| event | round | table | player one | result | player two |
| Pro Tour Honolulu 2006 | 3 | 108 | Summersberger, Helmut (1894) | Won 2-1 | Ishida, Itaru (1919) |
| Pro Tour Prague 2006 | 6 | 63 | Summersberger, Helmut (2096) | Won 2-0 | Ishida, Itaru (1893) |
| Pro Tour Yokohama 2007 | 14 | 22 | Summersberger, Helmut (1901) | Lost 1-2 | Ishida, Itaru (1887) |