Stadium: Centre Court 14 Round: 26 Ground: Clay
| ITF Spain F10 | 2018/04/24 08:00 | Ignacio B Alia v Michiel de Krom | 0-6,0-6 |
| ITF Spain F9 | 2018/04/18 09:00 | Michiel de Krom v Saez, Juan Carlos | 5-7,0-6 |
| ITF Spain F9 Qual | 2018/04/16 10:30 | Michiel de Krom v Cortes Alcaraz, Aaron | 7-6,6-3 |
| ITF Spain F9 Qual | 2018/04/15 10:30 | Michiel de Krom v Neubau, Marco | 6-2,6-1 |
| ITF Egypt F11 | 2018/03/28 13:30 | Michiel de Krom v Lucas Miedler | 6-7,1-6 |
| ITF Egypt F10 | 2018/03/20 08:00 | Manafov, Vladyslav v Michiel de Krom | 6-3,7-6 |
| Turkey F8, Singles Qualifying | 2018/02/27 08:00 | Michiel de Krom v Orlando Luz | 6-4,6-7,4-6 |
| ITF Turkey F7 | 2018/02/18 09:00 | Michiel de Krom v Masaya Kobayashi | 2-6,1-6 |
| ITF Spain F10 | 2018/04/24 09:35 | Cortes Alcaraz, Aaron v Doumbia, Sadio | 3-6,6-4,3-6 |
| ITF Portugal F8 | 2018/04/19 11:50 | Barry, Sam v Doumbia, Sadio | 6-3,7-6 |
| ITF Portugal F8 | 2018/04/17 11:45 | Daniel Batista v Doumbia, Sadio | 1-6,4-6 |
| Challenger St Brieuc Qual | 2018/03/25 09:30 | Wang, Tak Khunn v Doumbia, Sadio | 7-6,6-4 |
| Challenger St Brieuc Qual | 2018/03/24 12:20 | Descloix, Dorian v Doumbia, Sadio | 4-6,4-6 |
| Challenger Lille Qual | 2018/03/19 09:30 | Guez, David v Doumbia, Sadio | 6-3,6-3 |
| Challenger Lille Qual | 2018/03/18 10:00 | Geens, Clement v Doumbia, Sadio | 6-7,3-6 |
| Challenger Lille Qual | 2018/03/17 09:00 | Kanar, Jonathan v Doumbia, Sadio | 4-6,3-6 |