Koelewijn, Roy
Current rating: 1461
| Grand Prix Strasbourg 2013 (legacy) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 382 | Eloy, Charles (1478) | Won 2-0 | +191471 |
| 2legacy | 245 | Van Goethem, Stijn (1801) | Won 2-0 | +231494 |
| 3legacy | 66 | de Bruijn, Nicole (1506) | Won 0-0 | +191513 |
| 4legacy | 148 | Gramespacher, Thomas (1408) | Lost 1-2 | -201493 |
| 5legacy | 135 | Dreger, Tobias (1606) | Draw 1-1 | +21495 |
| 6legacy | 211 | Fukala, Dalibor (1635) | Won 2-1 | +201515 |
| 7legacy | 122 | Stajic, Milos (1441) | Lost 1-2 | -191496 |
| 8legacy | 212 | Wilhelm, Christopher (1544) | Lost 1-2 | -171479 |
| 9legacy | 232 | Dietrich, Denis (1470) | Lost 0-2 | -181461 |
| top | average opponent: 1543record: 4-4-1 | new rating: 1461 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 560 | Pacewicz, Patryk (1500) | Lost 1-2 | -191486 |
| 2standard | 777 | Koch, Johannes (1487) | Won 2-1 | +181504 |
| 3standard | 731 | Wachall, Alexander (1480) | Lost 1-2 | -181486 |
| 4standard | 803 | Schmidt, Arthur (1562) | Lost 1-2 | -171469 |
| 5standard | 844 | Hachmann, Rasmus (1464) | Won 2-0 | +181487 |
| 6standard | 794 | Lauryssen, Willem (1546) | Draw 1-1 | +11488 |
| 7standard | 769 | Gack, Tobias (1485) | Lost 0-2 | -181470 |
| 8standard | 743 | Rogar, Vernier (1463) | Lost 0-2 | -181452 |
| top | average opponent: 1498record: 2-5-1 | new rating: 1452 | ||
| Grand Prix Ghent 2012 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 154 | Valenti, Fabio (1447) | Draw 1-1 | -11499 |
| 2legacy | 156 | Ziesche, Sebastian (1644) | Lost 1-2 | -151484 |
| 3legacy | 239 | Richet, Vincent (1482) | Won 2-0 | +181502 |
| 4legacy | 226 | Soer, Dinand (1500) | Won 2-0 | +181520 |
| 5legacy | 161 | Danis, Mickael (1634) | Won 2-1 | +201540 |
| 6legacy | 108 | Calzetta, Riccardo (1523) | Lost 1-2 | -191521 |
| 7legacy | 164 | Schneider, Valentin (1579) | Won 2-0 | +191540 |
| 8legacy | 111 | Kellock, Thomas (1548) | Lost 1-2 | -171523 |
| 9legacy | 118 | Lukyanenko, Dmitry (1522) | Lost 1-2 | -181505 |
| top | average opponent: 1542record: 4-4-1 | new rating: 1505 | ||