Stadium: Court 1 Round: 25 Ground: Clay
| ITF Finland F1 | 2017/08/04 14:15 | Michon, Axel v Gelhardt, Luca | 6-1,6-3 |
| ITF Finland F1 | 2017/08/03 11:40 | Siimar, Mattias v Gelhardt, Luca | 6-4,1-6,6-7 |
| ITF Finland F1 | 2017/08/02 09:40 | Gelhardt, Luca v Alexis Gautier | 4-6,6-2,6-3 |
| ITF Estonia F1 | 2017/07/26 09:50 | Gelhardt, Luca v Silva, Caio | 3-6,3-6 |
| ITF Estonia F1 | 2017/07/24 09:20 | Gelhardt, Luca v Tverijonas, Julius | 7-6,6-2 |
| ITF Lithuania F1 | 2017/07/20 10:25 | Hirschmueller, Christian v Gelhardt, Luca | 7-5,6-3 |
| ITF Lithuania F1 | 2017/07/19 11:10 | Lazdins, Arturs v Gelhardt, Luca | 3-6,2-6 |
| ITF Lithuania F1 | 2017/07/18 10:25 | Gelhardt, Luca v Vibert, Francois Arthur | 6-3,6-3 |
| ITF France F17 | 2017/07/25 08:00 | Meraut, Tristan v Okala, Jules | 3-6,0-6 |
| ITF Germany F7 | 2017/07/11 09:00 | Lescure, Mick v Meraut, Tristan | 6-3,6-4 |
| ITF Germany F6 | 2017/07/09 12:00 | Meraut, Tristan v Alexis Gautier | 6-3,6-4 |
| ITF Germany F6 | 2017/07/08 12:00 | Meraut, Tristan v Christoph Negritu | 6-2,6-2 |
| ITF Germany F6 | 2017/07/07 17:30 | Martinez, Mirko v Meraut, Tristan | 3-6,1-6 |
| ITF Germany F6 | 2017/07/06 11:45 | Meraut, Tristan v Obert, Adrian | 6-4,6-3 |
| ITF Germany F6 | 2017/07/05 12:30 | Davydenko, Philipp v Meraut, Tristan | 4-6,2-6 |
| ITF Germany F6 | 2017/07/03 12:00 | Meraut, Tristan v Yegros Codiani, Rene | 6-2,6-4 |