| ITF Vietnam F4 | 2018/10/20 03:00 | Cheong Hwi Kim v Shamirul S Mohd Adam Das | 6-4,3-6,2-6 |
| ITF Thailand F6 | 2018/10/06 03:30 | David Agung Susanto v Cheong Hwi Kim | 6-2,6-4 |
| ITF Thailand F5 | 2018/09/29 02:30 | Daisuke Sumizawa v Cheong Hwi Kim | 6-4,6-1 |
| ITF Korea F6 | 2018/08/28 02:00 | Ku Keon Kang v Cheong Hwi Kim | 6-0,6-0 |
| ITF Korea F5 | 2018/08/19 02:00 | Sung Jun Park v Cheong Hwi Kim | 6-0,6-2 |
| ITF Korea F5 | 2018/08/18 03:00 | Edward Lewis v Cheong Hwi Kim | 2-6,0-6 |
| ITF Korea F4 | 2018/08/13 01:00 | Cheong Hwi Kim v Jeong Heon Lee | 3-6,6-3,3-6 |
| ITF Korea F4 | 2018/08/12 02:00 | Ang Ji v Cheong Hwi Kim | 1-6,1-6 |
| Challenger Istanbul | 2018/09/09 09:00 | Vladimir Polyakov v Tobias Simon | 0-6,3-6 |
| Challenger Istanbul | 2018/09/08 07:00 | S Mert Ozdemir v Vladimir Polyakov | 6-7,1-6 |
| ITF Russia F8 | 2018/08/27 07:00 | Vladimir Polyakov v Alexey Baryshev | 6-3,6-4 |
| ITF Russia F8 Qual | 2018/08/26 07:00 | Vladimir Polyakov v Daniil Kim | 3-6,6-1,6-4 |
| ITF Russia F6 | 2018/08/14 08:10 | Vladimir Polyakov v Shalva Dzhanashia | 2-6,2-6 |
| ITF Russia F4 | 2018/07/31 08:30 | Vladimir Polyakov v Sagadat Ayap | 3-6,3-6 |
| Challenger Fergana Qual | 2018/06/16 05:55 | Saida'lo Saidkarimov v Vladimir Polyakov | 6-4,6-4 |
| ITF Uzbekistan F4 | 2018/06/05 04:00 | Vladimir Polyakov v Mikhail Fufygin | 0-6,2-6 |