Stadium: Court 1 Round: 25
| Challenger Andria | 2018/11/18 11:50 | Illya Marchenko v Alen Avidzba | 5-7,6-4,6-4 |
| Challenger Knoxville | 2018/11/04 21:15 | Alen Avidzba v Alejandro Gomez | 6-7,4-6 |
| Challenger Charlottesville | 2018/10/28 15:40 | Tommy Paul v Alen Avidzba | 7-6,6-2 |
| Challenger Charlottesville | 2018/10/27 16:15 | Alen Avidzba v Yshai Oliel | 6-2,6-4 |
| Challenger Las Vegas | 2018/10/20 22:00 | Lloyd Glasspool v Alen Avidzba | 7-5,6-3 |
| Challenger Tashkent | 2018/10/08 09:50 | Alen Avidzba v Aleksandr Nedovyesov | 3-6,0-6 |
| ITF France F18 | 2018/09/21 10:30 | Alen Avidzba v Yannick Mertens | 1-6,0-6 |
| ITF France F18 | 2018/09/19 14:00 | Alen Avidzba v Eduardo Struvay | 3-6,6-3,7-6 |
| Challenger Liuzhou | 2018/10/20 06:55 | Renta Tokuda v Yusuke Takahashi | 7-5,6-0 |
| Challenger Ningbo | 2018/10/16 10:00 | Tatsuma Ito v Yusuke Takahashi | 7-6,6-3 |
| Challenger Ningbo | 2018/10/15 02:30 | Arjun Kadhe v Yusuke Takahashi | 4-6,1-6 |
| Challenger Ningbo | 2018/10/14 02:30 | Zhao Zhao v Yusuke Takahashi | 0-6,6-7 |
| ATP Chengdu | 2018/09/22 07:20 | Yusuke Takahashi v Felix Auger Aliassime | 3-6,2-6 |
| Challenger Shanghai | 2018/09/08 07:55 | Yusuke Takahashi v Yuta Shimizu | 6-3,2-6,5-7 |
| Challenger Zhangjiagang | 2018/09/05 04:20 | Yusuke Takahashi v Alexander Bublik | 3-6,4-6 |
| Challenger Zhangjiagang | 2018/09/04 02:00 | Yuta Shimizu v Yusuke Takahashi | 6-4,6-2 |