Stadium: Center Court Round: 24 Ground: Clay
| ITF M15 Marburg | 2019/07/13 12:35 | Jesper De Jong v Ryan Nijboer | 6-3,6-3 |
| ITF M15 Marburg | 2019/07/12 11:40 | Mirko Martinez v Ryan Nijboer | 3-6,1-6 |
| ITF M15 Marburg | 2019/07/11 17:50 | Yannik Steinegger v Ryan Nijboer | 6-7,1-6 |
| ITF M15 Marburg | 2019/07/10 11:00 | Joao Lucas Reis da Silva v Ryan Nijboer | 2-6,7-5,3-6 |
| ITF M15 Den Haag | 2019/07/07 10:00 | Matias Zukas v Ryan Nijboer | 6-4,6-2 |
| ITF M15 Den Haag | 2019/07/05 10:55 | Yanais Laurent v Ryan Nijboer | 2-6,2-6 |
| ITF M15 Den Haag | 2019/07/04 11:25 | Daniel De Jonge v Ryan Nijboer | 3-6,0-6 |
| ITF M15 Den Haag | 2019/07/03 11:15 | Marc Dijkhuizen v Ryan Nijboer | 3-6,6-3,2-6 |
| Challenger Ludwigshafen | 2019/07/03 16:00 | Dustin Brown v Sebastian Fanselow | 6-3,6-2 |
| Challenger Ludwigshafen | 2019/07/01 11:50 | Alexey Vatutin v Sebastian Fanselow | 7-5,2-6,6-7 |
| Challenger Milan | 2019/06/27 14:00 | Aslan Karatsev v Sebastian Fanselow | 6-4,6-2 |
| Challenger Milan | 2019/06/26 13:30 | Sebastian Fanselow v Paolo Lorenzi | 6-4,7-5 |
| Challenger Milan | 2019/06/24 15:30 | Sebastian Fanselow v Christopher Heyman | 7-5,7-6 |
| Challenger Bratislava | 2019/06/19 08:00 | Sebastian Fanselow v Alexey Vatutin | 4-6,4-6 |
| Challenger Bratislava | 2019/06/17 09:20 | Sebastian Fanselow v Alex Molcan | 7-6,6-3 |
| Challenger Morelos | 2019/02/19 18:00 | Matias Franco Descotte v Sebastian Fanselow | 6-4,6-2 |