Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/09/21 08:00 | Giovanni Oradini v Matas Vasiliauskas | 7-5,6-3 |
| ITF M15 Monastir | 2021/09/20 09:00 | Preston Connor v Matas Vasiliauskas | 3-6,2-6 |
| ITF M15 Monastir | 2021/09/19 12:00 | Jabari Stafford v Matas Vasiliauskas | 2-6,5-7 |
| ITF M15 Monastir | 2021/09/14 09:00 | Michael Zhu v Matas Vasiliauskas | 7-5,6-2 |
| ITF M15 Monastir | 2021/09/07 08:00 | Matas Vasiliauskas v Michael Zhu | 2-6,4-6 |
| ITF M15 Monastir | 2021/09/06 09:30 | Michel-Alexandre Fortin v Matas Vasiliauskas | 1-6,3-6 |
| ITF M15 Monastir | 2021/09/05 08:00 | Lorenzo Claverie v Matas Vasiliauskas | 5-7,4-6 |
| ITF M15 Monastir | 2021/08/29 09:00 | Matas Vasiliauskas v Rishi Reddy | 1-6,6-7 |
| ITF M15 Monastir | 2021/09/22 08:00 | Guy Den Ouden v Ryota Tanuma | 6-7,2-6 |
| ITF M15 Allershausen | 2021/09/05 11:00 | Guy Den Ouden v Mick Veldheer | 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 Juan Ignacio Galarza | 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 |
| ITF M15 Huy | 2021/08/29 13:00 | Gauthier Onclin v Guy Den Ouden | 6-4,5-7,1-6 |
| ITF M15 Huy | 2021/08/28 11:00 | Raphael Collignon v Guy Den Ouden | 3-6,4-6 |