Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/10/04 08:00 | Abhinav Sanjeev Shanmugam v Martin Katz | 3-6,3-6 |
| ITF M15 Monastir | 2021/10/03 08:00 | Martin Katz v Ajay Pruthvi Nemakal | 6-0,6-3 |
| ITF M15 Monastir | 2021/09/30 12:55 | Martin Katz v Gage Brymer | 4-6,6-4,1-6 |
| ITF M15 Monastir | 2021/09/28 08:00 | Lohithaksha Bathrinath v Martin Katz | 6-7,0-6 |
| ITF M15 Monastir | 2021/09/27 09:00 | Bastian A U Santander v Martin Katz | 0-6,0-6 |
| ITF M15 Monastir | 2021/09/26 10:30 | Martin Katz v Jiaqi Duan | 6-4,6-3 |
| ITF M25 Eupen | 2021/09/08 09:50 | Buvaysar Gadamauri v Martin Katz | 6-3,6-3 |
| ITF M15 Huy | 2021/08/24 15:35 | Martin Katz v Deney Wassermann | 4-6,1-6 |
| ITF M15 Monastir | 2021/10/04 08:00 | Josef Southcombe v Taketo Takamisawa | 7-6,6-2 |
| ITF M15 Monastir | 2021/09/26 09:00 | Lohithaksha Bathrinath v Josef Southcombe | 7-5,0-6,10-8 |
| ITF M15 Monastir | 2021/09/21 08:00 | Ryotaro Matsumura v Josef Southcombe | 6-4,6-2 |
| ITF M15 Monastir | 2021/09/20 08:00 | Josef Southcombe v Rishabdev Raman | 4-6,6-4,10-8 |
| ITF M15 Heraklion | 2021/05/30 06:30 | Josef Southcombe v Ioannis Papounidis | 6-7,6-4,6-10 |
| ITF M25 Vale Do Lobo | 2021/03/08 10:00 | Ugo Blanchet v Josef Southcombe | 6-3,6-0 |
| ITF M25 Vale Do Lobo | 2021/03/07 10:30 | Josef Southcombe v Tom Paris | 2-6,6-0,10-6 |