Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/06/13 11:30 | Seth Seely v Guilherme Sousa Severin | 1-6,1-6 |
| ITF M15 Monastir | 2021/06/08 11:00 | Guilherme Sousa Severin v Thomas Fancutt | 6-2,4-6,4-6 |
| ITF M15 Quinta Do Lago | 2020/11/02 10:00 | Guilherme Sousa Severin v Terence Das | 1-6,0-6 |
| ITF M25 Vale Do Lobo | 2020/10/25 14:00 | Joao Lucas Reis da Silva v Guilherme Sousa Severin | 6-4,5-7,10-8 |
| ITF M15 Loule | 2020/03/08 10:00 | Guilherme Sousa Severin v Marvin Moeller | 0-6,0-6 |
| ITF M15 Faro | 2020/03/01 11:30 | Andre Rodeia v Guilherme Sousa Severin | 6-3,6-0 |
| ITF M15 Vale Do Lobo | 2020/02/24 10:30 | Miguel Damas v Guilherme Sousa Severin | 7-5,6-2 |
| ITF Portugal F3 Qual | 2017/03/11 13:00 | Jose Von Hafe Perez v Guilherme Sousa Severin | 6-2,6-0 |
| ITF M15 Monastir | 2021/06/13 11:30 | Imran Sibille v Kazuma Kawachi | 2-6,1-6 |
| ITF M15 Monastir | 2021/06/07 13:30 | Kazuma Kawachi v Devin Badenhorst | 3-6,5-7 |
| ITF M15 Monastir | 2021/06/07 09:00 | Kazuma Kawachi v Raphael Lambling | 6-3,6-4 |
| ITF M15 Monastir | 2021/06/06 15:00 | Kazuma Kawachi v Samuel A O Antwi | 6-2,6-2 |
| ITF M15 Monastir | 2021/03/22 15:00 | Kazuma Kawachi v Olivier Rojas | 2-6,2-6 |
| ITF M15 Monastir | 2021/03/22 10:00 | Kazuma Kawachi v John Sperle | 6-4,7-5 |
| ITF M15 Monastir | 2021/03/21 17:00 | Kazuma Kawachi v Ammar Elamin | 6-4,4-6,10-7 |
| ITF M15 Monastir | 2021/03/15 08:00 | Hazem Naw v Kazuma Kawachi | 1-6,7-5,10-8 |