Stadium: Court 6 Round: 25 Ground: Clay
| ITF M15 Sibenik | 2021/04/19 09:15 | Domagoj Biljesko v Luka Mikrut | 6-4,7-5 |
| ITF M15 Sibenik | 2021/04/18 10:00 | Nikola Basic v Luka Mikrut | 4-6,6-4,6-10 |
| Challenger Split | 2021/04/04 09:00 | Tung-Lin Wu v Luka Mikrut | 6-2,6-1 |
| Challenger Zadar | 2021/03/21 09:30 | Uladzimir Ignatik v Luka Mikrut | 7-5,6-0 |
| ITF M15 Rovinj | 2021/03/15 08:30 | Luka Mikrut v Maxime Mora | 2-6,3-6 |
| ITF M15 Porec | 2021/03/07 13:00 | Luka Mikrut v Nikola Basic | 5-7,2-6 |
| Adriatic Tennis Series | 2020/06/15 08:00 | Luka Mikrut v Stjepan Anisic | 6-0,6-2 |
| ITF M15 Prijedor | 2021/05/14 08:50 | Denis Yevseyev v Peter Fajta | 1-6,6-1,6-2 |
| ITF M15 Prijedor | 2021/05/13 10:05 | Peter Fajta v Marko Miladinovic | 5-7,6-3,7-6 |
| ITF M15 Antalya | 2021/04/21 10:00 | Peter Fajta v Federico Arnaboldi | 3-6,4-6 |
| ITF M15 Antalya | 2021/04/13 07:00 | Sandro Kopp v Peter Fajta | 6-2,7-6 |
| ITF M15 Antalya | 2021/04/06 13:10 | Davide Galoppini v Peter Fajta | 7-5,7-5 |
| ITF M15 Antalya | 2021/03/26 07:00 | Sanjar Fayziev v Peter Fajta | 2-6,7-6,6-0 |
| ITF M15 Antalya | 2021/03/18 07:00 | Peter Fajta v Peter Heller | 3-6,0-6 |
| ITF M15 Antalya | 2021/03/16 09:30 | Richard Zusman v Peter Fajta | 5-7,5-7 |