Round: 25 Ground: Clay
| Challenger Prostejov Qual | 2017/06/04 09:50 | Constant Lestienne v Niels Lootsma | 6-7,6-3,6-3 |
| ITF Czech Republic F3 | 2017/06/01 08:30 | Jan Choinski v Niels Lootsma | 7-6,4-6,6-3 |
| ITF Czech Republic F3 | 2017/05/31 11:10 | Kern, Robin v Niels Lootsma | 6-7,3-6 |
| Czech Republic F2, Singles | 2017/05/24 09:00 | Haerteis, Johannes v Niels Lootsma | 6-3,6-1 |
| ITF France F10 | 2017/05/02 08:30 | Niels Lootsma v Zopp, Jurgen | 6-4,1-6,5-7 |
| ITF Italy F4 | 2017/03/16 14:00 | Niels Lootsma v Petr Michnev | 6-3,3-6,4-6 |
| ITF Italy F4 | 2017/03/13 16:20 | Niels Lootsma v Antonio Massara | 6-4,6-3 |
| Italie F3, Simples | 2017/03/07 10:00 | Niels Lootsma v Vand Der Duim, Antal | 6-3,4-6,6-7 |
| ITF Netherlands F1 Qual | 2017/06/19 08:00 | de Goeijen, Bobby v Sidane Pontjodikromo | 3-6,1-6 |
| ITF Netherlands F1 Qual | 2017/06/18 13:00 | Konings, Ruben v Sidane Pontjodikromo | 6-7,2-6 |
| ITF Netherlands F7 | 2016/08/29 15:30 | Sidane Pontjodikromo v van Der Linden, Lennert | 2-6,2-6 |
| ITF Netherlands F1 Qual | 2016/06/12 14:00 | Bonapart, Casper v Sidane Pontjodikromo | 6-2,7-5 |