| Qatar Open 2019, MS | 2016/11/04 17:45 | Yoshida, Kaii v Karlsson, Mattias | W | 0-3 |
| Qatar Open 2019, MS | 2016/10/28 19:33 | Karlsson, Mattias v Vlasov, Grigory | W | 3-1 |
| Qatar Open 2019, MS | 2016/10/21 18:00 | Karlsson, Mattias v Samsonov, Vladimir | L | 2-4 |
| Qatar Open 2019, MS | 2016/10/20 19:00 | Karlsson, Mattias v Pattantyus, Adam | W | 4-2 |
| Qatar Open 2019, MS | 2016/10/06 19:15 | Karlsson, Mattias v Robert Svensson | L | 0-3 |
| Qatar Open 2019, MS | 2016/09/03 18:45 | Karlsson, Mattias v Karakasevic, Aleksandar | L | 3-4 |
| Qatar Open 2019, MS | 2016/09/03 12:20 | Karlsson, Mattias v Ganghyeon Park | W | 4-2 |
| Qatar Open 2019, MS | 2016/09/02 14:55 | Karlsson, Mattias v Jonghoon Lim | W | 4-1 |
| Qatar Open XD | 2016/11/16 08:22 | Ricardo Walther v Miguel Vilchez | W | 4-0 |
| Qatar Open 2019, MS | 2016/11/12 18:30 | Kenta Matsudaira v Ricardo Walther | L | 4-3 |
| Qatar Open XD | 2016/11/12 12:00 | Ricardo Walther v Maharu Yoshimura | W | 4-0 |
| Qatar Open XD | 2016/11/11 19:30 | Ricardo Walther v Chiang, Hung-Chieh | W | 4-2 |
| Qatar Open XD | 2016/11/11 14:20 | Jakub Dyjas v Ricardo Walther | W | 0-4 |
| Swedish Open (WTP) 2019, MS, Qualification | 2014/11/14 13:00 | Kristian Karlsson v Ricardo Walther | L | 4-0 |