| ITF Kazakhstan F5 Qual | 2018/04/22 05:00 | Dorozhkin, Sergey v Beck, Karol | 0-6,0-6 |
| ITF Kazakhstan F4 Qual | 2018/04/16 10:05 | Dubinsky, Vladislav v Dorozhkin, Sergey | 7-5,6-0 |
| ITF Kazakhstan F4 Qual | 2018/04/16 05:25 | Nagimetov, Sundet v Dorozhkin, Sergey | 0-6,1-6 |
| ITF Russia F3 | 2018/03/11 07:00 | Kushnirovich, Gary v Dorozhkin, Sergey | 6-1,6-2 |
| ITF Russia F2 | 2018/03/03 09:00 | Danilov, Savriyan v Dorozhkin, Sergey | 6-2,6-1 |
| Tunisia F3, Singles Qualifying | 2018/01/21 11:00 | Dorozhkin, Sergey v Stefano Baldoni | 1-6,1-6 |
| ITF Tunisia F2 | 2018/01/15 08:00 | Battaglino, Stefano v Dorozhkin, Sergey | 6-0,6-3 |
| ITF Egypt F37 | 2017/12/03 08:30 | Carlone, Nicolas v Dorozhkin, Sergey | 6-2,6-4 |
| ITF Uganda F1 | 2018/04/29 12:00 | Ajeet Rai v Thongoana, Richard | 6-3,6-4 |
| ITF Uganda F1 | 2018/04/28 07:00 | Ajeet Rai v Seeberger, Matt | 6-2,6-4 |
| Auckland, New Zealand, Qualifying | 2018/01/05 21:00 | Ajeet Rai v Taro Daniel | 1-6,2-6 |