| Swiss Open - Kwal. - DD | 2018/02/20 12:10 | Michael Spencer-Smith v Joel Koenig | W | 0-2 |
| Indonesia Masters - GD | 2017/10/31 17:00 | Joel Koenig v Jen Hao Hsu | L | 0-2 |
| Giraldilla Int. XD | 2017/09/22 07:40 | Henri Aarnio v Joel Koenig | L | 2-0 |
| Giraldilla Int. XD | 2017/04/20 10:20 | Joel Koenig v Peter Correl | L | 0-2 |
| Giraldilla Int. XD | 2017/03/09 17:03 | Joel Koenig v Krzysztof Jakowczuk | L | 0-2 |
| Giraldilla Int. XD | 2017/01/12 12:25 | Joel Koenig v Karan Rajan Rajarajan | L | 0-2 |
| Giraldilla Int. XD | 2016/11/30 14:38 | David King v Joel Koenig | L | 2-0 |
| Giraldilla Int. XD | 2016/11/30 11:08 | Martin Drabble v Joel Koenig | W | 0-2 |
| Swiss Open - Kwal. - DD | 2018/02/20 12:10 | Riichi Takeshita v Michal Rogalski | W | 2-0 |
| Macau Open | 2017/11/07 09:00 | Cheuk Yiu Lee v Riichi Takeshita | L | 2-1 |
| Indonesia Masters - GD | 2017/10/12 11:00 | Riichi Takeshita v Mark Caljouw | L | 1-2 |
| Indonesia Masters - GD | 2017/10/11 16:40 | Riichi Takeshita v Rasmus Gemke | W | 2-1 |
| Dutch Open | 2017/10/11 07:40 | Riichi Takeshita v Kan Chao Yu | W | 2-0 |
| Giraldilla Int. XD | 2017/09/19 07:08 | Riichi Takeshita v Kenta Nishimoto | L | 0-2 |
| Giraldilla Int. XD | 2017/09/19 01:09 | Riichi Takeshita v Kim Bruun | W | 2-1 |
| Giraldilla Int. XD | 2017/05/06 05:20 | Riichi Takeshita v Pannawit Thongnuam | L | 0-2 |