Zachary Viiala
2023
| J200Gladbeck | 2R | |
| J300Bamberg | 2R | |
| J100Sobota | [3] | 1R |
| J100Mornington | [2] | Win |
| J100Canberra | [2] | Win |
| J300Sarawak | 2R | |
| J300Nonthaburi | 2R | |
| J200Nonthaburi | 2R | |
| J500Cairo | 1R | |
| Australian Open Junior | 1R | |
| J300Traralgon | 1R |
2022
| J1Guadalajara | 1R | |
| J4Nonthaburi-3 | [3] | Quarter |
| J2Nonthaburi | [16] | 3R |
| J3Sarawak | 2R | |
| J1Sarawak | 2R | |
| J5Adelaide-2 | [1] | Semi |
| J5Adelaide | [1] | Win |
2021
| J4Darwin | [7] | Quarter |
| J5Darwin | [5] | Quarter |
| J3Mornington-2 | 2R | |
| J3Mornington | Quarter |
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 J200Gladbeck
| W | 1R | Robert Guna | 3-6 6-2 6-3 |
| L | 2R | Jakub Filip | 2-6 1-6 |
2023 J300Bamberg
| W | 1R | Lorenzo Angelini | 6-1 6-2 |
| L | 2R | Lasse Poertner | 4-6 4-6 |
2023 J100Sobota
| L | 1R | Vojtech Vales | 6-7 7-5 3-6 |
2023 J100Mornington
| 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 J100Canberra
| 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 J300Sarawak
| W | 1R | Aditya Govila | 6-3 6-4 |
| L | 2R | Fadi Bidan | 2-6 6-3 0-6 |
2023 J300Nonthaburi
| W | 1R | Oskar Grzegorzewski | 6-2 6-2 |
| L | 2R | Yi Zhou | 2-6 6-7 |
2023 J200Nonthaburi
| W | 1R | Poonthong Komopisut | 6-1 6-1 |
| L | 2R | Jangjun Kim | 6-3 3-6 5-7 |
2023 J500Cairo
| L | 1R | Paul Barbier Gazeu | 2-6 1-6 |
2023 Australian Open Junior
| L | 1R | Zoran Ludoski | 5-7 5-7 |
2023 J300Traralgon
| L | 1R | Keegan Rice | 4-6 6-4 1-6 |
2022 J1Guadalajara
| L | 1R | Cooper Williams | 2-6 4-6 |
2022 J4Nonthaburi-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 J2Nonthaburi
| W | 2R | Penn Charusorn | 6-0 6-2 |
| L | 3R | Aryan Shah | 3-6 1-6 |
2022 J3Sarawak
| W | 1R | Michael Dylan Jimenez | 6-3 6-2 |
| L | 2R | Aryan Shah | 6-4 2-6 3-6 |
2022 J1Sarawak
| W | 1R | Darrshan Suresh Kumar | 6-2 6-1 |
| L | 2R | Fadi Bidan | 3-6 6-4 4-6 |
2022 J5Adelaide-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 J5Adelaide
| 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 J4Darwin
| 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 J5Darwin
| 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 J3Mornington-2
| W | 1R | Alexander Patane | 6-3 6-1 |
| L | 2R | Jeremy Jin | 3-6 5-7 |
2021 J3Mornington
| W | 1R | Dusan Rsovac | 6-2 7-6 |
| W | 2R | Darcy Nicholls | 7-5 6-3 |
| L | QF | Corban Crowther | 2-6 6-7 |
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