heeffer, john
Current rating: 1484
Record: 2-3
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 321 | Vooijs, Wijnand (1500) | Won 2-1 | +181518 |
| 2extended | 150 | Menger, Joran (1518) | Lost 0-2 | -181500 |
| 3extended | 317 | Bouten, Bas (1469) | Won 2-0 | +171517 |
| 4extended | 231 | Sutor, Emanuel (1668) | Lost 0-2 | -151502 |
| 5extended | 261 | Delsard, Benny (1501) | Lost 1-2 | -181484 |
| average opponent: 1531record: 2-3 | new rating: 1484 | |||