| event | round | table | player one | result | player two |
| Grand Prix Matsuyama 2005 | 6 | 46 | Yasooka, Shota (1729) | Won 2-1 | Nakajima, Chikara (1701) |
| Pro Tour Geneva 2007 | 5 | 49 | Yasooka, Shota (1888) | Lost 0-2 | Nakajima, Chikara (1538) |
| Pro Tour Austin 2009 | 15 | 19 | Yasooka, Shota (1829) | Won 2-1 | Nakajima, Chikara (1865) |
| Grand Prix Singapore 2011 | 15 | 1 | Yasooka, Shota (2128) | ID | Nakajima, Chikara (1924) |
| Grand Prix Brisbane 2011 | 11 | 10 | Yasooka, Shota (2104) | Won 2-1 | Nakajima, Chikara (1997) |