Stadium: Centre Round: 44 Ground: Hardcourt outdoor
| ITF M25 Darwin | 2023/09/13 08:20 | Moerani Bouzige v Joshua Charlton | 6-2,6-2 |
| UTR Pro California | 2023/07/22 20:23 | Joshua Charlton v Constantinos Djakouris | 6-4,3-6,2-6 |
| UTR Pro California | 2023/07/22 01:30 | Joshua Charlton v Brett Brinkman | 7-6,3-6,6-0 |
| UTR Pro California | 2023/07/21 00:30 | Joshua Charlton v Alexey Nesterov | 6-3,2-6,3-5 |
| UTR Pro California | 2023/07/20 01:00 | Sau Franco, Alan Raul v Joshua Charlton | 3-6,6-4,6-7 |
| UTR Pro California | 2023/07/18 20:00 | Nicolas Cortes Campos v Joshua Charlton | 3-6,4-6 |
| UTR Pro Tennis Series California | 2022/12/23 16:00 | Isaiah Strode v Joshua Charlton | 7-6,4-6,6-4 |
| UTR Pro Tennis Series California | 2022/12/22 21:17 | Joshua Charlton v Giacomo Revelli | 6-1,6-7,6-4 |
| ITF M25 Darwin | 2023/09/13 05:30 | Taiyo Yamanaka v Karpinski, Timmy | 4-6,6-4,6-2 |
| ITF M25 Darwin | 2023/09/12 05:30 | Karpinski, Timmy v Charlie Pade | 7-6,5-7,10-4 |
| ITF M25 Darwin | 2023/09/11 05:30 | Matt Hulme v Karpinski, Timmy | 2-6,6-3,7-10 |
| ITF M15 Caloundra | 2023/07/31 00:00 | Karpinski, Timmy v Fields, Omar | 2-6,2-6 |
| ITF M15 Caloundra | 2023/07/30 00:00 | Karpinski, Timmy v Kenta Nakamura | 6-4,6-2 |
| ITF M15 Caloundra | 2023/07/23 01:00 | Karpinski, Timmy v Quang Hien Pham, Hien | 2-6,4-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/25 05:00 | Karpinski, Timmy v Stefan Vujic | 4-6,3-6 |
| ITF M25 Jakarta | 2023/06/06 02:00 | Karpinski, Timmy v Kodancha Srinivasan | 5-7,5-7 |