Stadium: Court 4 Round: 26
| ITF China F12 | 2015/08/04 01:30 | Duckhee Lee v Cheng-Yu Yu | 6-2,7-6 |
| ITF China F6 | 2015/05/27 02:00 | Duckhee Lee v Cheng-Yu Yu | 6-4,6-4 |
| Challenger Shanghai | 2017/09/14 02:30 | Duckhee Lee v Ze Zhang | 3-6,6-7 |
| Challenger Shanghai | 2017/09/12 05:10 | Duckhee Lee v Steven Diez | 6-3,6-3 |
| Challenger Zhangjiagang | 2017/09/05 06:35 | Jason Jung v Duckhee Lee | 6-4,6-1 |
| US Open Qual | 2017/08/24 22:05 | Joris De Loore v Duckhee Lee | 6-4,6-2 |
| US Open Qual | 2017/08/23 21:00 | Duckhee Lee v Gerald Melzer | 6-4,6-3 |
| Challenger Vancouver | 2017/08/15 18:00 | Duckhee Lee v Tennys Sandgren | 5-7,6-7 |
| Challenger Jinan | 2017/08/10 03:00 | Ricardas Berankis v Duckhee Lee | 6-1,6-2 |
| Challenger Jinan | 2017/08/09 04:45 | Cheong-Eui Kim v Duckhee Lee | 2-6,1-6 |
| Davis Cup | 2017/09/17 02:00 | Hyeon Chung v Cheng-Yu Yu | 6-4,6-2,6-1 |
| ITF Thailand F6 | 2017/08/14 06:05 | Jumpei Yamasaki v Cheng-Yu Yu | 3-6,7-6,6-4 |
| ITF Thailand F5 | 2017/08/08 04:20 | Jumpei Yamasaki v Cheng-Yu Yu | 6-3,6-7,5-7 |
| ITF Thailand F4 | 2017/08/04 04:30 | Kuan-Yi Lee v Cheng-Yu Yu | 6-4,6-2 |
| ITF Thailand F4 | 2017/08/03 02:30 | Cheng-Yu Yu v Shunrou Takeshima | 6-2,6-1 |
| ITF Thailand F4 | 2017/08/02 06:20 | Cheng-Yu Yu v Rishab Agarwal | 6-4,6-3 |
| ITF Thailand F4 | 2017/08/01 05:40 | Cheng-Yu Yu v Arata Onozawa | 7-5,6-7,6-2 |
| ITF China F12 | 2017/07/10 05:50 | Wishaya Trongcharoenchaikul v Cheng-Yu Yu | 4-6,7-6,7-6 |