Stadium: AFT Court Round: 54 Ground: Clay
| 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 07:30 | Yan Sabanin v Daniel De Jonge | 3-6,1-6 |
| ITF M15 Den Haag | 2019/07/02 07:30 | Daniel De Jonge v Tillmann Erdbories | 6-4,3-6,10-3 |
| ITF M15 Den Haag | 2019/07/01 09:30 | Daniel De Jonge v Quin Verstegen | 6-3,6-1 |
| ITF M25 Arlon | 2019/06/25 08:15 | Adelchi Virgili v Daniel De Jonge | 6-3,6-2 |
| ITF M25 Arlon | 2019/06/24 09:35 | Pedro Munafo v Daniel De Jonge | 2-6,3-6 |
| ITF M15 Troisdorf | 2019/05/09 11:20 | Daniel De Jonge v Constantin Schmitz | 3-6,1-6 |
| ITF M15 Troisdorf | 2019/05/07 12:45 | Thomas Fancutt v Daniel De Jonge | 5-7,4-6 |
| ITF Germany F16 | 2018/10/23 10:30 | Leopold Zima v Julian Onken | 4-6,6-3,6-2 |
| ITF Belgium F9 | 2018/08/21 12:30 | Julian Onken v Louis Herman | 4-6,6-3,2-6 |
| ITF Germany F9 | 2018/07/22 16:30 | Julian Onken v Maik Steiner | 2-6,6-2,4-6 |
| ITF Germany F9 | 2018/07/22 14:15 | Julian Onken v Arpit Sharma | 6-0,6-3 |
| ITF Croatia F1 | 2018/03/08 12:30 | Julian Onken v Tom Kocevar-Desman | 2-6,1-6 |
| ITF Croatia F1 | 2018/03/07 11:30 | Julian Onken v Flemming Peters | 6-4,7-5 |
| ITF Croatia F1 | 2018/03/07 08:00 | Julian Onken v Erwin Troebinger | 6-4,6-0 |
| ITF Pakistan F3 | 2017/12/21 06:20 | Julian Onken v Enrique Lopez-Perez | 2-6,4-6 |