Head to Head
| World Championships | 2017/08/21 13:00 | Wan Ho Son v Kalle Koljonen | W | 2-0 |
Home History
| Korea Open | 2023/07/19 01:55 | Junpeng Zhao v Wan Ho Son | L | 2-1 |
| Korea Open Qual | 2023/07/18 04:00 | Wan Ho Son v Dong Keun Lee | W | 2-1 |
| Indonesia Masters | 2022/10/22 07:00 | Wan Ho Son v Jun Hao Leong | L | 1-2 |
| Indonesia Masters | 2022/10/21 07:40 | Wan Ho Son v Hongyang Weng | W | 2-0 |
| Indonesia Masters | 2022/10/20 09:00 | Krishna Adi Nugraha v Wan Ho Son | W | 1-2 |
| Indonesia Masters | 2022/10/19 06:20 | Sang Yong Park v Wan Ho Son | W | 0-2 |
| Korea Masters | 2022/04/15 04:20 | Hyeok Jin Jeon v Wan Ho Son | L | 2-0 |
| Korea Masters | 2022/04/14 05:20 | Victor Svendsen v Wan Ho Son | W | 0-2 |
Away History
| World Championships | 2023/08/21 09:25 | H.S. Prannoy v Kalle Koljonen | L | 2-0 |
| US Open | 2023/07/12 16:45 | Kalle Koljonen v Lakshya Sen | L | 0-2 |
| European Games | 2023/06/30 09:30 | Viktor Axelsen v Kalle Koljonen | L | 2-0 |
| European Games | 2023/06/28 07:50 | Anders Antonsen v Kalle Koljonen | L | 2-1 |
| Nantes Int. | 2023/06/17 08:00 | Kalle Koljonen v Collins Valentine Filimon | L | 1-2 |
| Nantes Int. | 2023/06/16 10:40 | Kalle Koljonen v Chong King Lim | W | 2-0 |
| Nantes Int. | 2023/06/16 07:20 | Magnus Johannesen v Kalle Koljonen | W | 1-2 |
| Slovenia Open | 2023/05/21 08:20 | Kalle Koljonen v Su Li Yang | L | 0-2 |