Stadium: Court 6 Round: 44
| Challenger Leon | 2018/04/26 18:00 | Christopher Eubanks v Dennis Novikov | 6-3,6-3 |
| Challenger Leon | 2018/04/24 21:05 | Bradley Mousley v Dennis Novikov | 3-6,7-5,4-6 |
| Challenger Guadalajara | 2018/04/16 18:00 | Dennis Novikov v Pedja Krstin | 6-7,3-6 |
| ATP Houston Qual | 2018/04/08 16:00 | Miomir Kecmanovic v Dennis Novikov | 6-4,5-7,6-3 |
| ATP Houston Qual | 2018/04/07 17:00 | Evan King v Dennis Novikov | 5-7,7-6,4-6 |
| Challenger Le Gosier | 2018/03/27 22:10 | Dennis Novikov v Gastao Elias | 6-7,4-6 |
| ATP Miami Qual | 2018/03/19 14:00 | Mirza Basic v Dennis Novikov | 6-4,6-4 |
| ATP Indian Wells Qual | 2018/03/07 00:55 | Yuki Bhambri v Dennis Novikov | 7-5,7-5 |
| Challenger Busan | 2018/05/17 05:20 | Filip Peliwo v Duckhee Lee | 4-6,6-2,6-4 |
| Challenger Busan | 2018/05/14 07:45 | Yusuke Takahashi v Duckhee Lee | 2-6,1-6 |
| Challenger Gimcheon | 2018/05/08 06:55 | Duckhee Lee v Luke Saville | 7-6,2-6,3-6 |
| Challenger Seoul | 2018/05/01 07:05 | Tatsuma Ito v Duckhee Lee | 6-1,6-3 |
| Challenger Anning | 2018/04/26 04:35 | Mukund Sasikumar v Duckhee Lee | 6-2,7-6 |
| Challenger Anning | 2018/04/24 06:20 | Duckhee Lee v Rui-Xuan Wang | 6-2,7-6 |
| Challenger Nanchang | 2018/04/16 03:00 | Duckhee Lee v Jordan Thompson | 2-6,1-6 |
| ITF Japan F5 | 2018/04/03 05:35 | Duckhee Lee v Yuta Kawahashi | 6-7,6-7 |