Stadium: Court 20 Round: 26 Ground: Clay
| ITF - M15 Antalya | 2021/06/16 13:15 | Zsombor Piros v Zukas, Matias | 3-6,1-6 |
| ITF - M15 Antalya | 2021/06/09 06:50 | Zukas, Matias v Pawel Juszczak | 6-7,6-7 |
| ITF M15 Novomoskovsk | 2021/06/06 07:00 | Kalenichenko, Danylo v Zukas, Matias | 4-6,6-0,4-6 |
| ITF M15 Novomoskovsk | 2021/06/05 07:30 | Illya Beloborodko v Zukas, Matias | 5-7,4-6 |
| ITF M15 Novomoskovsk | 2021/06/04 07:00 | Zukas, Matias v Oleksandr Ovcharenko | 6-3,6-1 |
| ITF M15 Novomoskovsk | 2021/06/03 17:50 | Zukas, Matias v Marco Miceli | 4-6,6-3,10-2 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/05/19 10:30 | Zukas, Matias v Nikita Mashtakov | 2-6,3-6 |
| ITF M15 Cordoba | 2021/04/07 16:30 | Zukas, Matias v Franco Roncadelli | 6-3,7-5 |
| ITF - M15 Antalya | 2021/06/16 14:55 | Pietro Marino v Battaglino, Stefano | 2-6,7-5,6-4 |
| ITF - M15 Antalya | 2021/06/15 09:45 | Dian Nedev v Pietro Marino | 2-6,6-7 |
| ITF - M15 Antalya | 2021/06/14 13:30 | Pietro Marino v Yu, Cheng-Yu | 6-2,6-4 |
| ITF - M15 Antalya | 2021/06/13 07:30 | Pietro Marino v Dmitrii Vasilev | 6-1,6-1 |
| ITF M15 Gaiba | 2021/06/07 17:00 | Pietro Marino v Ragazzi, Alessandro | 2-6,4-6 |
| ITF - M15 Antalya | 2021/03/07 07:00 | Makk, Peter v Pietro Marino | 7-5,6-3 |
| ITF - M15 Antalya | 2021/03/01 10:00 | Pietro Marino v Taiyo Yamanaka | 2-6,2-6 |
| ITF - M15 Monastir | 2021/02/14 08:30 | Kenneth Raisma v Pietro Marino | 2-6,6-2,10-5 |