Stadium: M (CC) Round: 25 Ground: Clay
| ITF M25 Troyes | 2019/07/23 15:00 | Nicolas Tepmahc v Niels Lootsma | 4-6,6-7 |
| Challenger - Amersfoort | 2019/07/15 11:10 | Aleksandre Metreveli v Niels Lootsma | 6-3,4-6,6-4 |
| ITF M15 Den Haag | 2019/07/03 07:30 | Niels Lootsma v Dax Donders | 6-1,6-1 |
| ITF - M15 Alkmaar | 2019/06/30 12:55 | Enrico Dalla Valle v Niels Lootsma | 7-6,6-4 |
| ITF - M15 Alkmaar | 2019/06/29 11:00 | Niels Lootsma v Matias Zukas | 4-6,6-4,7-5 |
| ITF - M15 Alkmaar | 2019/06/28 11:00 | Niels Lootsma v Colin Sinclair | 6-1,6-1 |
| ITF - M15 Alkmaar | 2019/06/27 10:00 | Niels Lootsma v Roland Stuurman | 6-4,6-2 |
| ITF - M15 Alkmaar | 2019/06/25 11:00 | Niels Lootsma v Yanais Laurent | 6-4,6-4 |
| ITF - M15 Eupen | 2019/08/06 08:00 | Zachary Eisinga v Shinnosuke Hiramatsu | 6-4,2-6,9-11 |
| ITF - M15 Eupen | 2019/08/05 09:00 | Lucas Hellfritsch v Zachary Eisinga | 7-6,6-7,4-10 |
| ITF - M15 Alkmaar | 2019/06/27 09:55 | Zachary Eisinga v Andrea Bolla | 6-7,3-6 |
| ITF - M15 Alkmaar | 2019/06/26 09:40 | Zachary Eisinga v Alex Martinez | 4-6,6-2,6-4 |
| ITF Netherlands F6 | 2018/08/29 14:50 | Zachary Eisinga v Colin Van Beem | 4-6,3-6 |
| ITF Netherlands F6 | 2018/08/27 10:00 | Oscar Moraing v Zachary Eisinga | 6-7,1-6 |
| ITF Netherlands F6 | 2018/08/26 08:00 | Zachary Eisinga v Sebastiano M Zorzi | 6-1,6-3 |
| ITF Netherlands F5 | 2018/08/18 08:00 | Thorsten Sollie v Zachary Eisinga | 4-6,6-4,4-6 |