de Graaf, Michael
Current rating: 1395
Record: 6-13-4
| Grand Prix Milan 2014 (JOU limited) | starting rating: 1401 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 304 | Zee, Humphrey (1500) | Draw 1-1 | +21403 |
| 2sealed | 265 | Capodivento, Vincenzo (1559) | Lost 1-2 | -151388 |
| 3sealed | 463 | Brancaccio, Roberto (1500) | Draw 1-1 | +21390 |
| 4sealed | 518 | Battistella, Mattia (1452) | Draw 1-1 | +11391 |
| 5sealed | 483 | Valenti, Ezio (1550) | Lost 1-2 | -151376 |
| 6sealed | 453 | Ganivet, Jeremy (1446) | Won 2-0 | +191395 |
| top | average opponent: 1501record: 1-2-3 | new rating: 1395 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Semmens, Matthew (1498) | Won 2-1 | +191428 |
| 2sealed | 67 | Edwards, Jake (S.A.) (1518) | Lost 1-2 | -161412 |
| 3sealed | 201 | Marden, Scott (1500) | Lost 1-2 | -161396 |
| 4sealed | 266 | Van Maarseveen, Ryan (1466) | Lost 0-2 | -171379 |
| 5sealed | 255 | Watson, Sarah (1464) | Won 2-0 | +201399 |
| 6sealed | 204 | Van Miltenburg, Lynk (1481) | Won 2-0 | +191418 |
| 7sealed | 143 | Kim, Patrick (1465) | Lost 0-2 | -171401 |
| top | average opponent: 1485record: 3-4 | new rating: 1401 | ||
| Grand Prix Melbourne 2012 (DKA limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Spark, Benjamin (1487) | Lost 0-2 | -181461 |
| 2sealed | 221 | Tang, Yao (1482) | Lost 1-2 | -171444 |
| 3sealed | 216 | O'Rourke, Stuart (1483) | Lost 1-2 | -171427 |
| 4sealed | 256 | De Valter, Joshua (1445) | Lost 0-2 | -181409 |
| top | average opponent: 1474record: 0-4 | new rating: 1409 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 136 | Chlumecky, Lukas (1518) | Lost 0-2 | -181482 |
| 2sealed | 233 | Novotny, Jakub (1419) | Won 2-0 | +171499 |
| 3sealed | 124 | Opl, Thomas (1445) | Draw 1-1 | -11498 |
| 4sealed | 191 | Onken, Monika (1500) | Won 2-1 | +181516 |
| 5sealed | 135 | Tassinari, Luca (1519) | Lost 0-2 | -181498 |
| 6sealed | 171 | Bedecs, Lukas (1445) | Lost 1-2 | -191479 |
| top | average opponent: 1475record: 2-3-1 | new rating: 1479 | ||