Round: 27 Ground: Hardcourt outdoor
| ITF Spain F17 | 2016/06/16 15:30 | Ricardo Villacorta-Alonso v Miguel Semmler | 2-6,2-6 |
| ITF Spain F16 Qual | 2016/06/05 15:00 | Miguel Semmler v Alejandro Davidovich Fokina | 6-7,6-4,4-6 |
| ITF Spain F14 | 2016/05/21 08:30 | Jaume Munar v Miguel Semmler | 6-1,6-1 |
| ITF Spain F14 | 2016/05/20 12:25 | Miguel Semmler v Felix Auger Aliassime | 6-2,6-1 |
| ITF Spain F14 | 2016/05/19 10:00 | Jaume Pla Malfeito v Miguel Semmler | 4-6,4-6 |
| ITF Spain F14 | 2016/05/17 11:40 | Jorge L-Perez Fuster v Miguel Semmler | 6-4,2-6,5-7 |
| ITF Tunisia F18 | 2016/05/13 10:10 | Miguel Semmler v Roberto Marcora | 3-6,5-7 |
| ITF Tunisia F18 | 2016/05/12 10:40 | Jordan Ubiergo v Miguel Semmler | 7-6,3-6,3-6 |
| ITF Spain F17 | 2016/06/16 16:25 | Javier Barranco Cosano v Frederik Nielsen | 4-6,1-6 |
| ITF Spain F17 | 2016/06/14 14:30 | Jorge Hernando-Ruano v Frederik Nielsen | 4-6,6-7 |
| ITF Israel F6 | 2016/03/24 10:25 | Amir Weintraub v Frederik Nielsen | 6-3,6-4 |
| ITF Israel F6 | 2016/03/23 10:20 | Dmytro Kamynin v Frederik Nielsen | 3-6,6-4,3-6 |
| ITF Israel F6 | 2016/03/22 11:05 | Corentin Denolly v Frederik Nielsen | 3-6,7-6,2-6 |
| Davis Cup | 2016/03/04 11:55 | George Tsivadze v Frederik Nielsen | 6-7,0-6,1-6 |
| Challenger Wroclaw Qual | 2016/02/14 11:55 | Frederik Nielsen v Mats Moraing | 2-6,4-6 |
| Challenger Wroclaw Qual | 2016/02/13 09:20 | Frederik Nielsen v Jeremy Jahn | 6-4,7-6 |