| ITF M15 Tauranga | 2022/12/18 03:25 | Tai Leonard Sach v Sam Oster | 7-6,6-3 |
| UTR Pro Tennis Series Brisbane | 2021/09/20 01:30 | Tai Leonard Sach v Sam Oster | 3-6,4-6 |
| ITF M15 Caloundra | 2023/08/01 00:00 | Elijah Cham v Tai Leonard Sach | 6-4,4-6,3-10 |
| ITF M15 Caloundra | 2023/07/31 00:00 | Jesse Delaney v Tai Leonard Sach | 2-6,7-6,10-12 |
| ITF M15 Caloundra | 2023/07/25 23:55 | Luke Sorensen v Tai Leonard Sach | 2-6,7-6,7-6 |
| ITF M15 Caloundra | 2023/07/25 00:00 | Tai Leonard Sach v Daiki Yoshimura | 6-4,6-3 |
| ITF M15 Caloundra | 2023/07/24 04:00 | Tai Leonard Sach v Mason Naumovski | 6-0,6-4 |
| ITF M15 Nakhon Si Thammarat - kval | 2023/07/16 08:00 | Patorn Hanchaikul v Tai Leonard Sach | 7-6,6-2 |
| ITF M15 Nakhon Si Thammarat - kval | 2023/07/09 10:20 | Thanapet Chanta v Tai Leonard Sach | 5-7,6-3,10-7 |
| ITF M15 Nakhon Si Thammarat | 2023/07/03 02:00 | Taisei Ichikawa v Tai Leonard Sach | 6-3,6-1 |
| ITF M15 Caloundra | 2023/08/01 01:45 | James Watt v Sam Oster | 6-7,6-2,7-10 |
| ITF M15 Caloundra | 2023/07/31 00:00 | Sam Oster v Seungmin Park | 6-2,6-2 |
| ITF M15 Caloundra | 2023/07/30 00:00 | Thomas Nicholas Gadecki v Sam Oster | 4-6,4-6 |
| ITF M15 Caloundra | 2023/07/25 02:05 | Callum Gale v Sam Oster | 5-7,7-5,10-3 |
| ITF M15 Caloundra | 2023/07/24 06:30 | Sam Oster v Lawrence Bataljin | 5-7,6-3,10-8 |
| ITF M15 Caloundra | 2023/07/23 01:00 | William Jesser v Sam Oster | 3-6,1-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/02 05:45 | Sam Oster v Corban Crowther | 1-6,2-6 |
| ITF M15 Celje | 2023/06/26 08:00 | Miha Vetrih v Sam Oster | 6-0,6-2 |