Stadium: Court 16 Round: 25 Ground: Clay
| Challenger Barletta Qual | 2018/04/07 08:00 | Semmler, Miguel v Haider-Maurer, Andreas | 4-6,5-7 |
| Challenger Alicante Qual | 2018/03/31 08:30 | Semmler, Miguel v 비렐라 마르티네즈, 마리오 | 2-6,1-6 |
| Challenger Marbella Qual | 2018/03/24 10:00 | Semmler, Miguel v 도나티, 마테오 | 4-6,4-6 |
| ITF Spain F7 | 2018/03/20 10:25 | Semmler, Miguel v 바란코 코사노, 자비엘 | 3-6,6-7 |
| Spain F6, Singles | 2018/03/15 13:00 | Semmler, Miguel v 트룬겔리티, 마르코 | 6-2,2-6,3-6 |
| ITF Portugal F3 | 2018/03/11 11:00 | Semmler, Miguel v 베가 헤르난데스, 데이비드 | 2-6,3-6 |
| ITF Portugal F3 | 2018/03/10 14:25 | Semmler, Miguel v Walch, Antoine | 6-4,6-4 |
| ITF Portugal F3 | 2018/03/08 13:30 | Semmler, Miguel v 보스웰 P, 피터 | 6-7,6-0,7-5 |
| ITF Spain F9 Qual | 2018/04/16 10:25 | Nikolas Sanchez Izquierdo v Chaix, Louis | 6-2,6-1 |
| ITF Spain F9 Qual | 2018/04/15 10:30 | 니부어, 리얀 v Nikolas Sanchez Izquierdo | 3-6,3-6 |
| ITF Spain F9 Qual | 2018/04/14 12:15 | 모로 카나스, 알레잔드로 v Nikolas Sanchez Izquierdo | 4-6,0-6 |
| ITF Tunisia F12 | 2018/03/26 11:30 | Nikolas Sanchez Izquierdo v 마르티 푸졸라스, 알렉스 | 6-1,4-6,6-7 |
| ITF Spain F7 | 2018/03/19 09:30 | Cortes Alcaraz, Aaron v Nikolas Sanchez Izquierdo | 6-2,6-1 |
| Tunisia F10, Singles Qualifying | 2018/03/15 08:30 | Torre, Eduardo Agustin v Nikolas Sanchez Izquierdo | 7-6,6-3 |
| Tunisia F10, Singles Qualifying | 2018/03/13 09:40 | Nikolas Sanchez Izquierdo v 람베르티, 에도알도 | 6-0,6-4 |
| Tunisia F10, Singles Qualifying | 2018/03/12 08:30 | Nikolas Sanchez Izquierdo v Bruandet, Loick | 6-2,6-0 |