| event | round | table | player one | result | player two |
| Grand Prix Houston 2010 | 13 | 8 | Chapin, Patrick (1982) | Lost 1-2 | Sharfman, David (1653) |
| Pro Tour Amsterdam 2010 | 6 | 167 | Chapin, Patrick (1889) | Lost 1-2 | Sharfman, David (1878) |
| 2011 World Championship | 5 | 1 | Chapin, Patrick (2015) | Won 2-0 | Sharfman, David (1915) |
| Pro Tour Dragon's Maze | 12 | 5 | Chapin, Patrick (1925) | Lost 1-2 | Sharfman, David (2040) |