Stadium: Court 1 (Center) Round: 29 Ground: Clay
| ITF Belgium F7 | 2018/08/07 10:35 | Ryan Nijboer v Zukas, Matias | 3-6,1-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/06 12:10 | Igor Sijsling v Zukas, Matias | 6-7,6-1,3-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/05 09:00 | Zukas, Matias v Michiel de Krom | 6-3,6-1 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/04 13:10 | Karl Friberg v Zukas, Matias | 1-6,1-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/03 08:55 | Zukas, Matias v Max Houkes | 7-5,6-1 |
| ITF M15 Alkmaar | 2019/06/29 11:00 | Niels Lootsma v Zukas, Matias | 4-6,6-4,7-5 |
| ITF M15 Alkmaar | 2019/06/27 10:00 | Zukas, Matias v Guy Den Heijer | 6-2,6-1 |
| ITF M15 Alkmaar | 2019/06/26 08:00 | Zukas, Matias v Matheus P De Almeida | 6-1,6-4 |
| ITF - M25 Toulouse | 2019/06/18 08:30 | Zukas, Matias v Maxime Chazal | 4-6,0-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/05 10:55 | Yanais Laurent v Ryan Nijboer | 2-6,2-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/04 11:25 | Daniel De Jonge v Ryan Nijboer | 3-6,0-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/03 11:15 | Dijkhuizen, Marc v Ryan Nijboer | 3-6,6-3,2-6 |
| ITF M15 Alkmaar | 2019/06/26 13:25 | Andrea Bolla v Ryan Nijboer | 6-7,7-5,6-3 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/20 08:00 | Ryan Nijboer v Georgii Kravchenko | 7-5,4-6,3-6 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/19 09:50 | Ryan Nijboer v Naoki Tajima | 6-3,6-2 |
| ITF - M25 Sunderland | 2019/04/09 10:25 | Zizou Bergs v Ryan Nijboer | 6-2,4-6,6-1 |
| Bolton, Qualifications Simples M-ITF-GBR-03A | 2019/04/04 09:00 | Ryan Nijboer v Lenz, Julian | 3-6,6-7 |