Stadium: Court 17 Round: 26 Ground: Clay
| ITF France F10 | 2018/06/19 11:15 | Guillermo Olaso v Eduard Guell Bartrina | 4-6,6-3,7-6 |
| Challenger Poznan Qual | 2018/06/04 13:30 | Jeremy Jahn v Guillermo Olaso | 6-7,6-1,6-2 |
| Challenger Poznan Qual | 2018/06/04 08:00 | Ronald Slobodchikov v Guillermo Olaso | 4-6,6-3,1-6 |
| Challenger Poznan Qual | 2018/06/03 09:25 | Juan Pablo Ficovich v Guillermo Olaso | 4-6,2-6 |
| Challenger Busan Qual | 2018/05/14 02:00 | Rubin Statham v Guillermo Olaso | 6-4,6-2 |
| Challenger Busan Qual | 2018/05/13 02:00 | Thomas Fancutt v Guillermo Olaso | 1-6,5-7 |
| Challenger Busan Qual | 2018/05/12 01:00 | Jae Hwan Kim v Guillermo Olaso | 0-6,5-7 |
| Challenger Glasgow | 2018/05/04 09:30 | Lukas Lacko v Guillermo Olaso | 6-2,6-3 |
| ITF France F10 | 2018/06/19 16:00 | Paul Cayre v Maxime Tchoutakian | 4-6,4-6 |
| ITF Tunisia F22 | 2018/06/06 09:00 | Maxime Tchoutakian v Louis Tessa | 4-6,2-6 |
| ITF Turkey F19 | 2018/05/17 09:15 | Maxime Tchoutakian v Bogdan Borza | 2-6,1-6 |
| ITF Turkey F19 | 2018/05/16 07:00 | Maxime Tchoutakian v Shahin Khaledan | 6-1,6-4 |
| ITF Tunisia F17 | 2018/05/06 09:00 | Andres Artunedo Martinavarr v Maxime Tchoutakian | 2-6,7-5,6-3 |
| ITF Tunisia F17 | 2018/05/05 09:00 | Maxime Tchoutakian v Sem Verbeek | 4-6,6-3,6-4 |
| ITF Tunisia F17 | 2018/05/04 10:45 | Peter Bothwell v Maxime Tchoutakian | 6-4,2-6,6-7 |
| ITF Tunisia F17 | 2018/05/03 11:05 | Stefan Petrovic v Maxime Tchoutakian | 2-6,1-6 |