| ITTF Challenge, Spanish Open 2020, MS | 2020/02/06 19:00 | Mizuki Oikawa v Hiroto Shinozuka | W | 4-0 |
| Japon - T League | 2022/02/13 03:25 | Mizuki Oikawa v Kakeru Sone | L | 1-3 |
| Japon - T League | 2022/02/12 05:41 | Mizuki Oikawa v Masataka Morizono | L | 1-3 |
| Japon - T League | 2022/02/11 05:25 | Kenta Matsudaira v Mizuki Oikawa | W | 2-3 |
| Japon - T League | 2021/12/25 09:30 | Kakeru Sone v Mizuki Oikawa | L | 3-1 |
| Japon - T League | 2021/10/24 08:20 | Mizuki Oikawa v Satoshi Aida | W | 3-0 |
| Japon - T League | 2021/10/23 04:30 | Mizuki Oikawa v Kenta Matsudaira | W | 3-1 |
| Japon - T League | 2021/10/10 03:30 | Mizuki Oikawa v Taimu Arinobu | W | 3-0 |
| Japon - T League | 2021/10/09 05:00 | Mizuki Oikawa v Yuma Tanigaki | W | 3-0 |
| Japon - T League | 2022/02/13 04:11 | Tomokazu Harimoto v Hiroto Shinozuka | L | 3-2 |
| WTT Contender Novo Mesto | 2021/11/09 17:00 | Felix Lebrun v Hiroto Shinozuka | L | 3-0 |
| WTT Contender Novo Mesto | 2021/11/09 08:35 | Hiroto Shinozuka v Khalid Assar | W | 3-2 |
| WTT Contender Lasko | 2021/11/05 11:40 | Kirill Gerassimenko v Hiroto Shinozuka | L | 3-0 |
| WTT Contender Lasko | 2021/11/03 12:40 | Hiroto Shinozuka v Ort, Kilian | W | 3-2 |
| WTT Contender Lasko | 2021/11/02 17:35 | Gaston Alto v Hiroto Shinozuka | W | 0-3 |
| WTT Contender Lasko | 2021/11/02 09:10 | Lilian Bardet v Hiroto Shinozuka | W | 0-3 |
| Japon - T League | 2021/10/24 08:40 | Oshima, Yuya v Hiroto Shinozuka | W | 0-3 |