| Open de Catar - Dobles Mixtos | 11/08 10:20 | 1 | Tiago Apolonia v Joe Seyfried | L | 4-0 | |
| Open de Catar - Dobles Mixtos | 11/08 08:30 | 1 | Joe Seyfried v Fei Xue | L | 1-3 | |
| Open de Catar - Dobles Mixtos | 11/07 18:50 | 1 | Siu Hang Lam v Joe Seyfried | W | 1-3 | |
| Open de Catar - Dobles Mixtos | 11/07 13:50 | - | Vasily Lakeev v Joe Seyfried | W | 0-4 | |
| Open de Catar - Dobles Mixtos | 10/05 15:45 | 1 | Leonardo Mutti v Joe Seyfried | W | 0-4 | |
| Open de Catar - Dobles Mixtos | 06/21 07:40 | 1 | Joe Seyfried v Tianyi Jiang | L | 0-4 | |
| Open de Catar - Dobles Mixtos | 06/20 08:35 | - | Joe Seyfried v Jonghoon Lim | L | 2-3 | |
| Open de Catar - Dobles Mixtos | 06/20 03:58 | - | Joe Seyfried v Tonin Ryuzaki | W | 3-0 | |
| Open de Catar - Dobles Mixtos | 06/14 05:37 | - | Joe Seyfried v Cedric Nuytinck | L | 2-4 | |
| Open de Catar - Dobles Mixtos | 06/14 01:30 | 1 | Joe Seyfried v Andreas Levenko | L | 0-3 | |
| Open de Catar - Dobles Mixtos | 04/26 09:40 | 1 | Joe Seyfried v Erik Paulin | W | 3-1 | |
| Open de Catar - Dobles Mixtos | 11/10 08:35 | - | Joe Seyfried v Man Ho Kwan | L | 0-3 |