Stadium: Swiss Post Court Round: 25 Ground: Clay
| ITF Kazakhstan F4 Qual | 2017/04/16 09:25 | Vladimir Korolev v Denis Klok | 7-6,1-6,2-6 |
| ITF M15 Brussels | 2019/08/02 09:00 | Nick Hardt v Vladimir Korolev | 6-4,4-6,6-1 |
| ITF M15 Brussels | 2019/08/01 14:15 | Martin Van Der Meerschen v Vladimir Korolev | 5-7,3-6 |
| ITF M15 Brussels | 2019/07/30 13:05 | Vladimir Korolev v James Frawley | 6-4,6-3 |
| ITF M15 Antalya | 2019/05/23 07:15 | Ergi Kirkin v Vladimir Korolev | 4-6,6-1,6-2 |
| ITF M15 Antalya | 2019/05/22 07:15 | Vladimir Korolev v Jesper De Jong | 3-6,6-1,6-4 |
| ITF M15 Antalya | 2019/05/17 07:45 | Victor Vlad Cornea v Vladimir Korolev | 6-4,6-4 |
| ITF M15 Antalya | 2019/05/16 07:15 | Vladimir Korolev v Mircea-Alexandru Jecan | 3-6,7-6,6-1 |
| ITF M15 Antalya | 2019/05/15 11:35 | Matthew Dellavedova v Vladimir Korolev | 7-5,2-6,2-6 |
| ITF M15 Brussels | 2019/07/30 14:45 | Jesper De Jong v Denis Klok | 6-3,5-7,6-2 |
| ITF M15 Parnu | 2019/07/18 13:40 | Vladimir Ivanov v Denis Klok | 7-6,6-3 |
| ITF M15 Parnu | 2019/07/17 10:20 | Mikhail Korovin v Denis Klok | 7-6,4-6,1-6 |
| ITF M15 Vilnius | 2019/07/13 08:00 | Ivan Nedelko v Denis Klok | 3-6,6-2,6-4 |
| ITF M15 Vilnius | 2019/07/12 10:55 | Georgii Kravchenko v Denis Klok | 1-6,2-6 |
| ITF M15 Vilnius | 2019/07/11 10:20 | Denis Klok v Bogdan Bobrov | 6-4,6-2 |
| ITF M15 Vilnius | 2019/07/09 13:10 | Denis Klok v Karl Friberg | 6-2,6-3 |
| ITF M15 Belgrade | 2019/07/03 11:55 | Denis Klok v Bogdan Pavel | 6-4,4-6,4-6 |