Stadium: Court 4 Round: 27 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/09/22 08:00 | Guy Den Ouden v Tanuma, Ryota | 6-7,2-6 |
| ITF - M15 Monastir | 2021/09/30 08:00 | Tanuma, Ryota v Vasiliauskas, Matas | 6-3,6-2 |
| ITF - M15 Monastir | 2021/09/29 08:00 | Tanuma, Ryota v Daniil Glinka | 6-4,6-3 |
| ITF - M15 Monastir | 2021/09/26 08:30 | Li Tu v Tanuma, Ryota | 3-6,6-1,6-2 |
| ITF - M15 Monastir | 2021/09/25 08:30 | Omar Brigida v Tanuma, Ryota | 3-6,4-6 |
| ITF - M15 Monastir | 2021/09/24 07:55 | Lilian Marmousez v Tanuma, Ryota | 4-6,6-7 |
| ITF - M15 Monastir | 2021/09/23 13:00 | Axel Garcian v Tanuma, Ryota | 3-6,0-6 |
| ITF - M15 Monastir | 2021/09/22 08:00 | Guy Den Ouden v Tanuma, Ryota | 6-7,2-6 |
| ITF - M15 Monastir | 2021/09/18 08:30 | Gabriel Decamps v Tanuma, Ryota | 7-6,6-3 |
| ITF - M15 Monastir | 2021/09/30 08:00 | Guy Den Ouden v Lukas Neumayer | 7-6,6-3 |
| ITF - M15 Monastir | 2021/09/29 10:45 | Guy Den Ouden v Aissa Khelifa, Mohamed Amine | 6-0,6-3 |
| ITF - M15 Monastir | 2021/09/22 08:00 | Guy Den Ouden v Tanuma, Ryota | 6-7,2-6 |
| ITF M15 Allershausen | 2021/09/05 11:00 | Guy Den Ouden v Veldheer, Mick | 6-0,6-4 |
| ITF M15 Allershausen | 2021/09/04 13:10 | Guy Den Ouden v Mats Rosenkranz | 6-4,4-6,6-4 |
| ITF M15 Allershausen | 2021/09/03 12:35 | Guy Den Ouden v Galarza, Juan Ignacio | 7-5,6-3 |
| ITF M15 Allershausen | 2021/09/02 13:40 | Peter Heller v Guy Den Ouden | 6-7,3-6 |
| ITF M15 Allershausen | 2021/09/01 11:30 | Guy Den Ouden v Hazem Naw | 6-4,3-6,6-4 |