolas Kobelt | 6-3 4-6 4-6 | 
2021 J3 RAMATHASHARON
| W | 1R | Amit Vales | 6-4 6-1 | 
| W | 2R | Adi Dagan | 6-1 6-3 | 
| L | QF | Jaden Weekes | 5-7 4-6 | 
2021 J4 RAANANA
| L | 1R | Asaf Schwartz | 3-6 4-6 | 
2021 J5 TALLINN
| W | 1R | Romet Moosar | 6-2 6-3 | 
| L | 2R | Romain Gales | 3-6 7-6 3-6 | 
2021 J5 TARTU
| W | 1R | Aljaz Kirbis | 6-1 6-1 | 
| W | 2R | Indrek Soome | 6-4 7-5 | 
| W | QF | Filip Apltauer | 6-4 6-3 | 
| L | SF | Jakub Prachar | 2-6 1-6 | 
2021 J5 ANTALYA
| L | 1R | Noa Vukadin | 7-5 1-6 2-6 | 
2021 J4 ANTALYA
| L | 1R | Aleksandar Tomas | 4-6 1-6 | 
2021 J5 OFFENBACH
| W | 1R | Kiano Litz | 7-5 6-1 | 
| L | 2R | Rudy Ceccon | 2-6 6-2 0-6 | 
2021 J4 FRANKFURT
| L | 1R | Bor Artnak | 5-7 1-6 | 
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9942, Number of registered players: 6,164, Number of registered results: 343,780