Stadium: Court 3 Round: 54 Ground: Clay
| ITF M25 Angers | 2021/04/18 11:00 | Simon Reveniau v Boris Fassbender | 6-4,4-6,10-6 |
| ITF M15 Poitiers | 2021/03/14 13:20 | Hugo Voljacques v Boris Fassbender | 7-6,7-5 |
| ITF M15 Grenoble | 2021/02/07 08:30 | Pierre Delage v Boris Fassbender | 6-4,6-2 |
| ITF M15 Sarreguemines | 2020/10/25 12:30 | Dominik Boehler v Boris Fassbender | 3-6,6-4,10-4 |
| ITF M15 Forbach | 2020/09/29 11:00 | Boris Fassbender v Michael Geerts | 3-6,3-6 |
| ITF M25 Plaisir | 2020/09/16 11:00 | Igor Sijsling v Boris Fassbender | 6-1,6-3 |
| ITF M25 Plaisir | 2020/09/14 15:45 | Samuel Brosset v Boris Fassbender | 6-7,4-6 |
| ITF M25 Plaisir | 2020/09/14 11:10 | Boris Fassbender v Alexis Canter | 6-3,6-1 |
| ITF M15 Lodz | 2021/08/15 08:00 | Svyatoslav Ilnytskyy v Mikolaj Borkowski | 4-6,6-3,5-10 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Svyatoslav Ilnytskyy v Antonin Bolardt | 4-6,5-7 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Svyatoslav Ilnytskyy v Bartlomiej Andrzejczak | 6-2,6-0 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/04 15:00 | Svyatoslav Ilnytskyy v Maks Kasnikowski | 2-6,3-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 14:25 | Svyatoslav Ilnytskyy v Tomas Lanik | 6-3,6-0 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 08:00 | Adam Bronka v Svyatoslav Ilnytskyy | 5-7,0-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 11:30 | Dario Drebenstedt v Svyatoslav Ilnytskyy | 5-7,4-6 |
| ITF M25 Wroclaw | 2021/06/27 09:30 | Edouard Villoslada v Svyatoslav Ilnytskyy | 6-7,6-3,10-6 |