Round: 62 Ground: Hardcourt outdoor
| ITF China F4 | 2018/04/30 04:40 | Tianjia Guo v Zihao Xia | 0-6,0-6 |
| ITF China F3 Qual | 2018/01/21 05:00 | Tianjia Guo v Liang-Yu Lin | 1-6,2-6 |
| ITF China F2 Qual | 2018/01/15 03:40 | Chukang Wang v Tianjia Guo | 6-2,6-4 |
| ITF China F2 Qual | 2018/01/14 06:10 | Joachim Li-Ernoul v Tianjia Guo | 6-3,3-6,1-6 |
| ITF China F1 Qual | 2018/01/07 02:00 | Tianjia Guo v Hu Liu | 7-5,0-6,2-6 |
| ITF Malaysia F3 | 2017/10/28 04:30 | Marc Dijkhuizen v Tianjia Guo | 7-6,6-2 |
| ITF Malaysia F2 | 2017/10/21 01:00 | Tianjia Guo v Vinayak Sharma Kaza | 2-6,3-6 |
| ITF Malaysia F1 | 2017/10/15 01:00 | Tianjia Guo v Liran Chen | 1-6,3-6 |