| Slovenia Int. | 2019/05/16 08:30 | Kalle Koljonen v Kartikey Gulshan Kumar | W | 2-1 |
| Denmark Int. | 2019/05/10 09:00 | Jan O Jorgensen v Kalle Koljonen | W | 0-2 |
| Finnish Open | 2019/04/05 16:45 | Chun-Yi Lin v Kalle Koljonen | L | 2-0 |
| Finnish Open | 2019/04/05 09:00 | Maxime Moreels v Kalle Koljonen | W | 0-2 |
| Swiss Open | 2019/03/13 09:50 | Kalle Koljonen v Ygor Coelho | L | 1-2 |
| Swiss Open - ženská štvorhra - kvalifikácia | 2019/03/12 14:20 | Koki Watanabe v Kalle Koljonen | W | 0-2 |
| Swiss Open - ženská štvorhra - kvalifikácia | 2019/03/12 11:10 | Kalle Koljonen v Luka Wraber | W | 2-0 |
| Swiss Open - ženská štvorhra - kvalifikácia | 2019/02/26 09:00 | Rasmus Messerschmidt v Kalle Koljonen | L | 2-1 |
| Denmark Int. | 2019/05/11 09:00 | Subhankar Dey v Sergey Sirant | L | 2-0 |
| Denmark Int. | 2019/05/10 16:30 | Minoru Koga v Sergey Sirant | W | 1-2 |
| Finnish Open | 2019/04/06 08:00 | Chun-Yi Lin v Sergey Sirant | L | 2-0 |
| Orleans Masters | 2019/03/19 19:20 | Sergey Sirant v Alex Lane | L | 0-2 |
| Estonian Int. | 2019/01/12 09:00 | Sergey Sirant v Arnaud Merkle | L | 0-2 |
| Giraldilla Int. XD | 2018/12/14 16:00 | Sergey Sirant v Nhat Nguyen | L | 0-2 |
| Giraldilla Int. XD | 2018/11/21 08:00 | Sai Praneeth B. v Sergey Sirant | L | 2-0 |
| Giraldilla Int. XD | 2018/08/08 10:25 | Xiaodong Sheng v Sergey Sirant | L | 2-0 |