| Swiss Open WD Qual | 2018/04/12 14:55 | Karl Thor S'gaard v Joonas Korhonen | W | 0-2 |
| Swiss Open WD Qual | 2018/03/08 14:00 | Valentin Singer v Joonas Korhonen | W | 1-2 |
| Swiss Open WD Qual | 2018/03/08 10:30 | Joonas Korhonen v Douglas Lidman | W | 2-0 |
| Giraldilla Int. XD | 2018/01/19 10:00 | Rosario Maddaloni v Joonas Korhonen | L | 2-0 |
| Swiss Open WD Qual | 2018/01/18 10:30 | Richard Kuhl v Joonas Korhonen | W | 0-2 |
| Swiss Open WD Qual | 2018/01/11 18:15 | Joonas Korhonen v Kevin Arokia Walter | W | 2-1 |
| Swiss Open WD Qual | 2018/01/11 07:30 | Marton Szerecz v Joonas Korhonen | W | 1-2 |
| Polish Int. | 2017/09/22 09:30 | Mihkel Laanes v Joonas Korhonen | W | 0-2 |
| Giraldilla Int. XD | 2017/11/26 14:00 | Lucas Corvee v Toby Penty | W | 0-2 |
| Giraldilla Int. XD | 2017/11/25 12:55 | Toby Penty v Rasmus Gemke | W | 2-1 |
| Indonesia Masters XD | 2017/11/24 17:00 | Henri Aarnio v Toby Penty | W | 0-2 |
| Indonesia Masters XD | 2017/11/24 10:20 | Toby Penty v Nhat Nguyen | W | 2-1 |
| Indonesia Masters XD | 2017/11/23 16:40 | Dinuka Karunaratna v Toby Penty | W | 1-2 |
| Indonesia Masters XD | 2017/11/22 20:30 | Wolfgang Gnedt v Toby Penty | W | 0-2 |
| Swiss Open WD Qual | 2017/09/29 09:00 | Toby Penty v Thomas Rouxel | L | 0-2 |
| Swiss Open WD Qual | 2017/09/28 13:30 | Kieran Merrilees v Toby Penty | W | 1-2 |