Stadium: Court 5 Round: 62 Ground: Clay
| ITF M15 Novi Sad | 2023/07/23 07:00 | Daniil Ostapenkov v Dusan Milanovic | 3-6,2-6 |
| ITF M15 Tianjin | 2023/07/08 01:30 | Zhe Li v Daniil Ostapenkov | 6-3,6-4 |
| ITF M15 Tianjin | 2023/07/07 01:30 | Daniil Ostapenkov v Chukang Wang | 6-7,6-4,6-4 |
| ITF M15 Tianjin | 2023/07/06 01:30 | Aliaksandr Liaonenka v Daniil Ostapenkov | 1-6,2-6 |
| ITF M15 Tianjin | 2023/07/04 07:35 | Ye Cong Mo v Daniil Ostapenkov | 2-6,4-6 |
| ITF M15 Tbilisi | 2023/05/02 08:20 | Blake Ellis v Daniil Ostapenkov | 6-4,7-6 |
| ITF M25 Tbilisi | 2023/05/01 06:00 | Daniil Ostapenkov v Berk Ilkel | 7-5,6-7,10-3 |
| ITF M25 Tbilisi | 2023/04/26 07:30 | Daniil Ostapenkov v Ron Ellouck | 2-6,4-6 |
| ITF M25 Bacau | 2023/07/23 08:30 | Leon Formella v Louis Allen | 2-6,4-6 |
| ITF M15 Uslar | 2023/07/17 09:00 | Leon Formella v Jeremy Schifris | 1-6,1-6 |
| ITF M25 Grasse | 2023/06/12 07:30 | Pablo Trochu v Leon Formella | 6-1,6-0 |
| ITF M25 Grasse | 2023/06/11 10:25 | Leon Formella v Laurent Julia Calac | 6-3,7-5 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 09:00 | Leon Formella v Jiri Jenicek | 2-6,3-6 |
| ITF M25 Most | 2023/05/22 08:00 | Michael Agwi v Leon Formella | 6-2,6-0 |
| ITF M25 Most | 2023/05/21 08:00 | Leon Formella v Artem Mazur | 6-3,6-2 |
| ITF M15 Krsko | 2023/05/15 12:30 | Federico Campana v Leon Formella | 6-2,6-0 |