Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Girona | 2021/10/20 08:00 | Lilian Marmousez v Max Alcala Gurri | 2-6,3-6 |
| ITF M15 Monastir | 2021/09/29 08:00 | Ugo Blanchet v Lilian Marmousez | 6-3,7-5 |
| ITF M15 Monastir | 2021/09/24 07:55 | Lilian Marmousez v Ryota Tanuma | 4-6,6-7 |
| ITF M15 Monastir | 2021/09/23 08:00 | Lilian Marmousez v Takashi Saito | 6-1,6-3 |
| ITF M15 Monastir | 2021/09/22 08:00 | Lilian Marmousez v Daniil Glinka | 7-6,6-2 |
| ITF M15 Monastir | 2021/09/16 11:15 | Lilian Marmousez v Axel Garcian | 5-7,1-6 |
| ITF M15 Monastir | 2021/09/15 09:40 | Lilian Marmousez v Taisei Ichikawa | 4-6,6-4,6-1 |
| ITF M25 Montauban | 2021/06/23 10:05 | Antoine Escoffier v Lilian Marmousez | 7-6,7-5 |
| Davis Cup | 2021/09/19 08:45 | Alexandros Skorilas v Vilius Gaubas | 6-4,6-4 |
| ITF M15 Parnu | 2021/08/04 10:15 | Mattias Siimar v Vilius Gaubas | 4-6,6-1,7-5 |
| ITF M15 Castelo Branco | 2021/07/27 08:30 | Vilius Gaubas v Gilbert S K Junior | 4-6,3-6 |