Stadium: COURT 3 Round: 27 Ground: Clay
| ITF Spain F5 | 2016/02/22 11:40 | Semmler, Miguel v Dima, Dragos | 3-6,6-1,1-6 |
| ITF Romania F8 | 2018/08/09 07:00 | Semmler, Miguel v Dan Alexandru Tomescu | 7-6,6-2 |
| ITF Romania F8 | 2018/08/08 07:00 | Semmler, Miguel v Georgescu, Matei Adrian | 6-0,6-4 |
| Segovia, Spain | 2018/07/31 08:00 | Semmler, Miguel v Arnaboldi, Andrea | 6-4,5-7,5-7 |
| ITF Spain F20 | 2018/07/25 16:10 | Romero de Avila Senise, Alberto v Semmler, Miguel | 6-7,6-2,6-3 |
| ITF Spain F20 | 2018/07/23 16:35 | Semmler, Miguel v Salman, Omar | 6-2,6-4 |
| ITF Spain F19 | 2018/07/18 16:00 | Lopez San Martin, Alvaro v Semmler, Miguel | 3-6,7-6,7-5 |
| ITF Spain F18 | 2018/07/10 15:10 | Semmler, Miguel v Pedro Cachin | 2-6,1-6 |
| ITF France F10 | 2018/06/19 13:10 | Semmler, Miguel v Matteo Martineau | 4-6,4-6 |
| ITF Romania F8 | 2018/08/09 09:20 | Cornea, Vlad Victor v Dima, Dragos | 2-6,5-7 |
| ITF Romania F8 | 2018/08/08 12:05 | Bogdan Pavel v Dima, Dragos | 2-6,1-6 |
| Germany F8, Singles | 2018/07/19 12:25 | Dima, Dragos v Felipe Meligeni Rodrigues Alves | 3-6,4-6 |
| Germany F8, Singles | 2018/07/18 09:30 | Dima, Dragos v Yuksel, Anil | 6-1,6-3 |
| Braunchsweig, Germany | 2018/07/09 10:00 | Netuschil, Marvin v Dima, Dragos | 6-3,6-1 |
| Challenger Braunschweig Qual | 2018/07/08 12:45 | Dima, Dragos v Satral, Jan | 1-6,6-1,4-6 |
| Challenger Braunschweig Qual | 2018/07/07 14:30 | Dima, Dragos v Marvin Moeller | 7-6,6-1 |
| Challenger Marburg | 2018/07/03 10:00 | Felix Auger Aliassime v Dima, Dragos | 6-3,4-6,6-4 |