| ITF M15 Melilla | 2021/09/21 08:00 | Xavier Gabarro v Kirill Mishkin | 3-6,2-6 |
| ITF M15 Melilla | 2021/09/20 14:30 | Xavier Gabarro v Jesus Martinez Garcia | 6-1,6-1 |
| ITF M25 Madrid | 2021/09/15 06:45 | Valentin Lapalu v Xavier Gabarro | 6-3,6-4 |
| ITF M25 Madrid | 2021/09/14 06:55 | Emilien Voisin v Xavier Gabarro | 3-6,7-6,9-11 |
| ITF M25 Madrid | 2021/09/13 08:00 | Ervin H Eminefendic v Xavier Gabarro | 3-6,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/15 06:30 | Xavier Gabarro v Alejandro Mendoza | 2-6,2-4 |
| UTR Pro Tennis Series Barcelona | 2021/08/13 06:30 | Xavier Gabarro v Olexiy Kolisnyk | 3-6,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/08/11 07:00 | Markos Kalovelonis v Xavier Gabarro | 6-3,6-0 |
| Challenger Kyiv | 2021/09/07 07:00 | Filip Cristian Jianu v Richard Zusman | 6-4,6-1 |
| ITF M15 Chornomorsk | 2021/08/31 08:45 | Richard Zusman v Dostanbek Tashbulatov | 6-7,5-7 |
| ITF M25 Koksijde | 2021/08/15 13:30 | Richard Zusman v Max Cunat | 6-7,2-6 |
| ITF M15 Valldoreix | 2021/05/12 09:50 | Rayane Roumane v Richard Zusman | 3-6,6-3,6-3 |
| ITF M25 Reus | 2021/04/11 07:00 | Emilio Nava v Richard Zusman | 6-4,7-6 |
| ITF M15 Antalya | 2021/03/28 06:30 | Alexander Ovcharov v Richard Zusman | 6-3,6-3 |
| ITF M15 Antalya | 2021/03/21 07:00 | Ivan Denisov v Richard Zusman | 7-5,6-4 |
| ITF M15 Antalya | 2021/03/16 09:30 | Richard Zusman v Peter Fajta | 5-7,5-7 |