| WTT Feeder Dusseldorf | 04/10 16:25 | 5 | Kay Stumper v Daeseong Cho | L | 2-3 | |
| WTT Feeder Dusseldorf | 04/10 11:45 | 6 | Cedric Nuytinck v Kay Stumper | W | 2-3 | |
| WTT Star Contender Goa | 01/25 10:10 | 6 | Jaehyun An v Kay Stumper | L | 3-0 | |
| WTT Star Contender Goa Quals | 01/24 11:45 | - | Mehdi Bouloussa v Kay Stumper | W | 1-3 | |
| WTT Star Contender Goa Quals | 01/23 12:10 | 5 | Kay Stumper v Yan-Cheng Huang | W | 3-2 | |
| WTT Contender Doha Quals | 01/16 14:10 | - | Panagiotis Gionis v Kay Stumper | L | 3-2 | |
| WTT Contender Doha Quals | 01/15 12:40 | - | Kay Stumper v Daniel Habesohn | W | 3-1 | |
| WTT Contender Doha Quals | 01/14 13:25 | - | Kay Stumper v Jeet Chandra | W | 3-1 | |
| Champions League | 12/15 18:55 | - | Kay Stumper v Diogo Carvalho | W | 3-1 | |
| Champions League | 11/19 17:05 | - | Andreas Levenko v Kay Stumper | W | 1-3 | |
| WTT Feeder Otocec | 11/02 15:00 | 6 | Kay Stumper v Jiri Martinko | L | 1-3 | |
| WTT Contender Antalya Quals | 10/18 14:10 | - | Kay Stumper v Eduard Ionescu | L | 1-3 |