Stadium: Court 5 Round: 28 Ground: Hardcourt outdoor
| ITF M15 Champaign | 2021/06/25 17:00 | Gabriel Diallo v Khololwam Montsi | 7-5,6-3 |
| ITF M15 Champaign | 2021/06/24 17:25 | Khololwam Montsi v Ezekiel Clark | 4-6,6-4,6-1 |
| ITF M15 Champaign | 2021/06/23 18:45 | Khololwam Montsi v Ben Shelton | 6-4,4-6,7-5 |
| ITF M15 Jerusalem | 2021/05/11 06:30 | Khololwam Montsi v Julian Cash | 5-7,6-4,5-7 |
| ITF M15 Ramat Hasharon | 2021/05/05 07:00 | Khololwam Montsi v Ben Patael | 4-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/03/10 07:30 | Edoardo Eremin v Khololwam Montsi | 6-3,4-6,6-4 |
| ITF M15 Sharm El Sheikh | 2021/03/03 13:00 | Jakub Paul v Khololwam Montsi | 6-1,7-6 |
| Challenger Potchefstroom | 2021/02/18 08:00 | Adrian Menendez-Maceiras v Khololwam Montsi | 6-3,6-0 |
| ITF M25 Bakio | 2021/07/01 10:30 | Rio Noguchi v Kaichi Uchida | 3-6,1-6 |
| ITF M25 Bakio | 2021/06/30 09:15 | Emilio Nava v Rio Noguchi | 7-6,3-6,6-7 |
| ITF M15 Champaign | 2021/06/23 15:00 | Christian Langmo v Rio Noguchi | 7-6,6-4 |
| ITF M25 Tulsa | 2021/06/16 23:50 | Hiroki Moriya v Rio Noguchi | 7-6,4-6,6-4 |
| ITF M25 Wichita | 2021/06/09 15:00 | Rio Noguchi v Govind Nanda | 6-3,4-6,3-6 |
| ITF M15 Antalya | 2021/05/11 09:00 | Rio Noguchi v Nick Hardt | 1-6,2-6 |
| ITF M15 Antalya | 2021/05/06 09:50 | Orlando Luz v Rio Noguchi | 6-4,6-3 |
| ITF M15 Antalya | 2021/05/04 09:50 | Mircea-Alexandru Jecan v Rio Noguchi | 2-6,2-6 |