Zachary Viiala
2023
| J200 GLADBECK | 2R | |
| J300 BAMBERG | 2R | |
| J100 SOBOTA | [3] | 1R |
| J100 MORNINGTON | [2] | Win |
| J100 CANBERRA | [2] | Win |
| J300 SARAWAK | 2R | |
| J300 NONTHABURI | 2R | |
| J200 NONTHABURI | 2R | |
| J500 CAIRO | 1R | |
| AUSTRALIAN OPEN JUNIOR | 1R | |
| J300 TRARALGON | 1R |
2022
| J1 GUADALAJARA | 1R | |
| J4 NONTHABURI-3 | [3] | Quarter |
| J2 NONTHABURI | [16] | 3R |
| J3 SARAWAK | 2R | |
| J1 SARAWAK | 2R | |
| J5 ADELAIDE-2 | [1] | Semi |
| J5 ADELAIDE | [1] | Win |
2021
| J3 GOLDCOAST-2 | [3] | Semi |
| J3 GOLDCOAST | [3] | Final |
| J5 PLAYFORD-2 | [3] | Semi |
| J5 PLAYFORD | [3] | Semi |
| J5 BRISBANE | [3] | Win |
| J5 GOLDCOAST | [4] | Semi |
| J4 DARWIN | [7] | Quarter |
| J5 DARWIN | [5] | Quarter |
| J3 MORNINGTON-2 | 2R | |
| J3 MORNINGTON | Quarter |
2020
Nation
AUS
Year-end Junior World Ranking
- Year-end 2023 207th
- Year-end 2022 401th
- Year-end 2021 291th
- Year-end 2020 2157th
Match Details
2023 J200 GLADBECK
| W | 1R | Robert Guna | 3-6 6-2 6-3 |
| L | 2R | Jakub Filip | 2-6 1-6 |
2023 J300 BAMBERG
| W | 1R | Lorenzo Angelini | 6-1 6-2 |
| L | 2R | Lasse Poertner | 4-6 4-6 |
2023 J100 SOBOTA
| L | 1R | Vojtech Vales | 6-7 7-5 3-6 |
2023 J100 MORNINGTON
| W | 2R | Boyd Schreiber | 6-1 3-6 11-9 |
| W | 3R | Finley Dyer | 6-1 6-0 |
| W | QF | Zane Stevens | 6-1 6-2 |
| W | SF | Hugh Winter | 6-2 6-4 |
| W | F | Jarrod Joyce | 7-5 6-0 |
2023 J100 CANBERRA
| W | 2R | Jay Fairclough | 6-2 6-1 |
| W | 3R | Daniel Jovanovski | 6-2 6-2 |
| W | QF | Jake Dembo | 6-1 6-3 |
| W | SF | Brendan Loh | 6-0 6-2 |
| W | F | Hugh Winter | 6-2 6-2 |
2023 J300 SARAWAK
| W | 1R | Aditya Govila | 6-3 6-4 |
| L | 2R | Fadi Bidan | 2-6 6-3 0-6 |
2023 J300 NONTHABURI
| W | 1R | Oskar Grzegorzewski | 6-2 6-2 |
| L | 2R | Yi Zhou | 2-6 6-7 |
2023 J200 NONTHABURI
| W | 1R | Poonthong Komopisut | 6-1 6-1 |
| L | 2R | Jangjun Kim | 6-3 3-6 5-7 |
2023 J500 CAIRO
| L | 1R | Paul Barbier Gazeu | 2-6 1-6 |
2023 AUSTRALIAN OPEN JUNIOR
| L | 1R | Zoran Ludoski | 5-7 5-7 |
2023 J300 TRARALGON
| L | 1R | Keegan Rice | 4-6 6-4 1-6 |
2022 J1 GUADALAJARA
| L | 1R | Cooper Williams | 2-6 4-6 |
2022 J4 NONTHABURI-3
| W | 2R | Minh Tuan Dinh Viet | 6-0 6-2 |
| W | 3R | Jaishnav Shinde | 6-2 6-1 |
| L | QF | Joewyn Rey Pascua | 6-7 6-3 3-6 |
2022 J2 NONTHABURI
| W | 2R | Penn Charusorn | 6-0 6-2 |
| L | 3R | Aryan Shah | 3-6 1-6 |
2022 J3 SARAWAK
| W | 1R | Michael Dylan Jimenez | 6-3 6-2 |
| L | 2R | Aryan Shah | 6-4 2-6 3-6 |
2022 J1 SARAWAK
| W | 1R | Darrshan Suresh Kumar | 6-2 6-1 |
| L | 2R | Fadi Bidan | 3-6 6-4 4-6 |
2022 J5 ADELAIDE-2
| W | 1R | Jarrod Joyce | 6-3 6-4 |
| W | 2R | Rintaro Shukuda | 4-6 6-2 3-0 |
| W | QF | Diordan Macababbad | 6-3 6-1 |
| L | SF | Pavle Marinkov | 2-6 3-6 |
2022 J5 ADELAIDE
| W | 1R | Michael Smith | 6-4 6-2 |
| W | 2R | Oliver Thoeny | 6-4 6-4 |
| W | QF | Noah Brownrigg | 7-5 7-5 |
| W | SF | Rintaro Shukuda | 7-6 6-1 |
| W | F | Alexander Despoja | 6-1 6-4 |
2021 J3 GOLDCOAST-2
| W | 1R | Gautham Santhosh | 4-0 4-1 |
| W | 2R | Radu Cojocaru | 4-0 4-1 |
| W | QF | Thomas Nicholas Gadecki | 3-6 7-5 12-10 |
| L | SF | Jeremy Jin | 7-5 3-6 3-6 |
2021 J3 GOLDCOAST
| W | 1R | Troy Delgado | 6-0 6-0 |
| W | 2R | Christian Anthony Salmeron | 6-1 6-1 |
| W | QF | Thomas Nicholas Gadecki | 6-3 6-4 |
| W | SF | Shuannon Tricerri | 6-1 6-2 |
| L | F | Jeremy Jin | 7-6 3-6 2-6 |
2021 J5 PLAYFORD-2
| W | 1R | Aiden Lim | 6-0 6-1 |
| W | 2R | Hugh Winter | 6-2 6-2 |
| W | QF | Peter Politis | 6-2 6-0 |
| L | SF | Edward Winter | 3-6 6-4 5-7 |
2021 J5 PLAYFORD
| W | 1R | Patrick Findlay | 6-2 6-0 |
| W | 2R | Jake Dembo | 6-1 6-2 |
| W | QF | Edward Vo | 6-2 6-1 |
| L | SF | Hayden Jones | 3-6 2-6 |
2021 J5 BRISBANE
| W | 1R | Gautham Santhosh | 6-0 6-0 |
| W | 2R | Oliver Hadley | 6-1 6-0 |
| W | QF | Kaito Nelson | 6-0 6-0 |
| W | SF | Jeremy Jin | 3-6 6-1 7-5 |
| W | F | Hayden Jones | 7-6 6-7 6-1 |
2021 J5 GOLDCOAST
| W | 1R | Michael Kokkinis | 6-1 6-4 |
| W | 2R | Alec Gaudin | 6-4 6-3 |
| W | QF | Pavle Marinkov | 6-2 6-2 |
| L | SF | Jeremy Jin | 3-6 0-6 |
2021 J4 DARWIN
| W | 1R | Cooper Wilkinson | 6-3 6-3 |
| W | 2R | James Mcpherson | 6-1 6-2 |
| L | QF | Jeremy Jin | 6-4 6-7 1-6 |
2021 J5 DARWIN
| W | 1R | Ethan Gottschalk | 6-1 6-1 |
| W | 2R | Benjamin Ancheta | 6-0 6-1 |
| L | QF | Jeremy Jin | 7-6 0-6 6-7 |
2021 J3 MORNINGTON-2
| W | 1R | Alexander Patane | 6-3 6-1 |
| L | 2R | Jeremy Jin | 3-6 5-7 |
2021 J3 MORNINGTON
| W | 1R | Dusan Rsovac | 6-2 7-6 |
| W | 2R | Darcy Nicholls | 7-5 6-3 |
| L | QF | Corban Crowther | 2-6 6-7 |
2020 J4 CHRISTCHURCH
| L | 1R | Noritaka Koizumi | 2-6 4-6 |
2020 J4 WELLINGTON-2
| W | 1R | Ryan Carter | 6-1 6-4 |
| W | 2R | Taiyo Uenoyama | 5-7 6-3 6-2 |
| L | 3R | Pavle Marinkov | 2-6 6-0 4-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10193, Number of registered players: 6,473, Number of registered results: 375,648