Siemssen, Jasper
Current rating: 1489
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 272 | Hilker, Pascal (1581) | Lost 0-2 | -161450 |
| 2sealed | 312 | Schreiber, Christoph (1481) | Lost 0-2 | -171433 |
| 3sealed | 377 | Stolle, Filip (1465) | Won 2-1 | +181451 |
| 4sealed | 316 | Tempir, Pavel (1467) | Lost 0-2 | -171434 |
| 5sealed | 369 | Francl, Petr (1463) | Won 2-1 | +181452 |
| 6sealed | 274 | Varga, Tomas (1482) | Won 2-0 | +191471 |
| 7sealed | 196 | Ajmasi, Zsolt (1501) | Won 2-0 | +181489 |
| 8sealed | 159 | Kordovan, Daniel (1453) | Lost 0-2 | -181471 |
| 9sealed | 126 | Lavo, Radek (1506) | Won 2-0 | +181489 |
| top | average opponent: 1489record: 5-4 | new rating: 1489 | ||
| Grand Prix Copenhagen 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 125 | Bugaenko, Igor (1495) | Won 2-0 | +181518 |
| 2sealed | 1 | Furby, Mats (1519) | Lost 0-2 | -181500 |
| 3sealed | 141 | Asp, Ken (1493) | Lost 1-2 | -181482 |
| 4sealed | 200 | Wade, Keith (1481) | Won 2-0 | +181500 |
| 5sealed | 171 | Kuosmanen, Olavi (1648) | Lost 0-2 | -161484 |
| 6sealed | 155 | Tietze, Sascha (1452) | Won 2-1 | +181502 |
| 7sealed | 122 | Agliany, Antonin (1511) | Lost 0-2 | -181484 |
| 8sealed | 107 | Kirsten, Filip (1499) | Lost 1-2 | -181466 |
| top | average opponent: 1512record: 3-5 | new rating: 1466 | ||
| Grand Prix Hamburg 2002 (Odyssey block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 91 | Marquardt, Bjorn (1500) | Won 2-0 | +181518 |
| 2block | 124 | Baumgartel, Andreas (1483) | Won 2-1 | +171535 |
| 3block | 1 | Opel, Janette (1536) | Lost 1-2 | -181517 |
| 4block | 127 | Belogrivs, Imants (1519) | Won 2-0 | +181535 |
| 5block | 71 | Schaefer, Marius (1560) | Lost 0-2 | -171518 |
| 6block | 113 | Hoehn, Christian (1520) | Lost 1-2 | -181500 |
| top | average opponent: 1520record: 3-3 | new rating: 1500 | ||