2015 GAC Group World Tour, Belgium Open | ITTF rankings: Oikawa Mizuki 1979, Sambe Kohei 2049 |
2015 GAC Group World Tour, Austrian Open | ITTF rankings: Oikawa Mizuki 1979, Sambe Kohei 2049 |
2015 GAC Group World Tour, Japan Open | ITTF rankings: Oikawa Mizuki 1911, Sambe Kohei 2022 |
2015 GAC Group World Tour, Belarus Open | ITTF rankings: Oikawa Mizuki 1799, Sambe Kohei 2053 |