| event | round | table | player one | result | player two |
| Grand Prix Yokohama 2013 | 10 | 27 | Kumagai, Riku (1743) | Won 2-0 | Ikawa, Yoshihiko (1802) |
| Pro Tour Eldritch Moon | 11 | 22 | Kumagai, Riku (2043) | Won 2-0 | Ikawa, Yoshihiko (1838) |
| Grand Prix Hong Kong 2018 | 5 | 114 | Kumagai, Riku (2039) | Lost 0-2 | Ikawa, Yoshihiko (1811) |
| Kaldheim Championship | 1 | 30 | Kumagai, Riku (2063) | Lost 0-2 | Ikawa, Yoshihiko (1851) |
| Strixhaven Championship | 6 | 17 | Kumagai, Riku (2124) | Won 2-0 | Ikawa, Yoshihiko (1984) |