| WTT Feeder - Düsseldorf | 04/10 16:45 | 5 | Yi-Hsin Feng v Steffen Mengel | L | 3-0 | |
| WTT Feeder Otocec | 03/30 11:35 | 5 | Steffen Mengel v Gyuhyeon Park | L | 0-3 | |
| WTT Feeder Otocec | 03/29 15:00 | 6 | Steffen Mengel v Darius Movileanu | W | 3-0 | |
| WTT Feeder Manchester | 02/03 13:10 | 4 | Matteo Mutti v Steffen Mengel | L | 3-2 | |
| WTT Feeder Manchester | 02/02 12:00 | 5 | Louis Price v Steffen Mengel | W | 0-3 | |
| WTT Feeder Corpus Christi | 01/18 17:25 | 2 | Steffen Mengel v Kirill Gerassimenko | L | 1-3 | |
| WTT Feeder Corpus Christi | 01/18 01:20 | 3 | Steffen Mengel v Ricardo Walther | W | 3-2 | |
| WTT Feeder Corpus Christi | 01/18 00:55 | - | Steffen Mengel v Ricardo Walther | W | 3-2 | |
| WTT Feeder Corpus Christi | 01/17 19:00 | 4 | Steffen Mengel v Cedric Nuytinck | W | 3-0 | |
| WTT Feeder Corpus Christi | 01/17 01:20 | 5 | Steffen Mengel v Mishel Levinski | W | 3-0 | |
| WTT Feeder Düsseldorf III | 12/01 17:25 | - | Steffen Mengel v Dingshuo Liu | W | 3-1 | |
| WTT Feeder Düsseldorf III | 12/01 10:25 | 2 | Kai Zhou v Steffen Mengel | W | 1-3 |