| Swiss Open WD Qual | 2018/01/18 10:30 | Richard Kuhl v Joonas Korhonen | W | 0-2 |
| Croatian Int. | 2019/04/19 08:30 | Joonas Korhonen v Martin Bundgaard | L | 0-2 |
| Finnish Open Qual | 2019/04/04 07:45 | Joonas Korhonen v Abhinav Manota | W | 2-0 |
| Swiss Open WD Qual | 2019/03/07 10:30 | Alvaro Vazquez v Joonas Korhonen | L | 2-0 |
| Swiss Open WD Qual | 2019/01/17 16:30 | Joonas Korhonen v Henri Hurskainen | L | 1-2 |
| Swiss Open WD Qual | 2019/01/10 15:00 | Johnnie Torjussen v Joonas Korhonen | L | 2-0 |
| Swiss Open WD Qual | 2019/01/10 07:00 | Joonas Korhonen v Felix Hammes | W | 2-0 |
| Giraldilla Int. XD | 2018/11/29 12:30 | Luis Enrique Penalver v Joonas Korhonen | L | 2-1 |
| Giraldilla Int. XD | 2018/10/30 18:00 | Kean Yew Loh v Joonas Korhonen | L | 2-0 |
| Dutch Int. Qual | 2019/04/11 08:15 | Richard Kuhl v Tobias Mund | W | 2-0 |
| Swiss Open WD Qual | 2019/01/17 09:30 | Andraz Krapez v Richard Kuhl | L | 2-1 |
| Swiss Open WD Qual | 2018/11/28 17:00 | Richard Kuhl v Joshua Apiliga | W | 2-0 |
| Polish Int. | 2018/09/20 13:25 | Richard Kuhl v Wei Chi Liu | L | 0-2 |
| Polish Int. | 2018/09/20 09:55 | Richard Kuhl v Julian Edhofer | W | 2-0 |
| Swiss Open WD Qual | 2018/08/29 11:30 | Richard Kuhl v Marcus Loo | W | 2-0 |
| Swiss Open WD Qual | 2018/08/29 09:00 | Ivan Medynskiy v Richard Kuhl | W | 1-2 |
| Swiss Open WD Qual | 2018/01/18 10:30 | Richard Kuhl v Joonas Korhonen | L | 0-2 |