stadio: Court 1 Round: 44 Ground: Carpet indoor
| ITF M15 Heraklion | 2019/12/04 10:35 | Ryan Nijboer v Simon Carr | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/11/23 08:00 | Lucas Hellfritsch v Ryan Nijboer | 6-2,6-3 |
| ITF M15 Sharm El Sheikh | 2019/11/22 08:00 | Ryan Nijboer v Zachary Eisinga | 6-3,3-6,7-5 |
| ITF M15 Sharm El Sheikh | 2019/11/21 08:00 | Ryan Nijboer v Mariano Alberto Hasenkopf | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2019/11/20 08:00 | Ryan Nijboer v Damien Wenger | 7-5,6-0 |
| ITF M15 Sharm El Sheikh | 2019/11/15 08:00 | Karim-Mohamed Maamoun v Ryan Nijboer | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2019/11/13 11:10 | Sagadat Ayap v Ryan Nijboer | 6-2,4-6,2-6 |
| ITF M25 Fort Worth | 2019/10/24 16:00 | Liam Broady v Ryan Nijboer | 6-2,2-6,6-2 |
| ITF M25 Nussloch | 2020/01/19 09:00 | Johann Lars v Robin Lang | 0-6,2-6 |
| ITF M15 Troisdorf | 2019/05/06 07:00 | Zakhar Trapeznikov v Robin Lang | 6-3,2-6,10-3 |
| ITF M25 Nussloch | 2019/01/23 10:00 | Robin Lang v Tim Van Rijthoven | 1-6,2-6 |
| ITF M25 Nussloch | 2019/01/21 16:10 | Kai Wehnelt v Robin Lang | 2-6,1-6 |
| ITF M25 Nussloch | 2019/01/21 10:50 | Robin Lang v Patrick Mayer | 5-7,7-5,10-7 |
| ITF Germania F13 | 2018/08/20 13:00 | Lucas Gerch v Robin Lang | 6-1,6-4 |
| ITF Germania F13 | 2018/08/19 08:00 | Niklas Albuszies v Robin Lang | 2-6,3-6 |
| ITF Francia F4 - Qual. | 2018/03/03 12:20 | Maxime Mora v Robin Lang | 6-4,7-5 |