Stadium: Court 1 Round: 29 Ground: Hardcourt outdoor
| ITF - Quinta Do Lago M25 | 2021/10/23 11:05 | Naoki Nakagawa v Kaichi Uchida | 6-3,6-2 |
| ITF - Quinta Do Lago M25 | 2021/10/22 09:25 | Roberto Ortega-Olmedo v Naoki Nakagawa | 7-6,3-6,6-7 |
| ITF - Quinta Do Lago M25 | 2021/10/21 09:00 | Stuart Parker v Naoki Nakagawa | 1-6,6-7 |
| ITF - Quinta Do Lago M25 | 2021/10/19 12:50 | Naoki Nakagawa v Petros Chrysochos | 7-6,6-1 |
| ITF - Decatur M25 | 2021/08/02 15:00 | Naoki Nakagawa v Eliot Spizzirri | 6-7,1-6 |
| ITF - Champaign M25 | 2021/07/31 16:50 | Gijs Brouwer v Naoki Nakagawa | 6-1,4-6,6-1 |
| ITF - Champaign M25 | 2021/07/30 17:40 | Joshua Peck v Naoki Nakagawa | 3-6,1-6 |
| ITF - Champaign M25 | 2021/07/29 19:05 | Naoki Nakagawa v Yusuke Takahashi | 6-3,6-4 |
| ITF - Quinta Do Lago M25 | 2021/10/23 12:50 | Paul Jubb v Arthur Cazaux | 6-4,1-6,3-6 |
| ITF - Quinta Do Lago M25 | 2021/10/22 11:55 | Harry Wendelken v Arthur Cazaux | 6-7,4-6 |
| ITF - Quinta Do Lago M25 | 2021/10/21 09:00 | Laurent Lokoli v Arthur Cazaux | 1-6,6-7 |
| ITF - Quinta Do Lago M25 | 2021/10/20 12:35 | Tiago Cacao v Arthur Cazaux | 6-7,2-6 |
| ITF - Loule M25 | 2021/10/15 11:50 | Pedro Araujo v Arthur Cazaux | 6-1,6-4 |
| ITF - Loule M25 | 2021/10/14 09:30 | Elliot Benchetrit v Arthur Cazaux | 6-0,6-7,0-6 |
| ITF - Loule M25 | 2021/10/13 09:30 | Amaury Raynel v Arthur Cazaux | 2-6,1-6 |
| ITF - Setubal M25 | 2021/10/10 09:55 | Arthur Cazaux v Rinky Hijikata | 7-5,6-0 |