Round: 25 Ground: Clay
| ITF Austria F1 | 2017/07/03 11:00 | Andrea Pellegrino v Ollert, Lukas | 6-2,6-1 |
| ITF Belgium F1 | 2017/06/23 08:00 | Ollert, Lukas v Nicola Kuhn | 5-7,3-6 |
| ITF Belgium F1 | 2017/06/21 09:00 | Ollert, Lukas v Cailleau, Jolan | 2-6,6-4,6-0 |
| ITF Belgium F1 | 2017/06/20 12:25 | Ollert, Lukas v Mats Rosenkranz | 6-2,6-3 |
| ITF Hungary F4 | 2017/06/12 11:10 | Ollert, Lukas v Ulises Blanch | 3-6,0-6 |
| ITF Italy F12 | 2017/05/11 08:55 | Ollert, Lukas v Westerhof, Boy | 5-7,3-6 |
| ITF Italy F12 | 2017/05/10 07:30 | Mertens, Yannick v Ollert, Lukas | 6-3,4-6,2-6 |
| ITF USA F15 | 2017/04/27 17:00 | Ollert, Lukas v Rodriguez-Pace, Ricardo | 6-4,3-6,4-6 |
| ITF Germany F5 | 2017/06/27 15:30 | Antoine Hoang v Kocevar-Desman, Tom | 6-2,6-0 |
| ITF Germany F4 | 2017/06/22 13:00 | Alexander Vasilenko v Kocevar-Desman, Tom | 6-3,4-6,6-4 |
| ITF Germany F4 | 2017/06/20 09:00 | Guttau, Niklas v Kocevar-Desman, Tom | 3-6,2-6 |
| ITF France F10 | 2017/05/03 15:00 | Gregoire Barrere v Kocevar-Desman, Tom | 7-6,6-3 |
| ITF France F10 | 2017/05/01 10:00 | Kocevar-Desman, Tom v Jankovits, Yannick | 6-3,6-1 |
| ITF Qatar F2 Qual | 2017/04/10 13:25 | Kocevar-Desman, Tom v Toby Martin | 6-4,5-7,5-7 |
| ITF Qatar F2 Qual | 2017/04/09 12:00 | Kocevar-Desman, Tom v Eon, Julien | 7-6,6-2 |
| Qatar F1, Singles | 2017/04/04 12:00 | Daniel Altmaier v Kocevar-Desman, Tom | 7-6,6-1 |