De Koning, Alex
Current rating: 1357
| Grand Prix Lille 2012 (DKA standard) | starting rating: 1378 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 514 | Lemaitre, Maxime (1683) | Lost 0-2 | -131365 |
| 2standard | 733 | Mathon, Victor (1482) | Lost 1-2 | -161349 |
| 3standard | 806 | Timmins, Guillaume (1494) | Won 2-1 | +211370 |
| 4standard | 804 | Boccard, Edouard (1463) | Won 2-1 | +191389 |
| 5standard | 701 | Janon, Quentin (1497) | Lost 0-2 | -161373 |
| 6standard | 757 | Guy, Romain (1484) | Lost 0-2 | -161357 |
| top | average opponent: 1517record: 2-4 | new rating: 1357 | ||
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 632 | Boilevin, Jerome (1437) | Lost 0-2 | -181429 |
| 2legacy | 968 | Simon, Jonathan (1487) | Lost 1-2 | -171412 |
| 3legacy | 973 | Kemmerich, Oliver (1463) | Lost 1-2 | -171395 |
| 4legacy | 1051 | Wanschers, Wilko (1446) | Lost 0-2 | -171378 |
| top | average opponent: 1458record: 0-4 | new rating: 1378 | ||
| Grand Prix Brussels 2004 (DST standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 106 | Lhomme, Steeve (1500) | Lost 0-2 | -181482 |
| 2standard | 237 | Voulgaris, Odysseas (1522) | Lost 0-2 | -171465 |
| 3standard | 320 | van der Werff, Genaro (1465) | Lost 0-2 | -181447 |
| top | average opponent: 1496record: 0-3 | new rating: 1447 | ||