| WTT Feeder Cappadocia XD | 09/18 07:45 | 4 | Gunduz/Altinkaya v Okano/Idesawa | L | 2-3 | |
| WTT Feeder Istanbul XD | 09/13 07:45 | 4 | Gunduz/Altinkaya v Okano/Idesawa | L | 0-3 | |
| WTT Contender Zagreb XD | 06/26 09:00 | 4 | Gunduz/Altinkaya v Chen/Qian | L | 1-3 | |
| WTT Contender Zagreb XD Quals | 06/25 11:25 | 3 | Gunduz/Altinkaya v Bardet/Zarif | W | 3-2 | |
| World Championship XD | 05/19 13:00 | 5 | Ionescu/Samara v Gunduz/Altinkaya | L | 3-1 | |
| WTT Contender Tunis XD Quals | 04/24 13:20 | - | Huang/Ding v Gunduz/Altinkaya | L | 3-1 | |
| WTT Feeder Cappadocia XD | 02/20 16:30 | 2 | Xue/Han v Altinkaya/Gunduz | L | 3-0 | |
| WTT Feeder Cappadocia XD | 02/20 07:00 | 3 | Gunduz/Altinkaya v Kharki/Romanovskaya | W | 3-1 | |
| WTT Feeder Cappadocia XD | 02/19 06:00 | 4 | Gunduz/Altinkaya v Kulczycki/Wielgos | W | 3-2 | |
| WTT Feeder Cagliari XD | 10/25 08:00 | 3 | Ho/Yoo v Gunduz/Altinkaya | L | 3-0 | |
| WTT Feeder Cagliari XD | 10/24 08:40 | 4 | Arlia/Piccolin v Gunduz/Altinkaya | W | 0-3 | |
| European Champs XD | 10/16 16:20 | 7 | Gunduz/Altinkaya v Franziska/Kaufmann | L | 1-3 |