Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| Challenger Jinan | 2018/08/07 09:10 | Hiroki Moriya v Ze Zhang | 3-6,4-6 |
| Challenger Chengdu | 2018/08/04 03:00 | Ze Zhang v Akira Santillan | 6-4,7-6 |
| Challenger Chengdu | 2018/08/01 09:45 | Ze Zhang v Alexander Bublik | 4-6,6-4,6-2 |
| Challenger Chengdu | 2018/07/31 03:00 | Ze Zhang v Di Wu | 7-5,6-2 |
| Challenger Bastad | 2018/07/10 09:00 | Corentin Moutet v Ze Zhang | 6-2,6-4 |
| Challenger Recanati | 2018/07/04 13:35 | Ze Zhang v Salvatore Caruso | 4-6,6-3,5-7 |
| Challenger - Busan | 2018/05/18 03:15 | Yosuke Watanuki v Ze Zhang | 4-6,6-4,6-1 |
| Challenger - Busan | 2018/05/17 02:00 | Ze Zhang v Yuki Bhambri | 6-4,6-3 |
| Challenger Jinan | 2018/08/07 09:15 | Yusuke Takahashi v Hiroyasu Ehara | 6-4,6-3 |
| Challenger Chengdu | 2018/07/31 06:25 | Yusuke Takahashi v James Ward | 3-6,3-6 |
| Challenger - Granby | 2018/07/24 18:50 | Yusuke Takahashi v Peter Polansky | 4-6,1-6 |
| Challenger Gatineau | 2018/07/17 14:00 | Yusuke Takahashi v Go Soeda | 4-6,3-6 |
| Challenger - Winnipeg | 2018/07/10 15:00 | Yusuke Takahashi v Jason Kubler | 2-6,2-6 |
| Challenger Fergana | 2018/06/18 09:05 | Yusuke Takahashi v Duckhee Lee | 6-7,1-6 |
| Challenger - Almaty | 2018/06/13 05:00 | Yusuke Takahashi v Roberto Cid Subervi | 1-6,0-6 |
| Challenger Almaty - kvalifikácia | 2018/06/11 04:00 | Yusuke Takahashi v Gerard Granollers-Pujol | 5-7,0-6 |