Round: 25 Ground: Hardcourt outdoor
| Challenger Kobe | 2018/11/13 04:05 | Shinji Hazawa v Andrew Harris | 3-6,6-3,3-6 |
| ITF Japan F8 | 2018/06/14 01:00 | Gengo Kikuchi v Shinji Hazawa | 6-4,6-3 |
| ITF Japan F8 | 2018/06/13 03:20 | Shinji Hazawa v Thomas Fancutt | 6-1,6-2 |
| ITF Japan F7 | 2018/06/05 02:45 | Yuga Tashiro v Shinji Hazawa | 7-5,7-6 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Shinji Hazawa v Teppei Uesugi | 6-4,4-6,6-7 |
| ITF Japan F5 | 2018/04/05 02:00 | Shinji Hazawa v Yusuke Takahashi | 5-7,0-6 |
| ITF Japan F5 | 2018/04/04 01:00 | Chuhan Wang v Shinji Hazawa | 5-7,5-7 |
| ITF Japan F5 | 2018/04/02 06:25 | Yuki Mochizuki v Shinji Hazawa | 0-6,0-6 |
| ITF Egypt F31 | 2018/12/11 08:00 | Kuan-Yi Lee v Anze Arh | 6-4,6-2 |
| ITF Egypt F30 | 2018/12/04 08:00 | Adrian Exposito v Kuan-Yi Lee | 2-6,6-3,6-2 |
| ITF Thailand F9 | 2018/11/17 03:00 | Kuan-Yi Lee v Konstantin Kravchuk | 5-7,2-6 |
| ITF Thailand F9 | 2018/11/15 03:00 | Kuan-Yi Lee v Adam El Mihdawy | 7-6,4-6,7-5 |
| ITF Thailand F9 | 2018/11/14 03:00 | Mikhail Fufygin v Kuan-Yi Lee | 4-6,5-7 |
| ITF Thailand F9 | 2018/11/13 05:00 | Wei-De Lin v Kuan-Yi Lee | 7-6,4-6,0-6 |
| ITF Thailand F8 | 2018/11/08 07:10 | Kuan-Yi Lee v Konstantin Kravchuk | 6-4,1-6,4-6 |
| ITF Thailand F8 | 2018/11/07 02:00 | Min-Kyu Song v Kuan-Yi Lee | 3-6,3-6 |