Grondal, Sebastian
Current rating: 1434
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 69 | Riley, David (1579) | Lost 1-2 | -161448 |
| 2sealed | 391 | Fairbrother, Alexander (1481) | Won 2-0 | +191467 |
| 3sealed | 502 | Vartiainen, Atte (1595) | Lost 0-2 | -161451 |
| 4sealed | 483 | Alvland, Carl-Fredrik (1485) | Lost 1-2 | -171434 |
| top | average opponent: 1535record: 1-3 | new rating: 1434 | ||
| Grand Prix Copenhagen 2018 (DOM standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 186 | Pohle, Maria (1399) | Draw 1-1 | -21481 |
| 2standard | 158 | Dorup, Mads (1444) | Draw 1-1 | 01481 |
| 3standard | 314 | Korsgaard, Jacob (1499) | Lost 1-2 | -181463 |
| 4standard | 342 | Schalk, Louis (1405) | Lost 0-2 | -191444 |
| 5standard | 334 | Wintero, Morten (1558) | Won 2-1 | +201464 |
| top | average opponent: 1461record: 1-2-2 | new rating: 1464 | ||
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 338 | Urbaniak, Pawel (1500) | Lost 1-2 | -181482 |
| 2modern | 582 | Andreasen, Simon (1482) | Won 2-1 | +181500 |
| 3modern | 473 | Herlitz, Fredrik (1506) | Lost 1-2 | -181482 |
| 4modern | 619 | Wetterborg, Kristofer (1483) | Won 2-0 | +181500 |
| 5modern | 685 | Richards, Ethan (1494) | Won 2-1 | +181518 |
| 6modern | 501 | Hillmann, Alexander (1512) | Lost 1-2 | -181500 |
| 7modern | 606 | Calligaro, Laurent (1539) | Lost 0-2 | -171483 |
| 8modern | 553 | Guldbaek-Olesen, Kenni (1496) | Won 2-1 | +181501 |
| 9modern | 435 | Daneluk, Erik (1506) | Lost 1-2 | -181483 |
| top | average opponent: 1502record: 4-5 | new rating: 1483 | ||