| UTR Pro Tennis Series - Carrara | 2021/10/20 02:00 | Zachary Viiala v Henry Lamchinniah | 4-6,6-0,6-3 |
| UTR Pro Tennis Series - Carrara | 2021/10/19 03:00 | Zachary Viiala v Calum Puttergill | 0-6,2-6 |
| UTR Pro Tennis Series - Carrara | 2021/10/17 23:00 | Blazo Djurovic v Zachary Viiala | 7-6,4-6,6-4 |
| UTR Pro Tennis Series Brisbane | 2021/07/31 00:30 | Hayden Jones v Zachary Viiala | 6-4,2-6,3-6 |
| UTR Pro Tennis Series Brisbane | 2021/07/30 02:00 | Zachary Viiala v Scott Jones | 1-6,6-7 |
| UTR Pro Tennis Series Brisbane | 2021/07/28 23:00 | Zachary Viiala v Casey Hoole | 6-7,6-6 |
| UTR Pro Tennis Series Brisbane | 2021/07/28 00:30 | Louis Clark v Zachary Viiala | 3-6,0-5 |
| UTR Pro Tennis Series Brisbane | 2021/07/27 02:00 | Tomislav E Papac v Zachary Viiala | 1-6,6-7 |
| UTR Pro Tennis Series - Carrara | 2021/10/22 01:00 | Calum Puttergill v Sam Oster | 6-2,5-1 |
| UTR Pro Tennis Series - Carrara | 2021/10/19 01:30 | Blazo Djurovic v Sam Oster | 6-3,1-6,6-3 |
| UTR Pro Tennis Series - Carrara | 2021/10/18 00:00 | Sam Oster v Henry Lamchinniah | 4-6,6-3,6-1 |
| UTR Pro Tennis Series - Carrara | 2021/10/16 03:30 | Sam Ryan Ziegann v Sam Oster | 6-1,6-1 |
| UTR Pro Tennis Series - Carrara | 2021/10/15 23:00 | Alexander Crnokrak v Sam Oster | 6-1,5-1 |
| UTR Pro Tennis Series - Carrara | 2021/10/12 03:00 | Patrick C Beadman v Sam Oster | 2-6,5-7 |
| UTR Pro Tennis Series - Carrara | 2021/10/11 00:30 | Sam Oster v Jack Moore | 6-4,6-3 |
| UTR Pro Tennis Series Brisbane | 2021/09/25 23:00 | Sam Oster v Leo Phijidvijan | 4-6,6-4,6-1 |