ketelaar, john
Current rating: 1466
Record: 1-3
| Grand Prix Antwerp 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 440 | Mery, Theau (1500) | Won 2-1 | +181518 |
| 2modern | 330 | Wittebol, Joey (1518) | Lost 1-2 | -181500 |
| 3modern | 471 | Lehnert, Heiko (1622) | Lost 1-2 | -161484 |
| 4modern | 575 | Urvoy, Frederic (1480) | Lost 0-2 | -181466 |
| average opponent: 1530record: 1-3 | new rating: 1466 | |||