| Challenger Segovia | 2014/07/30 11:30 | Roberto Ortega-Olmedo v Marsel Ilhan | 0-6,6-3,7-6 |
| ITF Spain F10 | 2015/04/23 09:00 | Jorge Hernando-Ruano v Roberto Ortega-Olmedo | 4-6,3-6 |
| ITF Spain F10 | 2015/04/21 08:45 | Marcos Giraldi Requena v Roberto Ortega-Olmedo | 6-1,1-6,4-6 |
| ITF Spain F29 | 2015/04/07 09:35 | Carlos Gomez-Herrera v Roberto Ortega-Olmedo | 5-7,7-5,4-6 |
| ITF Spain F7 | 2015/04/02 09:00 | Jorge Hernando-Ruano v Roberto Ortega-Olmedo | 6-3,6-7,6-7 |
| ITF Spain F7 | 2015/03/31 09:00 | Goncalo Oliveira v Roberto Ortega-Olmedo | 3-6,6-4,3-6 |
| ITF Spain F6 | 2015/03/27 11:35 | Yannick Mertens v Roberto Ortega-Olmedo | 6-3,6-4 |
| ITF Dominican Republic F3 | 2014/12/11 17:00 | Roberto Ortega-Olmedo v Thiago Monteiro | 6-7,6-3,3-6 |
| ITF Dominican Republic F3 | 2014/12/09 15:30 | Roberto Ortega-Olmedo v Kevin Kylar | 6-2,6-1 |
| ATP Barcelona | 2015/04/22 13:55 | Feliciano Lopez v Marsel Ilhan | 6-2,5-7,7-6 |
| ATP Barcelona | 2015/04/21 10:40 | Marsel Ilhan v James Ward | 7-6,3-6,6-1 |
| Davis Cup | 2015/03/06 13:15 | Marsel Ilhan v Tucker Vorster | 6-4,6-3,7-5 |
| US Open Qual | 2014/08/22 18:30 | Yoshihito Nishioka v Marsel Ilhan | 6-3,6-1 |
| US Open Qual | 2014/08/21 15:00 | Alexander Zverev v Marsel Ilhan | 6-4,5-7,6-7 |
| Challenger Segovia | 2014/07/30 11:30 | Roberto Ortega-Olmedo v Marsel Ilhan | 0-6,6-3,7-6 |
| ATP Hamburg | 2014/07/14 11:35 | Mikhail Kukushkin v Marsel Ilhan | 6-2,6-2 |
| ATP Hamburg Qual | 2014/07/12 10:50 | Demian Raab v Marsel Ilhan | 4-6,4-6 |