| Bulgaria Liga Pro | 2021/08/07 04:00 | Andrei Smirnov v Korol, Ivan | 0-6,1-6 |
| Bulgaria Liga Pro | 2021/08/07 04:00 | Andrei Smirnov v Korol, Ivan | 0-6,1-6 |
| Bulgaria Liga Pro | 2021/06/27 06:00 | Korol, Ivan v Alexey Nikiforov | 2-6,4-6 |
| Bulgaria Liga Pro | 2021/06/27 04:30 | Alexey Nikiforov v Korol, Ivan | 3-6,6-2,10-6 |
| Bulgaria Liga Pro | 2021/06/25 06:00 | Vladimir Kulikov v Korol, Ivan | 4-6,6-7 |
| Bulgaria Liga Pro | 2021/06/25 04:30 | Korol, Ivan v Vladimir Kulikov | 4-6,6-4,10-6 |
| Bulgaria Liga Pro | 2021/06/23 04:30 | Korol, Ivan v Alexey Nikiforov | 6-2,4-6,9-11 |
| ITF Turkey F31 Qual | 2017/08/20 10:00 | Korol, Ivan v Bora Sengul | 1-6,2-6 |
| ITF Turkey F31 Qual | 2017/08/19 12:00 | Usakli, Oezen v Korol, Ivan | 2-6,5-7 |
| Bulgaria Liga Pro | 2021/08/07 04:00 | Andrei Smirnov v Korol, Ivan | 0-6,1-6 |
| Bulgaria Liga Pro | 2021/08/05 06:00 | Mikhail Suvorov v Andrei Smirnov | 1-6,6-7 |
| Bulgaria Liga Pro | 2021/08/05 04:30 | Andrei Smirnov v Mikhail Suvorov | 6-0,6-3 |
| Bulgaria Liga Pro | 2021/08/01 06:00 | Andrei Smirnov v Mikhail Suvorov | 7-5,6-1 |
| Bulgaria Liga Pro | 2021/08/01 04:30 | Mikhail Suvorov v Andrei Smirnov | 3-6,5-7 |
| Bulgaria Liga Pro | 2021/07/30 06:00 | Andrei Smirnov v Vladimir Kulikov | 6-2,6-7,4-10 |
| Bulgaria Liga Pro | 2021/07/30 04:30 | Vladimir Kulikov v Andrei Smirnov | 1-6,2-6 |
| Bulgaria Liga Pro | 2021/07/28 06:00 | Vladimir Kulikov v Andrei Smirnov | 6-1,6-0 |