Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF China F5 | 2018/05/10 06:15 | Xin Gao v Kaito Uesugi | 7-6,5-7,3-6 |
| ITF China F5 | 2018/05/09 02:00 | Kaito Uesugi v Yecong He | 6-3,5-7,7-5 |
| ITF Japan F6 | 2018/04/10 05:10 | Kaito Uesugi v Sora Fukuda | 5-7,5-7 |
| ITF Japan F6 Qual | 2018/04/09 01:00 | Kaito Uesugi v Takuya Kumasaka | 6-3,6-1 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Kaito Uesugi v Ko Suzuki | 7-6,6-4 |
| ITF Japan F3 | 2018/03/23 02:00 | Kaito Uesugi v Makoto Ochi | 4-6,6-4,3-6 |
| ITF Japan F3 | 2018/03/22 08:45 | Sho Katayama v Kaito Uesugi | 3-6,1-6 |
| ITF Japan F3 | 2018/03/22 05:25 | Kaito Uesugi v Shintaro Imai | 6-3,2-6,6-1 |
| ITF China F5 | 2018/05/10 03:00 | Weiqiang Zheng v Harri Heliovaara | 5-7,1-6 |
| ITF China F5 | 2018/05/08 02:00 | Zihao Xia v Harri Heliovaara | 6-4,3-6,2-6 |
| Challenger Glasgow | 2018/05/04 13:50 | Harri Heliovaara v Matteo Viola | 7-5,2-6,5-7 |
| Challenger Glasgow | 2018/05/03 15:00 | James Ward v Harri Heliovaara | 5-7,4-6 |
| Challenger Glasgow | 2018/05/01 10:45 | Harri Heliovaara v Jonathan Gray | 6-3,6-1 |
| Challenger Glasgow Qual | 2018/04/29 15:00 | Harri Heliovaara v Adrien Bossel | 2-6,7-6,6-4 |
| Challenger Glasgow Qual | 2018/04/28 14:20 | Harri Heliovaara v Scott Duncan | 6-1,6-4 |
| Davis Cup | 2018/04/08 10:30 | Harri Heliovaara v Ricardas Berankis | 2-6,3-6 |