Jansen, Jesper
Current rating: 1505
Record: 8-8
| Grand Prix Lisbon 2012 (RTR limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 608 | Kriz, Tomas (1651) | Lost 0-2 | -161502 |
| 3sealed | 739 | Batalha, Rafael (1500) | Won 2-0 | +181520 |
| 4sealed | 626 | Del Mazo, Carlos (1626) | Lost 0-2 | -161504 |
| 5sealed | 758 | Gruson, Pierre (1510) | Lost 0-2 | -181486 |
| 6sealed | 749 | Samra, Baljeet (1438) | Won 2-0 | +171503 |
| 7sealed | 685 | Simoes, Pedro Miguel A (1498) | Won 2-1 | +181521 |
| 8sealed | 638 | Renner, Mark (1631) | Lost 0-2 | -161505 |
| average opponent: 1551record: 3-4 | new rating: 1505 | |||
| Grand Prix Manchester 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Greenwood, Richard J (1435) | Lost 0-2 | -191481 |
| 2sealed | 148 | Newell, Kelly (1412) | Won 2-0 | +171498 |
| 3sealed | 178 | Mader, Markus (1478) | Lost 0-2 | -191479 |
| 4sealed | 203 | Majowicz, Julien (1482) | Lost 1-2 | -181461 |
| 5sealed | 208 | Hagan, Siobhan (1466) | Won 2-0 | +181479 |
| 6sealed | 189 | Pettifer, Philip (1606) | Won 2-0 | +211500 |
| 7sealed | 129 | Bailey, Richard T (1500) | Won 2-0 | +181518 |
| 8sealed | 103 | De Swarte, Daniel (1525) | Won 2-0 | +181536 |
| 9sealed | 67 | Ivanov, Svetoslav (1529) | Lost 0-2 | -181518 |
| average opponent: 1493record: 5-4 | new rating: 1518 | |||