Stadium: Court 10 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Caloundra | 2023/07/26 02:05 | Ryuki Matsuda v James Watt | 1-6,6-3,6-4 |
| ITF M15 Los Angeles | 2023/06/22 18:00 | James Watt v Omni Kumar | 2-6,2-6 |
| ITF M15 Los Angeles | 2023/06/21 21:30 | Guillaume Dalmasso v James Watt | 1-6,5-7 |
| ITF M15 San Diego | 2023/06/05 17:00 | James Watt v Sebastian Gorzny | 2-6,3-6 |
| ITF M15 Tauranga | 2022/12/19 21:00 | Kody Pearson v James Watt | 6-4,6-4 |
| ITF M15 Wellington | 2022/12/17 21:00 | Ajeet Rai v James Watt | 6-2,6-4 |
| ITF M15 Wellington | 2022/12/17 01:55 | Jeremy Beale v James Watt | 3-6,4-6 |
| ITF M15 Wellington | 2022/12/16 05:15 | James Watt v Jack Loutit | 6-4,6-3 |
| 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 |
| ITF M15 Store | 2023/06/19 08:30 | Pietro Pampanin v Sam Oster | 6-4,6-2 |