De Haan, Ivar
Current rating: 1458
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2184 | Mines, Scott (1447) | Draw 1-1 | 01453 |
| 2sealed | 2233 | Engels, Robin (1499) | Won 2-0 | +191472 |
| 3sealed | 2207 | Van Der Meer, Conny (1516) | Won 2-1 | +191491 |
| 4sealed | 2104 | Ineke, Alexander (1552) | Lost 0-2 | -171474 |
| 5sealed | 2201 | Fegert, Klaus (1593) | Lost 0-2 | -161458 |
| top | average opponent: 1522record: 2-2-1 | new rating: 1458 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 279 | Pfahl, Sebastian (1524) | Won 2-0 | +201446 |
| 2modern | 171 | Blieck, Benny (1512) | Draw 1-1 | +11447 |
| 3modern | 350 | Tollmann, Marcel (1501) | Lost 0-2 | -171430 |
| 4modern | 482 | Mochan, Levi (1374) | Draw 1-1 | -11429 |
| 5modern | 555 | Lorenc, Krzysztof (1522) | Lost 1-2 | -161413 |
| 6modern | 572 | Arndt, Florian (1478) | Won 2-1 | +191432 |
| 7modern | 471 | Zakiewicz, Marcin (1468) | Lost 1-2 | -171415 |
| 8modern | 449 | Hektor, Alexander (1484) | Won 2-1 | +191434 |
| 9modern | 352 | Van Den Broek, Bennie (1498) | Won 2-1 | +191453 |
| top | average opponent: 1484record: 4-3-2 | new rating: 1453 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 104 | Rietveld, Vincent (1407) | Lost 1-2 | -201480 |
| 2modern | 474 | Luong, Hai-Hau (1483) | Lost 0-2 | -181462 |
| 3modern | 661 | Ortloff, Sebastian (1463) | Lost 0-2 | -181444 |
| 4modern | 757 | Paalvast, Mike (1447) | Lost 1-2 | -181426 |
| top | average opponent: 1450record: 0-4 | new rating: 1426 | ||