| event | round | table | player one | result | player two |
| Pro Tour London 2005 | 14 | 37 | Sonne, Jonathan (1879) | Lost 1-2 | Wiegersma, Jelger (1802) |
| Grand Prix Salt Lake City 2005 | 13 | 10 | Sonne, Jonathan (1874) | Won 2-0 | Wiegersma, Jelger (1867) |
| 2005 World Championship | 13 | 18 | Sonne, Jonathan (2012) | Won 2-0 | Wiegersma, Jelger (1808) |