Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Shenzhen 2 Qual | 2017/10/30 03:00 | Naoki Nakagawa v Miliaan Niesten | 4-6,0-6 |
| Challenger Shenzhen 2 Qual | 2017/10/29 04:10 | N.Sriram Balaji v Naoki Nakagawa | 4-6,6-3,3-6 |
| Challenger Shenzhen 2 Qual | 2017/10/28 05:30 | Christopher Rungkat v Naoki Nakagawa | 2-6,6-4,3-6 |
| Challenger Suzhou Qual | 2017/10/22 04:00 | Naoki Nakagawa v Riccardo Ghedin | 1-6,3-6 |
| ITF USA F33 | 2017/10/11 15:00 | Naoki Nakagawa v Alexei Popyrin | 6-2,6-7,6-7 |
| Challenger Stockton Qual | 2017/09/30 19:35 | Ruan Roelofse v Naoki Nakagawa | 6-7,6-2,6-1 |
| ITF USA F32 | 2017/09/27 17:00 | Karue Sell v Naoki Nakagawa | 6-3,7-5 |
| ITF USA F31 | 2017/09/20 19:10 | Ronnie Schneider v Naoki Nakagawa | 6-2,6-3 |
| Challenger Suzhou | 2017/10/24 05:40 | Duckhee Lee v Hubert Hurkacz | 6-4,4-6,6-7 |
| Challenger Ningbo | 2017/10/18 04:30 | Zhe Li v Duckhee Lee | 6-2,6-4 |
| Challenger Ningbo | 2017/10/16 04:05 | Duckhee Lee v Taylor Fritz | 6-3,3-6,6-3 |
| Challenger Kaohsiung | 2017/10/03 10:00 | Jason Jung v Duckhee Lee | 3-6,6-2,7-6 |
| Challenger Gwangju | 2017/09/22 02:00 | Duckhee Lee v Matthias Bachinger | 3-6,5-7 |
| Challenger Gwangju | 2017/09/21 02:00 | Duckhee Lee v Alessandro Bega | 6-4,6-3 |
| Challenger Gwangju | 2017/09/19 04:45 | Duckhee Lee v Yuya Kibi | 7-6,6-2 |
| Challenger Shanghai | 2017/09/14 02:30 | Duckhee Lee v Ze Zhang | 3-6,6-7 |