Stadium: Court 1 Round: 45 Ground: Clay
| Shymkent, Kazakhstan, Qualifying | 2018/06/03 04:00 | Sekiguchi, Shuichi v Steven Diez | 1-6,4-6 |
| Shymkent, Kazakhstan, Qualifying | 2018/06/02 04:00 | Kern, Robin v Sekiguchi, Shuichi | 4-6,2-6 |
| Challenger Mestre Qual | 2018/05/19 14:35 | Sekiguchi, Shuichi v Riccardo Bonadio | 1-6,2-6 |
| Challenger Samarkand Qual | 2018/05/12 07:50 | Sekiguchi, Shuichi v Mukund Sasikumar | 4-6,6-7 |
| Challenger Karshi | 2018/05/08 05:00 | Sekiguchi, Shuichi v Aldin Setkic | 1-6,5-7 |
| Challenger Karshi Qual | 2018/05/07 05:30 | Sekiguchi, Shuichi v Prashanth, N. Vijay Sundar | 6-7,6-4,7-6 |
| Challenger Karshi Qual | 2018/05/06 06:00 | Shyla, Yaraslau v Sekiguchi, Shuichi | 6-3,1-6,2-6 |
| Challenger Karshi Qual | 2018/05/05 06:35 | Sekiguchi, Shuichi v Fufygin, Mikhail | 4-6,6-4,6-1 |
| ITF Turkey F21 Qual | 2018/05/26 10:00 | Igor Saveljic v Maulenov, Timur | 6-3,6-4 |
| ITF Turkey F20 Qual | 2018/05/21 07:30 | Maulenov, Timur v Hubner, Edward | 1-6,3-6 |
| ITF Turkey F20 Qual | 2018/05/20 07:30 | Delmas, Amaury v Maulenov, Timur | 7-6,2-6,1-6 |
| ITF Turkey F20 Qual | 2018/05/19 07:30 | Schmitz Frederico, Leonardo v Maulenov, Timur | 3-6,7-5,4-6 |
| ITF Turkey F19 Qual | 2018/05/13 07:30 | Khaledan, Shahin v Maulenov, Timur | 7-5,4-6,6-0 |
| ITF Kazakhstan F5 | 2018/04/24 07:05 | Maulenov, Timur v Denis Yevseyev | 4-6,1-6 |
| ITF Kazakhstan F4 Qual | 2018/04/16 06:30 | Dubinsky, Vladislav v Maulenov, Timur | 6-4,6-4 |
| ITF Kazakhstan F4 Qual | 2018/04/14 10:25 | Maulenov, Timur v Kashirin, Nikita | 6-4,6-3 |