| Challenger Burnie | 2023/01/29 02:45 | Edward Winter v Sam Ryan Ziegann | 6-1,6-4 |
| ITF M15 Jakarta Qual | 2023/01/23 02:30 | Ishaque Eqbal v Sam Ryan Ziegann | 6-1,6-0 |
| ITF M15 Jakarta Qual | 2023/01/22 02:30 | Sam Ryan Ziegann v Lazar Markovic | 6-1,6-4 |
| ITF M15 Jakarta | 2023/01/16 02:25 | Yunseok Jang v Sam Ryan Ziegann | 6-1,7-5 |
| ITF M15 Jakarta | 2023/01/15 04:10 | Sam Ryan Ziegann v Gunawan Trismuwantara | 6-2,6-1 |
| Challenger Sydney | 2022/10/30 00:50 | Sam Ryan Ziegann v Ken Cavrak | 6-7,3-6 |
| ITF M25 Tay Ninh | 2022/10/06 04:05 | Nam Hoang Ly v Sam Ryan Ziegann | 6-0,6-2 |
| ITF M25 Tay Ninh | 2022/10/04 02:00 | Blake Bayldon v Sam Ryan Ziegann | 3-6,7-5,2-6 |
| Challenger Traralgon | 2022/01/02 00:00 | Rubin Statham v Zachary Viiala | 6-1,6-3 |
| UTR Pro Tennis Series Canberra | 2021/12/11 23:30 | Nathan Boniel v Zachary Viiala | 6-4,6-2 |
| UTR Pro Tennis Series Canberra | 2021/12/10 22:00 | Zachary Viiala v David Qariaqus | 6-1,6-0 |
| UTR Pro Tennis Series Canberra | 2021/12/10 00:45 | Zachary Viiala v Tomislav E Papac | 6-2,6-4 |
| UTR Pro Tennis Series Canberra | 2021/12/07 23:30 | Jeremy Jin v Zachary Viiala | 6-4,4-6,6-1 |
| UTR Pro Tennis Series Canberra | 2021/12/07 01:00 | Nicholas De Vivo v Zachary Viiala | 0-6,4-6 |
| UTR Pro Tennis Series Carrara | 2021/11/05 23:00 | Zachary Viiala v Patrick C Beadman | 6-1,6-1 |
| UTR Pro Tennis Series Carrara | 2021/11/04 02:00 | Zachary Viiala v Cade Birrell | 7-5,5-3 |