| WTT Contender Mendoza | 05/31 18:15 | 4 | Steffen Mengel v Tomislav Pucar | L | 2-3 | |
| WTT Contender Mendoza | 05/30 19:05 | 5 | Alberto Mino v Steffen Mengel | W | 1-3 | |
| WTT Contender Rio De Janeiro | 05/25 21:45 | 2 | Jaehyun An v Steffen Mengel | L | 3-0 | |
| WTT Contender Rio De Janeiro | 05/25 16:30 | 3 | Luka Mladenovic v Steffen Mengel | W | 1-3 | |
| WTT Contender Rio De Janeiro | 05/24 17:55 | 4 | Jules Rolland v Steffen Mengel | W | 1-3 | |
| WTT Contender Rio De Janeiro | 05/23 22:55 | 5 | Steffen Mengel v Tomokazu Harimoto | W | 3-2 | |
| WTT Feeder Dusseldorf | 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 |