| Hungarian Int. | 2019/11/01 12:00 | Kalle Koljonen v Sirant, Sergey | L | 1-2 |
| Azerbaïdjan Int. | 2019/06/07 13:30 | Kalle Koljonen v Sirant, Sergey | W | 2-0 |
| Open d'Inde | 2022/01/11 06:30 | Kartikey Gulshan Kumar v Kalle Koljonen | W | 0-2 |
| World Championships | 2021/12/14 09:00 | Mark Caljouw v Kalle Koljonen | L | 2-1 |
| World Championships | 2021/12/12 09:40 | Munoz, Lino v Kalle Koljonen | W | 0-2 |
| Dutch Open | 2021/10/16 08:20 | Kalle Koljonen v Pablo Abian | L | 1-2 |
| Dutch Open | 2021/10/15 12:00 | Mads Christophersen v Kalle Koljonen | W | 0-2 |
| Dutch Open | 2021/10/14 07:40 | Kalle Koljonen v Jayaram, Ajay | W | 2-1 |
| Sudirman Cup | 2021/09/29 13:30 | Srikanth Kidambi v Kalle Koljonen | L | 2-1 |
| Sudirman Cup | 2021/09/26 07:20 | Lu, G. Z. v Kalle Koljonen | L | 2-0 |
| Open d'Inde | 2022/01/11 05:10 | June Wei Cheam v Sirant, Sergey | W | 0-2 |
| World Championships | 2021/12/13 08:40 | Sirant, Sergey v Kanta Tsuneyama | L | 1-2 |
| Olympics 2020 - Men | 2021/07/28 09:00 | Anthony Sinisuka Ginting v Sirant, Sergey | L | 2-0 |
| Olympics 2020 - Men | 2021/07/27 01:00 | Sirant, Sergey v Krausz, Gergely | W | 2-0 |
| Portuguese Int. | 2021/05/07 14:50 | Lane, Alex v Sirant, Sergey | L | 2-1 |
| Championnat d'Europe | 2021/04/28 11:40 | Sirant, Sergey v Leverdez, Brice | L | 1-2 |
| Orléans Masters | 2021/03/24 11:00 | Xiaodong Sheng v Sirant, Sergey | L | 2-1 |
| Orléans Masters | 2021/03/23 17:45 | Kim Bruun v Sirant, Sergey | W | 1-2 |