Stadium: Court 10 輪: 25
| ITF M15安寧 | 2019/01/03 05:30 | 埃里克 Vanshelboim v Kazuki Nishiwaki | 4-6,6-1,6-4 |
| ITF M15安寧 | 2019/01/02 04:25 | Rui-Xuan Wang v Kazuki Nishiwaki | 6-1,2-6,4-6 |
| 神戶挑戰賽 | 2018/11/10 06:00 | 高欣 v Kazuki Nishiwaki | 6-4,6-4 |
| ITF澳大利亞F8 | 2018/10/10 01:00 | 科林•辛克萊 v Kazuki Nishiwaki | 6-7,6-4,6-4 |
| ITF澳大利亞F7 | 2018/10/04 00:00 | 科林•辛克萊 v Kazuki Nishiwaki | 6-3,6-3 |
| ITF澳大利亞F7 | 2018/10/02 01:45 | Connor Johnson v Kazuki Nishiwaki | 3-6,3-6 |
| 挑戰賽 上海 | 2018/09/08 05:00 | 阿爾丁 Setkic v Kazuki Nishiwaki | 6-3,6-2 |
| ITF荷蘭F6 | 2018/08/28 08:30 | Kazuki Nishiwaki v 凱文•卡欽斯基 | 2-6,3-6 |
| ITF泰國F6 | 2018/10/06 05:30 | 竹岛骏朗 v Tianjia Guo | 6-1,6-1 |
| ITF泰國F5 | 2018/09/29 04:30 | Tianjia Guo v Kousuke Ogura | 6-4,2-6,3-6 |
| ITF泰國F4 | 2018/09/22 02:30 | Tianjia Guo v Suthinan Tanthaseraneewat | 4-6,1-6 |
| ITF中國F12資格賽 | 2018/08/12 02:00 | Tianjia Guo v 維格奈西•佩拉納馬盧爾 | 2-6,1-6 |
| ITF中國F10資格賽 | 2018/07/07 02:00 | Owen Lu v Tianjia Guo | 3-6,6-2,6-4 |
| ITF中國F7 | 2018/05/29 03:35 | Natthasith 康蘇文 v Tianjia Guo | 6-1,6-3 |
| ITF中國F7資格賽 | 2018/05/28 02:00 | Tianjia Guo v Jianhui Li | 1-6,2-6 |
| ITF中國F7資格賽 | 2018/05/27 02:00 | Tianjia Guo v 裏特什•迪貝 | 6-0,6-0 |