Stadium: Court 7 Round: 26 Ground: Hardcourt outdoor
| ITF Tunisia F38 | 2018/11/02 12:25 | Daniel De Jonge v Ronan Joncour | 1-6,4-6 |
| ITF Tunisia F38 | 2018/11/01 09:00 | Daniel De Jonge v Jeremy Sonkin | 6-1,6-3 |
| ITF Tunisia F38 | 2018/10/31 10:15 | Luca Prevosto v Daniel De Jonge | 4-6,6-4,6-7 |
| ITF Tunisia F38 | 2018/10/29 08:30 | Daniel De Jonge v Lukas H Lilleengen | 6-7,3-6 |
| ITF Tunisia F38 | 2018/10/28 08:30 | Maurizio Speziali v Daniel De Jonge | 5-7,1-6 |
| ITF Tunisia F38 | 2018/10/27 09:00 | Daniel De Jonge v Mathis Moysan | 6-2,7-5 |
| ITF Belgium F10 | 2018/08/27 10:00 | Juan Bautista Otegui v Daniel De Jonge | 6-3,5-7,6-4 |
| ITF Belgium F10 Qual | 2018/08/26 12:00 | Daniel De Jonge v Felix Romeo | 6-0,6-3 |
| Challenger Da Nang | 2019/01/06 11:20 | Nam Hoang Ly v Daniel Altmaier | 7-6,4-6,7-6 |
| ITF Qatar F3 | 2018/03/15 11:30 | Fajing Sun v Daniel Altmaier | 1-6,3-6 |
| ITF Qatar F3 | 2018/03/14 12:00 | James Ward v Daniel Altmaier | 4-6,4-6 |
| ITF Qatar F3 | 2018/03/13 13:50 | Fred Simonsson v Daniel Altmaier | 6-7,2-6 |
| Challenger Burnie | 2018/02/03 03:00 | Daniel Altmaier v Stephane Robert | 1-6,2-6 |
| Challenger Burnie | 2018/02/02 03:30 | Jason Kubler v Daniel Altmaier | 3-6,6-2,2-6 |
| Challenger Burnie | 2018/02/01 02:40 | Yusuke Takahashi v Daniel Altmaier | 6-7,3-6 |
| Challenger Burnie | 2018/01/30 23:00 | Daniel Altmaier v Christian Harrison | 6-0,6-4 |