Heijselaar, Justin
Current rating: 1423
Record: 7-12
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 436 | Schouppe, Ewald (1378) | Won 2-0 | +161459 |
| 2sealed | 387 | Susicki, Olaf (1393) | Lost 1-2 | -191440 |
| 3sealed | 584 | Van Haaften, Roy (1505) | Lost 0-2 | -171423 |
| 4sealed | 561 | Willemstein, Robert (1377) | Won 2-1 | +181441 |
| 5sealed | 487 | Gosic, Lazar (1462) | Lost 0-2 | -181423 |
| top | average opponent: 1423record: 2-3 | new rating: 1423 | ||
| Grand Prix Turin 2018 (M19 limited) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 191 | Ahvenainen, Miikka (1500) | Won 2-1 | +191457 |
| 2sealed | 164 | Tsabal, Oran (1524) | Lost 1-2 | -171440 |
| 3sealed | 363 | Orefice, Emanuele (1415) | Won 2-1 | +181458 |
| 4sealed | 326 | Garrido Salto, Felix (1502) | Won 2-0 | +181476 |
| 5sealed | 131 | Chemnitz, Robin (1541) | Lost 1-2 | -161460 |
| 6sealed | 306 | Martinig, Mirko (1519) | Lost 0-2 | -171443 |
| top | average opponent: 1500record: 3-3 | new rating: 1443 | ||
| Grand Prix Liverpool 2017 (XLN limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 281 | Brooks, Gregory (1489) | Lost 0-2 | -181448 |
| 2sealed | 293 | Castino, Jacopo (1482) | Won 2-1 | +191467 |
| 3sealed | 462 | Ring, Levi (1703) | Lost 1-2 | -141453 |
| 4sealed | 487 | Glenister, Mark (1612) | Lost 0-2 | -151438 |
| top | average opponent: 1572record: 1-3 | new rating: 1438 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Heining, Joakim (1566) | Won 2-0 | +191519 |
| 2sealed | 123 | Schroter, Jens (1511) | Lost 0-2 | -181501 |
| 3sealed | 328 | Kalin, Felix (1374) | Lost 0-2 | -201481 |
| 4sealed | 547 | Timmer, Frederic (1634) | Lost 0-2 | -151466 |
| top | average opponent: 1521record: 1-3 | new rating: 1466 | ||