Stadium: Indoor 2 Round: 27 Ground: Clay
| ITF M25 Doboj MD | 2019/05/14 13:05 | Stojanovic/Zhu v Ejupovic/Strombachs | 4-6,3-6 |
| ITF M25 Doboj MD | 2019/05/14 14:45 | Katic/Pjeranovic v Sijsling/Van De Zandschulp | 1-6,1-6 |
| ITF M25 Prijedor MD | 2019/05/11 14:15 | Sijsling/Van De Zandschulp v Celebic/Fatic | 3-6,6-3,10-4 |
| ITF M25 Prijedor MD | 2019/05/11 12:35 | Sabanov/Sabanov v Sijsling/Van De Zandschulp | 6-3,1-6,3-10 |
| ITF M25 Prijedor MD | 2019/05/09 13:15 | Sijsling/Van De Zandschulp v Ilic/Milenkovic | 6-4,7-5 |
| ITF M25 Prijedor MD | 2019/05/08 13:30 | Sijsling/Van De Zandschulp v Merino/Pena Lopez | 6-2,7-6 |
| ITF M15 - Sharm El Sheikh - Herredouble | 2019/03/23 09:30 | Dev/Kalyanpur v Sijsling/Van De Zandschulp | 6-7,6-2,6-10 |
| ITF M15 - Sharm El Sheikh - Herredouble | 2019/03/22 10:40 | Goveas/Samaha v Sijsling/Van De Zandschulp | 6-2,4-6,7-10 |
| ITF M15 - Sharm El Sheikh - Herredouble | 2019/03/21 12:35 | Fortuna/Maiga v Sijsling/Van De Zandschulp | 6-4,2-6,4-10 |