| event | round | table | player one | result | player two |
| Pro Tour Los Angeles 2005 | 15 | 30 | Herberholz, Mark (1883) | Won 2-0 | Ootsuka, Koutarou (1807) |
| Grand Prix Montreal 2007 | 5 | 19 | Herberholz, Mark (2103) | Lost 0-2 | Ootsuka, Koutarou (1917) |
| 2007 World Championship | 6 | 37 | Herberholz, Mark (2044) | Lost 1-2 | Ootsuka, Koutarou (2000) |
| Pro Tour San Diego 2010 | 14 | 60 | Herberholz, Mark (1723) | Won 2-0 | Ootsuka, Koutarou (1917) |