| event | round | table | player one | result | player two |
| Grand Prix Kobe 2009 | 6 | 14 | Iyanaga, Junya (1969) | Won 2-1 | Nose, Koji (1862) |
| Grand Prix Chiba 2015 | 15 | 6 | Iyanaga, Junya (2053) | Won 2-1 | Nose, Koji (1951) |
| Grand Prix Chiba 2019 | 3 | 469 | Iyanaga, Junya (1949) | Draw 1-1 | Nose, Koji (1719) |