Stadium: Court 4 Round: 26
| ITF Singapore F2 | 2018/05/22 03:50 | Frawley, James v Niki, Takuto | 6-2,4-6,1-6 |
| Challenger Seoul Qual | 2018/04/28 03:05 | Kang, Hogi v Niki, Takuto | 6-7,6-2,0-6 |
| ITF Japan F6 | 2018/04/11 01:00 | Makoto Ochi v Niki, Takuto | 7-5,6-3 |
| ITF Japan F5 | 2018/04/04 01:00 | Niki, Takuto v Ehara, Hiroyasu | 2-6,6-2,4-6 |
| ITF Japan F5 | 2018/04/02 05:40 | Niki, Takuto v Yuta Shimizu | 6-2,6-4 |
| ITF Japan F4 | 2018/03/28 02:40 | Niki, Takuto v Naoki Tajima | 5-7,6-7 |
| ITF Japan F3 | 2018/03/19 03:15 | Shinji Hazawa v Niki, Takuto | 7-5,6-3 |
| ITF Japan F2 | 2018/03/13 02:00 | Kaito Uesugi v Niki, Takuto | 6-0,6-3 |
| ITF Singapore F2 | 2018/05/22 06:45 | Goveas, Aryan v Hu, Nicholas S | 3-6,6-1,5-7 |
| ITF Singapore F1 | 2018/05/18 03:30 | Hu, Nicholas S v Moritani, Soichiro | 3-6,1-6 |
| ITF Singapore F1 | 2018/05/17 03:00 | Hu, Nicholas S v Nolan, Daniel | 6-4,6-2 |
| ITF Singapore F1 | 2018/05/16 04:15 | Hu, Nicholas S v Congsup Congcar | 6-3,6-4 |
| ITF Singapore F1 | 2018/05/15 02:00 | Hu, Nicholas S v Abadia, Danielle | 6-0,6-0 |
| ITF USA F10 | 2018/04/12 16:00 | Hu, Nicholas S v Karue Sell | 2-6,2-6 |
| ITF USA F10 | 2018/04/11 18:45 | Hu, Nicholas S v Lakat, Florian | 6-4,5-7,6-3 |
| ITF USA F9 | 2018/04/05 17:20 | Sebastian Fanselow v Hu, Nicholas S | 5-7,6-3,6-1 |