Heemeijer, Peter
Current rating: 1450
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 453 | Erkamp, Ronald (1500) | Won 2-0 | +191464 |
| 2sealed | 318 | Dauzat, Emmanuel (1531) | Lost 0-2 | -171447 |
| 3sealed | 388 | Otte, Jasper (1493) | Lost 0-2 | -171430 |
| 4sealed | 459 | Ulker, Zeynel (1483) | Won 2-0 | +191449 |
| 5sealed | 323 | Carassus, Vincent (1497) | Won 2-1 | +191468 |
| 6sealed | 213 | van der Burgh, Rob (1498) | Lost 1-2 | -181450 |
| top | average opponent: 1500record: 3-3 | new rating: 1450 | ||
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 133 | Renaud, Nicolas (1437) | Lost 0-2 | -191462 |
| 2sealed | 241 | Bechard, Olivier (1378) | Lost 0-2 | -191443 |
| 3sealed | 255 | Van Orle, Christiaan (1464) | Won 2-0 | +181461 |
| 4sealed | 214 | Van der Auwera, Bert (1509) | Lost 1-2 | -171444 |
| 5sealed | 219 | Colombi, Giovanni (1464) | Lost 0-2 | -181426 |
| 6sealed | 205 | Krutwagen, Kai (1448) | Won 2-0 | +191445 |
| top | average opponent: 1450record: 2-4 | new rating: 1445 | ||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 91 | Moreau, Olivier (1500) | Lost 1-2 | -181482 |
| 2sealed | 288 | Korbel, Jochen (1507) | Lost 1-2 | -181464 |
| 3sealed | 393 | Meriem, Jean-Baptiste (1396) | Lost 1-2 | -191445 |
| 4sealed | 407 | Christophe, Lacourt (1446) | Lost 1-2 | -181427 |
| 5sealed | 374 | Duval, Gaetan (1428) | Won 2-0 | +181445 |
| 6sealed | 311 | Jezequel, Christophe (1445) | Won 2-0 | +181463 |
| 7sealed | 244 | Hautecoeur, Loic (1463) | Won 2-0 | +181481 |
| top | average opponent: 1455record: 3-4 | new rating: 1481 | ||