Stadium: Court 6 Round: 26 Ground: Hardcourt indoor
| ITF M15 Heraklion | 2020/11/08 07:30 | Matic Spec v Jakub Paul | 6-2,6-1 |
| ITF M15 St Petersburg | 2021/04/13 07:00 | Jakub Paul v Simon Freund | 7-6,6-0 |
| ITF M15 St Petersburg | 2021/04/06 07:00 | Jakub Paul v Artem Dubrivnyy | 5-7,1-6 |
| ITF M25 Biel | 2021/03/30 10:00 | Mick Veldheer v Jakub Paul | 6-2,4-6,10-6 |
| ITF M25 Biel | 2021/03/29 13:35 | Milan Welte v Jakub Paul | 4-6,1-6 |
| ITF M25 Trimbach | 2021/03/12 08:55 | Jakub Paul v Matteo Martineau | 6-7,7-6,3-6 |
| ITF M25 Trimbach | 2021/03/11 09:00 | Arthur Reymond v Jakub Paul | 6-4,4-6,3-6 |
| ITF M25 Trimbach | 2021/03/10 10:30 | Jakub Paul v Arthur Bouquier | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2021/03/05 07:30 | Jakub Paul v Nick Hardt | 3-6,3-6 |
| ITF M15 St Petersburg | 2021/04/14 09:15 | Matic Spec v Alafia Ayeni | 6-3,6-4 |
| ITF M15 St Petersburg | 2021/04/12 10:15 | Matic Spec v Daniel Ibragimov | 6-1,6-1 |
| ITF M15 St Petersburg Qual | 2021/04/11 07:00 | Matic Spec v Maksim Starostin | 6-3,6-2 |
| ITF M15 St Petersburg | 2021/04/08 09:00 | Matic Spec v Aristarkh Safonov | 3-6,5-7 |
| ITF M15 St Petersburg | 2021/04/07 07:00 | Savriyan Danilov v Matic Spec | 3-6,2-6 |
| ITF M15 St Petersburg | 2021/04/05 08:40 | Constantin Bittoun Kouzmine v Matic Spec | 6-7,6-7 |
| ITF M15 St Petersburg | 2021/04/04 09:05 | Semen Voronin v Matic Spec | 4-6,3-6 |
| ITF M15 Opatija | 2021/03/24 12:45 | Matic Spec v Pavel Nejedly | 6-1,5-7,3-6 |