van Duijn, Rik
Current rating: 1483
| Grand Prix Bologna 2016 (modern) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 492 | Bux, Marcel (1500) | Lost 1-2 | -181460 |
| 2modern | 732 | Healey, William (1481) | Lost 0-2 | -181442 |
| 3modern | 1060 | Krstevski, Grigor (1418) | Won 2-1 | +181460 |
| 4modern | 917 | Morena, Angelo (1482) | Won 2-1 | +181478 |
| 5modern | 582 | Arushanyan, Arsen (1481) | Draw 1-1 | 01478 |
| 6modern | 704 | Sarra, Stefano (1497) | Won 2-0 | +191497 |
| 7modern | 506 | Nikl, Milan (1513) | Won 2-1 | +181515 |
| 8modern | 345 | Barclay, Bradley (1698) | Lost 0-2 | -151500 |
| 9modern | 497 | Latorre, Ivan (1523) | Lost 1-2 | -171483 |
| top | average opponent: 1510record: 4-4-1 | new rating: 1483 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1254 | Van Roosmalen, Bas (1500) | Lost 1-2 | -181478 |
| 2sealed | 1361 | Wesseling, Roman (1481) | Lost 0-2 | -181460 |
| 3sealed | 1482 | Hubert, Anthony (1420) | Won 2-0 | +181478 |
| 4sealed | 1372 | Lombardy, Ray (1481) | Won 2-1 | +181496 |
| 5sealed | 1260 | Dalecke, Sandor (1498) | Lost 0-2 | -181478 |
| top | average opponent: 1476record: 2-3 | new rating: 1478 | ||
| Grand Prix Paris 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 489 | Aini, Sebastian (1500) | Lost 1-2 | -181482 |
| 2legacy | 421 | TIA, Christophe (1483) | Won 2-1 | +181500 |
| 3legacy | 435 | Reymond, Hubert (1498) | Won 2-1 | +181518 |
| 4legacy | 272 | Lindeman, Lennart (1586) | Won 2-1 | +191537 |
| 5legacy | 294 | Brown, Eric (1587) | Lost 1-2 | -171520 |
| 6legacy | 453 | Martin, Nicolas (1441) | Lost 0-2 | -191501 |
| 7legacy | 395 | Collatuo, Loris (1471) | Lost 1-2 | -191482 |
| 8legacy | 436 | Parchanowicz, Maxime (1258) | Won 2-0 | +141496 |
| top | average opponent: 1478record: 4-4 | new rating: 1496 | ||