, 4-2.
| event |
round |
table |
player one |
result |
player two |
| Pro Tour Amsterdam 2004 | 14 | 14 | Ishii, Taisuke (1617) | Won 2-1 | Saito, Tomoharu (1649) |
| Grand Prix Kobe 2009 | 8 | 56 | Ishii, Taisuke (1756) | Lost 0-2 | Saito, Tomoharu (2044) |
| Pro Tour San Juan 2010 | 15 | 26 | Ishii, Taisuke (1884) | Won 2-1 | Saito, Tomoharu (1958) |
| Grand Prix Kitakyushu 2013 | 6 | 13 | Ishii, Taisuke (1822) | Won 2-1 | Saito, Tomoharu (1863) |
| Pro Tour Rivals of Ixalan | 4 | 178 | Ishii, Taisuke (1776) | Won 2-1 | Saito, Tomoharu (2165) |
| Grand Prix Shizuoka 2018 (legacy) | 13 | 39 | Ishii, Taisuke (1920) | Lost 1-2 | Saito, Tomoharu (1929) |