Mandemakers, Niels
Current rating: 1352
Record: 2-11
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1395 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 705 | Gromoff, Quentin (1537) | Lost 1-2 | -151380 |
| 2legacy | 852 | Beduzzi, David (1639) | Won 2-0 | +231403 |
| 3legacy | 904 | Gaspard, Alexandre (1385) | Lost 0-2 | -191384 |
| 4legacy | 967 | Di Pasquale, Fabio (1481) | Lost 0-2 | -161368 |
| 5legacy | 1002 | Elon, Raviv (1467) | Lost 1-2 | -161352 |
| top | average opponent: 1502record: 1-4 | new rating: 1352 | ||
| Grand Prix Brussels 2004 (DST standard) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 209 | Blaas, Jasper (1505) | Lost 0-2 | -161413 |
| 2standard | 241 | Dulsster, Dries (1447) | Lost 0-2 | -181395 |
| top | average opponent: 1476record: 0-2 | new rating: 1395 | ||
| Grand Prix Copenhagen 2002 (ONS rochester) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 116 | Jungdalen, Edvin (1446) | Lost 1-2 | -191446 |
| 2sealed | 133 | Kirsten, Filip (1499) | Lost 0-2 | -171429 |
| top | average opponent: 1472record: 0-2 | new rating: 1429 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 105 | Classen, Robert (1543) | Lost 0-2 | -171483 |
| 2sealed | 197 | van den Brink, Peter (1483) | Lost 0-2 | -181465 |
| 3sealed | 250 | Ehara, Teruyoshi (1465) | Won 2-0 | +181483 |
| 4sealed | 219 | Poell, Johan (1481) | Lost 1-2 | -181465 |
| top | average opponent: 1493record: 1-3 | new rating: 1465 | ||