| event | round | table | player one | result | player two |
| Grand Prix Singapore 2009 | 8 | 7 | Iyanaga, Junya (1940) | Lost 0-2 | Watanabe, Yuuya (1871) |
| Grand Prix Kobe 2009 | 11 | 26 | Iyanaga, Junya (2010) | Lost 1-2 | Watanabe, Yuuya (1962) |
| 2012 Players Championship | 2 | 1 | Iyanaga, Junya (2107) | Won 2-0 | Watanabe, Yuuya (2132) |
| 2012 Players Championship | 9 | 1 | Iyanaga, Junya (2108) | Lost 1-2 | Watanabe, Yuuya (2095) |