Stadium: Court 5 Round: 45
| Challenger Almaty Qual | 2018/06/10 04:30 | Shuichi Sekiguchi v Joao Menezes | 6-3,3-6,6-7 |
| Challenger Almaty Qual | 2018/06/09 04:00 | Shuichi Sekiguchi v Timur Maulenov | 7-5,6-3 |
| Challenger Shymkent Qual | 2018/06/03 04:00 | Shuichi Sekiguchi v Steven Diez | 1-6,4-6 |
| Challenger Shymkent Qual | 2018/06/02 04:00 | Robin Kern v Shuichi Sekiguchi | 4-6,2-6 |
| Challenger Mestre Qual | 2018/05/19 14:35 | Shuichi Sekiguchi v Riccardo Bonadio | 1-6,2-6 |
| Challenger Samarkand Qual | 2018/05/12 07:50 | Shuichi Sekiguchi v Mukund Sasikumar | 4-6,6-7 |
| Challenger Karshi | 2018/05/08 05:00 | Shuichi Sekiguchi v Aldin Setkic | 1-6,5-7 |
| Challenger Karshi Qual | 2018/05/07 05:30 | Shuichi Sekiguchi v N. Vijay Sundar Prashanth | 6-7,6-4,7-6 |
| Challenger – Almatõ | 2018/06/12 05:30 | Nino Serdarusic v Gerard Granollers-Pujol | 6-3,7-6 |
| Challenger Almaty Qual | 2018/06/11 04:00 | Yusuke Takahashi v Gerard Granollers-Pujol | 5-7,0-6 |
| Challenger Almaty Qual | 2018/06/10 06:25 | Roman Khassanov v Gerard Granollers-Pujol | 4-6,1-6 |
| Challenger Almaty Qual | 2018/06/09 07:45 | Gerard Granollers-Pujol v Steven Diez | 7-6,6-3 |
| Challenger Shymkent Qual | 2018/06/03 04:00 | Kevin Krawietz v Gerard Granollers-Pujol | 6-3,3-6,6-3 |
| Challenger Shymkent Qual | 2018/06/02 04:00 | Gerard Granollers-Pujol v Ivan Gakhov | 7-6,6-4 |
| ATP Geneva Qual | 2018/05/19 12:10 | Gerard Granollers-Pujol v Dominik Koepfer | 2-6,0-6 |
| Challenger Lisbon Qual | 2018/05/13 10:00 | Juan Pablo Ficovich v Gerard Granollers-Pujol | 4-6,7-6,6-1 |