Demuth, Mario
Current rating: 1467
Record: 3-5
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 137 | Plonski, Andre (1500) | Lost 0-2 | -181482 |
| 2pioneer | 451 | Novak, Sascha (1501) | Won 2-0 | +181500 |
| 3pioneer | 610 | Paglieri, Fabio (1357) | Lost 0-2 | -201480 |
| 4pioneer | 657 | Verdonck, Timmy (1438) | Won 2-1 | +171497 |
| 5pioneer | 522 | Grass, Christopher (1542) | Won 2-1 | +191516 |
| 6pioneer | 414 | Koch, Florian (1678) | Lost 0-2 | -151501 |
| 7pioneer | 384 | Jochum, Arnaud (1611) | Lost 0-2 | -161485 |
| 8pioneer | 396 | Plinate, Robin (1511) | Lost 1-2 | -181467 |
| average opponent: 1517record: 3-5 | new rating: 1467 | |||