Stadium: Swiss Post Court Round: 62 Ground: Clay
| ITF Belgium F1 | 2017/06/20 14:10 | Mertens, Nico v Damiens, Antoine | 7-5,6-4 |
| Belgium F7, Singles Qualifying | 2018/08/05 08:00 | Mertens, Nico v Leiva Biason, Oscar Matias | 6-1,6-0 |
| ITF Germany F10 | 2018/08/01 14:05 | Mertens, Nico v Факундо Мена | 2-6,2-6 |
| ITF Germany F10 Qual | 2018/07/30 12:00 | Mertens, Nico v Нери Джуниор, Осни | 4-6,5-7 |
| ITF Germany F10 Qual | 2018/07/29 15:30 | Mertens, Nico v Никлас Кох | 6-4,7-6 |
| ITF Germany F9 | 2018/07/24 10:00 | Mertens, Nico v Мануэль Гинар | 0-6,6-4,4-6 |
| ITF Bosnia and Herzegovina F3 | 2018/05/29 10:40 | Mertens, Nico v Нерман Фатик | 4-6,3-6 |
| ITF Czech Republic F2 Qual | 2018/05/21 08:00 | Mertens, Nico v Франек, Михал | 3-6,2-6 |
| ITF Czech Republic F2 Qual | 2018/05/20 08:00 | Mertens, Nico v Cyprich, Radek | 6-2,6-2 |
| Belgium F7, Singles Qualifying | 2018/08/05 08:00 | Quin Verstegen v Damiens, Antoine | 1-6,1-6 |
| ITF Belgium F6 Qual | 2018/07/29 11:50 | Якуб Войцик v Damiens, Antoine | 7-6,6-2 |
| ITF Belgium F6 Qual | 2018/07/28 12:00 | Лаурин Аерне v Damiens, Antoine | 3-6,2-6 |
| ITF Belgium F3 Qual | 2018/07/02 08:00 | Damiens, Antoine v Теодор Гиуска | 1-6,6-7 |
| ITF Belgium F3 Qual | 2018/07/01 08:00 | Damiens, Antoine v Феликс Ромео | 6-7,6-2,6-1 |
| ITF Belgium F2 | 2018/06/26 08:00 | Фучиле, Лоренцо v Damiens, Antoine | 6-4,6-3 |
| ITF Belgium F2 Qual | 2018/06/25 09:45 | Александр Кнафф v Damiens, Antoine | 5-7,6-3,6-4 |
| ITF Belgium F2 Qual | 2018/06/24 11:00 | Gomez, Patricio v Damiens, Antoine | 2-6,0-6 |