event | round | table | player one | result | player two |
Grand Prix Hiroshima 2011 | 4 | 138 | Koyama, Yuji (1570) | Lost 0-2 | Kozaki, Yosuke (1518) |
Grand Prix Kobe 2015 | 7 | 240 | Koyama, Yuji (1699) | Lost 1-2 | Kozaki, Yosuke (1607) |
Grand Prix Chiba 2018 | 6 | 572 | Koyama, Yuji (1797) | Lost 0-2 | Kozaki, Yosuke (1543) |