event | round | table | player one | result | player two |
Grand Prix Nagoya 2004 | 15 | 20 | Okada, Wataru (1595) | Won 2-0 | Chai, Royce Ming Huang (1856) |
Grand Prix Matsuyama 2005 | 11 | 30 | Okada, Wataru (1662) | Won 2-1 | Chai, Royce Ming Huang (1819) |
Grand Prix Niigata 2005 | 9 | 17 | Okada, Wataru (1761) | Lost 0-2 | Chai, Royce Ming Huang (1818) |