Stadium: Court 6 Round: 26 Ground: Clay
| ITF M15 Villena | 2024/02/25 14:30 | Iannis Miletich v Aaron Gil Garcia | 2-6,3-6 |
| ITF M15 Villena | 2024/02/18 12:00 | Michiel de Krom v Iannis Miletich | 6-1,6-1 |
| ITF M15 Madrid | 2023/12/06 11:15 | Iannis Miletich v Tao Mu | 2-6,2-6 |
| ITF M25 Madrid | 2023/12/05 08:00 | Iannis Miletich v Alex Finkelstein | 6-2,6-0 |
| ITF M25 Madrid | 2023/12/04 09:00 | Andrea Gola v Iannis Miletich | 6-4,3-6,8-10 |
| ITF M25 Madrid | 2023/12/03 09:00 | Iannis Miletich v Asier Civera Martinez | 6-2,7-5 |
| ITF M15 Valencia | 2023/11/12 08:00 | Andrea Bolla v Iannis Miletich | 7-5,6-2 |
| ITF M25 Benicarlo | 2023/11/07 10:40 | Carlos Gimeno Valero v Iannis Miletich | 6-3,6-1 |
| ITF M25 Trento | 2024/02/20 10:30 | Andrea Guerrieri v Kai Lemstra | 6-1,7-5 |
| ITF M15 Oberhaching | 2024/02/13 10:00 | Tommaso Compagnucci v Kai Lemstra | 6-3,6-4 |
| ITF M25 Nussloch | 2024/01/24 15:15 | Kai Lemstra v Kirill Kivattsev | 1-6,6-7 |
| ITF M15 Cadolzburg | 2024/01/17 09:55 | Kai Lemstra v Vincent Marysko | 6-7,4-6 |
| German Championship | 2023/12/08 14:10 | Kai Lemstra v Max Hans Rehberg | 3-6,4-6 |
| German Championship | 2023/12/07 13:00 | Kai Lemstra v Edison Ambarzumjan | 6-3,6-1 |
| German Championship | 2023/12/06 12:20 | Kai Lemstra v Noel Larwig | 6-2,6-4 |
| ITF M15 Heraklion | 2023/11/24 08:00 | Alastair Gray v Kai Lemstra | 6-3,7-5 |