Stadium: Grandstand Round: 45 Ground: Clay
| Challenger Bordeaux Qual | 2018/05/13 11:30 | Mathieu Perchicot v Sadio Doumbia | 6-3,6-4 |
| Challenger Bordeaux Qual | 2018/05/12 13:00 | Sadio Doumbia v Mikael Ymer | 6-3,1-6,6-3 |
| ITF Spain F10 | 2018/04/27 09:00 | Carlos Boluda-Purkiss v Sadio Doumbia | 6-2,6-1 |
| ITF Spain F10 | 2018/04/26 09:00 | Michiel de Krom v Sadio Doumbia | 7-6,4-6,0-6 |
| ITF Spain F10 | 2018/04/24 09:35 | Aaron Cortes Alcaraz v Sadio Doumbia | 3-6,6-4,3-6 |
| ITF Portugal F8 | 2018/04/19 11:50 | Sam Barry v Sadio Doumbia | 6-3,7-6 |
| ITF Portugal F8 | 2018/04/17 11:45 | Daniel Batista v Sadio Doumbia | 1-6,4-6 |
| Challenger St Brieuc Qual | 2018/03/25 09:30 | Tak Khunn Wang v Sadio Doumbia | 7-6,6-4 |
| Challenger Lisbon Qual | 2018/05/12 10:50 | Roberto Marcora v Gerard Granollers-Pujol | 5-7,6-7 |
| Challenger Rome | 2018/05/08 12:05 | Gianluigi Quinzi v Roberto Marcora | 6-4,6-4 |
| Challenger Rome Qual | 2018/05/07 08:00 | Inigo C Huegun v Roberto Marcora | 5-7,7-6,6-3 |
| Challenger Rome Qual | 2018/05/06 10:10 | Daniel Masur v Roberto Marcora | 6-1,2-6,5-7 |
| Challenger Rome Qual | 2018/05/05 12:15 | Roberto Marcora v Cristian Rodriguez | 6-2,6-4 |
| Challenger Ostrava Qual | 2018/04/30 11:20 | Roberto Marcora v Elliot Benchetrit | 4-6,4-6 |
| Challenger Ostrava Qual | 2018/04/29 14:15 | Ivan Gakhov v Roberto Marcora | 1-6,4-6 |
| Challenger Ostrava Qual | 2018/04/28 15:05 | Pietro Rondoni v Roberto Marcora | 4-6,1-6 |