Bob Maher is tied in the series against
Darwin Kastle, 3-3.
| event |
round |
table |
player one |
result |
player two |
| Pro Tour Los Angeles 1998 | 11 | 12 | Maher, Bob (1572) | Lost 0-0 | Kastle, Darwin (1590) |
| 1999 World Championship | 18 | 27 | Maher, Bob (1672) | Won 0-0 | Kastle, Darwin (1731) |
| Grand Prix Denver 2001 | 4 | 41 | Maher, Bob (1954) | Lost 0-2 | Kastle, Darwin (1821) |
| Pro Tour Houston 2002 | 12 | 1 | Maher, Bob (2100) | Won 2-0 | Kastle, Darwin (1935) |
| Pro Tour Yokohama 2003 Masters | S | | Maher, Bob (1958) | Won 2-0 | Kastle, Darwin (1997) |
| Pro Tour Yokohama 2003 | 1 | 43 | Maher, Bob (1996) | Lost 0-2 | Kastle, Darwin (1978) |