| event | round | table | player one | result | player two |
| Grand Prix Niigata 2009 | 6 | 60 | Itou, Kouei (1516) | Lost 0-2 | Yasooka, Shota (1757) |
| 2010 World Championship | 10 | 86 | Itou, Kouei (1563) | Lost 0-2 | Yasooka, Shota (1979) |
| Pro Tour Nagoya 2011 | 9 | 45 | Itou, Kouei (1717) | Won 2-1 | Yasooka, Shota (2147) |
| Grand Prix Shizuoka 2013 | 4 | 89 | Itou, Kouei (1572) | Lost 0-2 | Yasooka, Shota (2068) |