event | round | table | player one | result | player two |
Grand Prix Kyoto 2007 | 9 | 12 | Iyanaga, Junya (1720) | Won 2-1 | Kitayama, Masaya (1759) |
Grand Prix Shizuoka 2008 | 7 | 226 | Iyanaga, Junya (1944) | Lost 1-2 | Kitayama, Masaya (1829) |
Grand Prix Singapore 2009 | 12 | 7 | Iyanaga, Junya (1964) | Lost 0-2 | Kitayama, Masaya (1880) |
Grand Prix Bangkok 2009 | 11 | 15 | Iyanaga, Junya (1949) | Lost 0-2 | Kitayama, Masaya (1877) |