Sievert, Peter
Current rating: 1581
Record: 9-6
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 317 | Neumann, Johannes (1725) | Won 2-0 | +221522 |
| 2sealed | 85 | Tambor, Kuba (1556) | Lost 1-2 | -171505 |
| 3sealed | 564 | Martini, Nicola (1504) | Won 2-1 | +181523 |
| 4sealed | 351 | Gaviglio, Luca (1559) | Won 2-0 | +181541 |
| 5sealed | 406 | Farkas, Andrej (1537) | Won 2-0 | +181559 |
| 6sealed | 160 | Franque, Romaric (1675) | Won 2-0 | +201579 |
| 7sealed | 105 | Bender, Raphael (1778) | Won 2-0 | +221601 |
| 8sealed | 84 | Spaziani, Virgilio (1578) | Won 2-0 | +171618 |
| 9sealed | 12 | Kerem, Hannes (1917) | Lost 0-2 | -121606 |
| 10draft | 304 | Biasio, Stefano (1791) | Lost 1-2 | -151591 |
| 11draft | 297 | Stureson, Per (1718) | Lost 0-2 | -161575 |
| 12draft | 294 | Hubrich, Rene (1677) | Lost 0-2 | -161559 |
| 13draft | 278 | Castellani, Antonio (1785) | Lost 0-2 | -141545 |
| 14draft | 236 | Rennie, David (1370) | Won 2-0 | +151560 |
| 15draft | 267 | Preto, Sergio (1730) | Won 2-1 | +211581 |
| average opponent: 1660record: 9-6 | new rating: 1581 | |||