Stadium: Court 1 Kvarner Round: 25 Ground: Clay
| ITF M15 Opatija | 2021/03/23 09:00 | Matic Spec v Domagoj Biljesko | 7-5,6-2 |
| ITF M15 Opatija | 2021/03/22 11:55 | Matic Spec v Lucas Bouquet | 6-1,6-1 |
| ITF M15 Opatija | 2021/03/21 11:00 | Matic Spec v Federico Marchetti | 7-5,6-0 |
| ITF M15 Rovinj | 2021/03/14 08:30 | Matic Spec v Duje Kekez | 3-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/03 13:50 | Roman Andres Burruchaga v Matic Spec | 6-2,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/02 07:30 | Matic Spec v Francesco Passaro | 6-7,6-3,11-9 |
| ITF M15 Sharm El Sheikh | 2021/03/01 13:00 | Matic Spec v Noel Larwig | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2021/02/28 17:00 | Matic Spec v Danyil Chornous | 6-1,6-0 |
| ITF M15 Rovinj | 2021/03/19 09:25 | Corentin Denolly v Pavel Nejedly | 3-6,6-4,6-3 |
| ITF M15 Rovinj | 2021/03/18 09:00 | Pavel Nejedly v Antoine Cornut-Chauvinc | 7-6,6-3 |
| ITF M15 Rovinj | 2021/03/16 13:00 | Dino Prizmic v Pavel Nejedly | 4-6,4-6 |
| ITF M15 Porec | 2021/03/12 09:00 | Filip Misolic v Pavel Nejedly | 6-4,6-4 |
| ITF M15 Porec | 2021/03/11 09:00 | Clement Tabur v Pavel Nejedly | 7-5,3-6,5-7 |
| ITF M15 Porec | 2021/03/10 10:20 | Admir Kalender v Pavel Nejedly | 2-6,1-6 |
| Challenger Gran Canaria Qual | 2021/02/28 16:35 | Alex M Pujolras v Pavel Nejedly | 6-3,1-6,6-3 |
| Challenger Gran Canaria | 2021/02/21 13:55 | Manuel Guinard v Pavel Nejedly | 6-3,6-3 |