Stadium: Court 4 Round: 62 Ground: Clay
| ITF Belgium F4 | 2018/07/14 07:00 | Javier Naser v Oscar Matias Leiva Biason | 6-2,6-0 |
| ITF Germany F7 | 2018/07/09 08:00 | Andres Urrea v Oscar Matias Leiva Biason | 7-6,6-2 |
| ITF Belgium F2 Qual | 2018/06/24 14:50 | Oscar Matias Leiva Biason v Paul Valsecchi | 2-6,1-6 |
| ITF Belgium F2 Qual | 2018/06/23 13:20 | Oscar Matias Leiva Biason v Yannis Zekri | 6-1,6-0 |
| ITF Egypt F13 | 2018/04/08 08:00 | Issam Haitham Taweel v Oscar Matias Leiva Biason | 6-2,6-0 |
| ITF Egypt F12 | 2018/03/31 08:00 | Joao Giannella v Oscar Matias Leiva Biason | 6-2,6-1 |
| ITF Greece F5 | 2018/03/24 07:30 | Calin Manda v Oscar Matias Leiva Biason | 6-2,6-1 |
| ITF Greece F3 | 2018/03/10 07:30 | Herman Meeuwes Mattheo Knoop v Oscar Matias Leiva Biason | 6-2,7-6 |
| ITF Poland F1 | 2018/04/29 07:00 | Moritz Dettinger v Jannik Sinner | 5-7,3-6 |
| ITF Poland F1 | 2018/04/28 07:00 | Constantin Christ v Moritz Dettinger | 0-6,2-6 |
| ITF Germany F1 | 2018/01/07 15:00 | Dan Added v Moritz Dettinger | 7-6,6-4 |
| ITF Germany F1 | 2018/01/07 08:00 | Moritz Dettinger v Laurin Aerne | 6-3,6-1 |
| ITF Greece F7 | 2017/10/30 08:00 | Peter Heller v Moritz Dettinger | 4-6,6-4,6-2 |
| ITF Greece F7 | 2017/10/29 08:30 | Sandro Kopp v Moritz Dettinger | 6-7,0-6 |
| ITF Greece F7 | 2017/10/28 08:00 | Moritz Dettinger v Alexandru Vasile Manole | 6-4,6-4 |
| ITF Greece F6 | 2017/10/23 07:00 | Mousheg Hovhannisyan v Moritz Dettinger | 6-7,6-3,6-3 |