Stadium: Court 6 Round: 62 Ground: Clay
| ITF M15 Skopje | 2021/06/07 09:00 | Max Houkes v Aloys J W Van Baal | 6-2,6-2 |
| ITF M15 Skopje | 2021/06/06 12:00 | Max Houkes v Simeon Terziev | 6-1,6-4 |
| ITF M15 Skopje | 2021/05/31 09:30 | Max Houkes v Rrezart Cungu | 6-7,3-6 |
| ITF M15 Majadahonda | 2021/05/05 09:25 | Max Houkes v Oriol Roca Batalla | 0-6,6-2,2-6 |
| ITF M15 Majadahonda | 2021/05/03 14:00 | Max Houkes v Diego A B Sanchez | 6-1,1-6,10-5 |
| ITF M15 Majadahonda | 2021/05/03 10:45 | Max Houkes v Marco De Rossi | 6-2,6-4 |
| ITF M15 Majadahonda | 2021/05/02 12:00 | Tiago Cacao v Max Houkes | 7-6,3-6,11-13 |
| ITF M25 Meerbusch | 2021/04/12 11:30 | Yvo Panak v Max Houkes | 3-6,7-5,10-8 |
| ITF M15 Skopje | 2021/06/07 11:30 | Fons Van Sambeek v Taiyo Yamanaka | 6-2,2-6,6-10 |
| ITF M15 Skopje | 2021/06/06 13:30 | Dmitrii Vasilev v Taiyo Yamanaka | 3-6,6-7 |
| ITF M15 Skopje | 2021/06/01 09:30 | Stefano Battaglino v Taiyo Yamanaka | 3-6,6-1,10-7 |
| ITF M15 Skopje | 2021/05/31 11:00 | Besir Durguti v Taiyo Yamanaka | 2-6,2-6 |
| ITF M15 Skopje | 2021/05/30 08:00 | Dax Donders v Taiyo Yamanaka | 4-6,4-6 |
| ITF M15 Bucharest | 2021/05/25 07:00 | Jaimee Floyd Angele v Taiyo Yamanaka | 6-1,6-4 |
| ITF M15 Bucharest | 2021/05/24 08:00 | Samuil Konov v Taiyo Yamanaka | 4-6,0-6 |
| ITF M15 Bucharest | 2021/05/23 10:00 | Kuzey Cekirge v Taiyo Yamanaka | 3-6,4-6 |