Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Portimao | 2023/03/12 09:00 | Joshua Schaefer v Glauco Pinheiro Da Cruz Junior | 7-5,6-3 |
| ITF M25 Quinta Do Lago | 2023/03/07 12:30 | Peter Sychev v Joshua Schaefer | 0-6,7-6,14-12 |
| ITF M25 Faro | 2023/02/20 11:30 | Imanol L Morillo v Joshua Schaefer | 6-2,6-3 |
| ITF M25 Faro | 2023/02/19 10:00 | Joshua Schaefer v Dhruva Mulye | 6-0,6-2 |
| ITF M15 Oberhaching | 2023/02/12 11:30 | Ben Jones v Joshua Schaefer | 6-2,6-0 |
| ITF M25 Vila Real de Santo Antonio | 2023/02/06 10:00 | Francisco Vilaca v Joshua Schaefer | 2-6,6-4,10-5 |
| ITF M15 Jakarta Qual | 2023/01/22 02:30 | Lakshya Gupta v Joshua Schaefer | 6-3,6-2 |
| ITF M15 Jakarta | 2023/01/15 02:30 | Lucky Candra Kurniawan v Joshua Schaefer | 4-6,6-2,10-3 |
| ITF M25 Portimao | 2023/03/12 09:00 | Ondrej Hujo v Carlos Garcia Mondelo | 2-6,0-6 |
| ITF M25 Quinta Do Lago | 2023/03/08 12:00 | Luis Miguel Saraiva v Carlos Garcia Mondelo | 5-7,7-6,10-4 |
| ITF M25 Madrid | 2022/09/11 15:30 | Carlos Garcia Mondelo v Luke Simkiss | 3-6,2-6 |