Matthew Johnstone
2022
| J4Hochiminhcity-2 | [7] | Win |
| J4Hochiminhcity | [8] | Quarter |
| J3Kualalumpur | 1R | |
| J3Sarawak | 3R | |
| J1Sarawak | 1R | |
| Jb1Pune | 1R | |
| J4Singapore-3 | 1R | |
| J5Hanko | [4] | Quarter |
| J4Kaarina | 1R | |
| J5Yogyakarta-2 | [2] | Semi |
| J5Yogyakarta | [2] | 3R |
| J4Santodomingo-2 | [6] | 3R |
| J4Santodomingo | [5] | 3R |
| J3Cancun-3 | 2R | |
| J3Cancun-2 | 2R | |
| J3Cancun | 1R | |
| J3Tampico | 2R | |
| J5Stavanger | [1] | 1R |
2021
| J5Hanko | [2] | 2R |
| J4Tbilisi | [3] | 1R |
| J5Tbilisi | [1] | Quarter |
| J4Ventspils | [1] | 1R |
| J5Jurmala-2 | [2] | 1R |
| J4Adazi-2 | [3] | 1R |
| J5Singapore-3 | [2] | Semi |
| J5Singapore-2 | [5] | Final |
| J5Singapore | [3] | Semi |
Nation
SGP
Year-end Junior World Ranking
- Year-end 2022 606th
- Year-end 2021 506th
- Year-end 2020 1238th
- Year-end 2019 3018th
Rival
Joewyn Rey Pascua (1-1)
Ching Chang Chiu (2-0)
Marco Alejandro Cordoba Garcia (2-0)
Nathan Anthony Barki (0-2)
Brendan Nicholas Hendrata (2-0)
Match Details
2022 J4Hochiminhcity-2
| W | 1R | Ching Chang Chiu | 6-1 6-3 |
| W | 2R | Pannawat Suttisomboon | 6-1 6-2 |
| W | QF | Minh Tuan Dinh Viet | 6-3 7-5 |
| W | SF | Heremana Courte | - - - |
| W | F | Joewyn Rey Pascua | 6-2 1-6 6-3 |
2022 J4Hochiminhcity
| W | 1R | Nam Nguyen | 6-0 7-5 |
| W | 2R | Ching Chang Chiu | 6-1 7-5 |
| L | QF | Joewyn Rey Pascua | 6-7 4-6 |
2022 J3Kualalumpur
| L | 1R | Leroy Yong | 6-3 2-6 4-6 |
2022 J3Sarawak
| W | 1R | Kasra Rahmani | 2-0 |
| W | 2R | Rajata Thamcharoensatit | 6-3 3-6 6-3 |
| L | 3R | Alexander Despoja | 1-6 0-6 |
2022 J1Sarawak
| L | 1R | Kriish Tyagi | 4-6 4-6 |
2022 Jb1Pune
| L | 1R | Caheer Warik | 5-7 6-7 |
2022 J4Singapore-3
| L | 1R | Heinz Aslan Carbonilla | 6-1 2-6 2-6 |
2022 J5Hanko
| W | 2R | Vatsal Rukhaiyar | 6-3 6-3 |
| W | 3R | Julius Leino | 7-6 6-3 |
| L | QF | Emil Kindhult | 2-6 2-6 |
2022 J4Kaarina
| L | 1R | Filip Gustafsson | 1-6 4-6 |
2022 J5Yogyakarta-2
| W | 2R | Christopher Bennett Wirahadipoernomo | 6-3 6-1 |
| W | 3R | Axl Lajon Gonzaga | 6-4 1-6 7-5 |
| W | QF | Penn Charusorn | 7-6 6-2 |
| L | SF | Vinhhien Truong | 2-6 6-4 1-6 |
2022 J5Yogyakarta
| W | 2R | Renaldi Aqila A Salim | 7-6 3-6 6-4 |
| L | 3R | Putu Agassi Pranata Nida | 7-6 2-5 |
2022 J4Santodomingo-2
| W | 1R | Marco Alejandro Cordoba Garcia | 6-1 6-0 |
| W | 2R | Leo Fortier-Gariepy | 6-1 6-3 |
| L | 3R | Vasco Trocca | 5-7 6-2 3-6 |
2022 J4Santodomingo
| W | 1R | Marco Alejandro Cordoba Garcia | 6-0 6-1 |
| W | 2R | Iker Ibarrondo Suarez | 6-1 6-2 |
| L | 3R | Daniel Baquero | 4-6 1-6 |
2022 J3Cancun-3
| W | 1R | Santiago Flyckt | 4-6 7-6 6-3 |
| L | 2R | Luca Lemaitre Vilchis | 1-6 1-2 |
2022 J3Cancun-2
| W | 1R | Leonardo Zarate | 6-0 6-1 |
| L | 2R | Thanaphat Boosarawongse | 0-6 3-6 |
2022 J3Cancun
| L | 1R | Eduardo Bribiesca Ponce | 3-6 1-6 |
2022 J3Tampico
| W | 1R | Patrick Lohmann | 6-4 6-4 |
| L | 2R | Jacob Olar | 3-6 5-7 |
2022 J5Stavanger
| L | 1R | Ludwig Hermann | 3-6 2-6 |
2021 J5Hanko
| W | 1R | Lucas Rosvall | 6-3 6-4 |
| L | 2R | Jan Kusy | 0-6 2-6 |
2021 J4Tbilisi
| L | 1R | Alex Khamrotau | 4-6 4-6 |
2021 J5Tbilisi
| W | 1R | Vivek Kolluru | 7-5 6-1 |
| W | 2R | Hassan Baroudi | 7-6 6-7 6-4 |
| L | QF | Antoine Nivault | 2-6 6-2 2-6 |
2021 J4Ventspils
| L | 1R | Tauras Mickus | 6-3 2-6 1-6 |
2021 J5Jurmala-2
| L | 1R | Krisjanis Sulcs | 6-2 6-7 3-6 |
2021 J4Adazi-2
| L | 1R | Anton Kastsenich | 6-7 2-6 |
2021 J5Singapore-3
| W | 1R | Akash Karekatte | 6-1 6-3 |
| W | 2R | Nikhil Mukherjee | 6-7 6-4 1-0 |
| W | QF | Brendan Nicholas Hendrata | 6-2 7-5 |
| L | SF | Jagger Zhen Chih Ong Patzwald | 0-6 3-6 |
2021 J5Singapore-2
| W | 1R | Akash Karekatte | 6-3 1-6 6-2 |
| W | 2R | Maximus Zavier Wong | 6-3 6-0 |
| W | QF | Brendan Nicholas Hendrata | 1-6 6-4 6-4 |
| W | SF | Aaron Ventura | 6-4 6-0 |
| L | F | Nathan Anthony Barki | 2-6 0-6 |
2021 J5Singapore
| W | 1R | Aaron Ventura | 6-3 6-3 |
| W | 2R | Aryaman Rajeev | 7-5 6-0 |
| W | QF | Maximus Zavier Wong | 6-2 5-7 6-1 |
| L | SF | Nathan Anthony Barki | 1-6 2-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9280, Number of registered players: 5,767, Number of registered results: 305,685