Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 Vyshkovo | 2021/09/20 06:00 | Razvan M Codescu v Mykhailo Mossur | 3-6,4-6 |
| ITF M15 Chornomorsk | 2021/08/30 07:00 | Mathieu Scaglia v Mykhailo Mossur | 6-4,6-2 |
| ITF M15 Chornomorsk | 2021/08/29 09:30 | Mykhailo Mossur v Danyil Chornous | 6-4,6-2 |
| ITF M15 Novomoskovsk | 2021/05/30 08:00 | Vladyslav Gorodynskyi v Mykhailo Mossur | 3-6,6-1,10-5 |
| ITF M25 Eupen | 2021/09/06 13:30 | Nico Hornitschek v Tom Gentzsch | 4-6,4-6 |
| ITF M25 Eupen | 2021/09/05 07:30 | Massimo Brambati v Nico Hornitschek | 2-6,0-6 |
| ITF M25 Ricany | 2021/08/29 08:00 | Philipp Pavlenko v Nico Hornitschek | 7-5,6-3 |
| ITF M25 Caslano | 2021/08/23 13:55 | Louroi Martinez v Nico Hornitschek | 6-2,6-2 |
| ITF M25 Prostejov | 2021/08/17 11:50 | Uladzimir Ignatik v Nico Hornitschek | 2-6,6-0,6-1 |
| ITF M25 Prostejov | 2021/08/16 09:50 | Nico Hornitschek v Ondrej Valek | 6-1,6-2 |
| ITF M25 Prostejov | 2021/08/15 08:00 | Reese Stalder v Nico Hornitschek | 4-6,2-6 |
| ITF M15 Heraklion | 2021/05/30 09:00 | Nico Hornitschek v Sean Hodkin | 1-6,2-6 |