| event | round | table | player one | result | player two |
| Grand Prix Shanghai 2011 | 14 | 17 | Endo, Ryota (1818) | ID | Nonaka, Kentarou (1944) |
| Grand Prix Shanghai 2011 | Q | Endo, Ryota (1798) | Won 2-1 | Nonaka, Kentarou (1926) | |
| Grand Prix Yokohama 2012 | 4 | 1 | Endo, Ryota (1886) | Lost 0-2 | Nonaka, Kentarou (1720) |