Stadion: Court 3 Round: 54 Ground: Clay
| 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 |
| UTR Pro Tennis Series - Barcelona | 2021/08/10 10:00 | Jaume Pla Malfeito v Xavier Gabarro | 6-3,6-3 |
| ITF - M15 - Melilla | 2021/09/20 11:00 | Kirill Mishkin v Vitali Shvets | 7-5,6-2 |
| ITF - M25 - Madrid | 2021/09/13 10:00 | Michel Vernier v Kirill Mishkin | 6-3,6-1 |
| ITF - M25 - Madrid | 2021/09/12 17:00 | Vitali Shvets v Kirill Mishkin | 4-6,5-7 |
| ITF - M25 - Oviedo | 2021/08/29 09:45 | Kirill Mishkin v Rafael Mazon-Hernandez | 3-6,3-6 |
| ITF - M15 - Antalya | 2021/06/27 06:30 | Kirill Mishkin v Menelaos Efstathiou | 1-6,3-6 |
| ITF - M15 - Antalya | 2021/06/13 07:30 | Kirill Mishkin v Cheng-Yu Yu | 4-6,3-6 |
| ITF - M15 - Antalya | 2021/06/07 08:25 | Stefanos Sakellaridis v Kirill Mishkin | 6-2,6-2 |
| ITF - M15 - Antalya | 2021/06/06 07:30 | Sebastian Bahamondes v Kirill Mishkin | 1-6,2-6 |