Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF Thailand F4 | 2018/09/22 02:30 | Guo, Tianjia v Tanthaseraneewat, Suthinan | 4-6,1-6 |
| ITF China F12 Qual | 2018/08/12 02:00 | Guo, Tianjia v Peranamallur, Chandrasekhar Vignesh | 2-6,1-6 |
| ITF China F10 Qual | 2018/07/07 02:00 | Owen Lu v Guo, Tianjia | 3-6,6-2,6-4 |
| ITF China F7 | 2018/05/29 03:35 | Natthasith Kunsuwan v Guo, Tianjia | 6-1,6-3 |
| ITF China F7 Qual | 2018/05/28 02:00 | Guo, Tianjia v Li, Jianhui | 1-6,2-6 |
| ITF China F7 Qual | 2018/05/27 02:00 | Guo, Tianjia v Dubey, Ritesh | 6-0,6-0 |
| ITF China F6 Qual | 2018/05/13 04:15 | Guo, Tianjia v Zhou, Xinmu | 2-6,2-6 |
| ITF China F5 Qual | 2018/05/05 07:40 | Lickle, Cameron v Guo, Tianjia | 6-1,6-3 |
| ITF Thailand F4 | 2018/09/26 05:40 | Kousuke Ogura v Meis, Pascal | 2-6,3-6 |
| ITF Thailand F4 | 2018/09/24 02:30 | Ruikai Wang v Kousuke Ogura | 3-6,1-6 |
| ITF Thailand F4 | 2018/09/23 04:00 | Kim, Yu-Seob v Kousuke Ogura | 4-6,1-6 |
| ITF Indonesia F3 Qual | 2018/08/04 04:30 | Kousuke Ogura v Bhuyan, Ansu | 6-4,4-6,1-6 |
| ITF China F10 Qual | 2018/07/08 02:00 | Kousuke Ogura v Statham, Mikal | 4-6,0-6 |
| ITF China F10 Qual | 2018/07/07 05:00 | Natthasith Kunsuwan v Kousuke Ogura | 6-7,4-6 |
| ITF China F9 | 2018/07/05 05:30 | Ji Hoon Son v Kousuke Ogura | 6-2,6-4 |
| ITF China F9 | 2018/07/03 08:25 | Kousuke Ogura v Wang, Chuhan | 4-6,7-5,7-5 |