Stadium: Court 2 Round: 19 Ground: Clay
| Challenger Tulln | 2021/09/05 12:25 | Uladzimir Ignatik v David Pichler | 6-2,6-3 |
| ITF M25 Ricany | 2021/09/02 08:00 | Uladzimir Ignatik v Mateus Alves | 2-6,6-4,4-6 |
| ITF M25 Ricany | 2021/09/01 10:15 | Uladzimir Ignatik v Antonin Stepanek | 6-2,6-1 |
| Challenger Prague | 2021/08/25 10:05 | Uladzimir Ignatik v Ryan Peniston | 2-6,6-2,3-6 |
| Challenger Prague | 2021/08/24 08:30 | Zsombor Piros v Uladzimir Ignatik | 4-6,3-6 |
| Challenger Prague | 2021/08/23 08:00 | Uladzimir Ignatik v Elmar Ejupovic | 7-6,2-6,6-4 |
| Challenger Prague | 2021/08/22 12:15 | Uladzimir Ignatik v Jose Fco. Vidal Azorin | 6-0,6-3 |
| ITF M25 Prostejov | 2021/08/18 08:00 | Uladzimir Ignatik v Toby Alex Kodat | 6-4,5-7,1-6 |
| Challenger Tulln | 2021/09/05 13:00 | Rafael Matos v Tobias Simon | 6-7,2-6 |
| ITF M25 Caslano | 2021/08/26 14:30 | Giovanni Oradini v Tobias Simon | 4-6,6-4,3-6 |
| ITF M25 Caslano | 2021/08/25 13:10 | Stefano Baldoni v Tobias Simon | 6-7,1-6 |
| ITF M25 Frankfurt am Main | 2021/08/10 13:55 | Tobias Simon v Christian Sigsgaard | 3-6,3-6 |
| ITF M25 Bakio | 2021/06/29 13:00 | Pablo Llamas Ruiz v Tobias Simon | 7-5,6-2 |
| ITF M25 Klosters | 2021/06/24 08:35 | Dominic Stephan Stricker v Tobias Simon | 7-6,6-7,6-3 |
| ITF M25 Klosters | 2021/06/23 12:00 | Tomas Papik v Tobias Simon | 3-6,4-6 |
| Challenger Forli | 2021/06/14 09:30 | Thiago Agustin Tirante v Tobias Simon | 7-6,6-3 |