Boersma, Rob
Current rating: 1452
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 242 | Corsanini, Michele (1575) | Won 2-0 | +211431 |
| 2sealed | 44 | Gyselinck, Jelle (1484) | Lost 1-2 | -171414 |
| 3sealed | 499 | Grass, Christian (1500) | Won 2-0 | +191433 |
| 4sealed | 406 | Pashley, Stephen (1354) | Won 2-0 | +171450 |
| 5sealed | 170 | Vamich, Andrii (1443) | Draw 1-1 | 01450 |
| 6sealed | 190 | Pinkwart, Wiktor (1498) | Won 2-1 | +191469 |
| 7sealed | 122 | Van Der Beek, Laurens (1554) | Lost 0-2 | -171452 |
| top | average opponent: 1487record: 4-2-1 | new rating: 1452 | ||
| Grand Prix Ghent 2012 (legacy) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 628 | Prevotat, Loic (1455) | Lost 0-2 | -191464 |
| 2legacy | 831 | Bondon, Antoine (1481) | Lost 1-2 | -171447 |
| 3legacy | 877 | Bouche, Arnaud (1464) | Lost 1-2 | -181429 |
| 4legacy | 929 | Heylen, Natalie (1448) | Won 2-1 | +181447 |
| 5legacy | 875 | Jensen, Stefan (1460) | Lost 0-2 | -171430 |
| 6legacy | 866 | Scarpitta, Sebastien (1333) | Lost 0-2 | -201410 |
| top | average opponent: 1440record: 1-5 | new rating: 1410 | ||
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 43 | Jensen, Uffe (1515) | Draw 1-1 | 01500 |
| 2legacy | 218 | Santoro, Antonio (1500) | Lost 0-2 | -181482 |
| 3legacy | 314 | Philipp, Dave (1468) | Won 2-1 | +181500 |
| 4legacy | 296 | Becquet, Franck (1546) | Lost 0-1 | -171483 |
| 5legacy | 345 | Plomteux, Kevin (1483) | Lost 0-2 | -181465 |
| 6legacy | 353 | Made, Samuel Thomas (1473) | Won 2-0 | +181483 |
| top | average opponent: 1497record: 2-3-1 | new rating: 1483 | ||