| WTT Contender - Tunis - Qualifikation | 2022/08/02 14:00 | Mizuki Oikawa v Yuto Kizukuri | L | 0-3 |
| WTT Contender - Tunis | 2022/08/01 15:00 | Mizuki Oikawa v Maciej Kolodziejczyk | W | 3-1 |
| WTT Feeder Ototec | 2022/06/24 18:25 | Mizuki Oikawa v Seungmin Cho | L | 2-3 |
| WTT Feeder Ototec | 2022/06/24 10:50 | Jakub Dyjas v Mizuki Oikawa | W | 1-4 |
| WTT Feeder Ototec | 2022/06/23 18:20 | Mizuki Oikawa v Borgar Haug | W | 4-0 |
| WTT Contender - Zagreb - Qualifikation | 2022/06/14 17:10 | Mizuki Oikawa v Yan-Cheng Huang | L | 2-3 |
| WTT Contender - Zagreb - Qualifikation | 2022/06/13 17:35 | Mizuki Oikawa v Jeet Chandra | W | 3-2 |
| WTT Feeder Westchester | 2022/05/14 22:15 | Mizuki Oikawa v Benedikt Duda | L | 2-3 |