Sieber, Michael
Current rating: 1405
| Grand Prix Barcelona 2019 (modern) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 231 | Haleblian, Boris (1383) | Lost 1-2 | -191399 |
| 2modern | 387 | Rikola, Markku (1710) | Lost 1-2 | -121387 |
| 3modern | 708 | Pani Armengou, Gianni (1463) | Lost 0-2 | -171370 |
| 4modern | 730 | Bravo, Pablo (1449) | Won 2-0 | +201390 |
| 5modern | 647 | Casamenti, Andrea (1298) | Lost 1-2 | -201370 |
| 6modern | 602 | Kelterbaum, Catherine (1258) | Won 2-1 | +161386 |
| 7modern | 494 | Teodonio, Fabrizio (1467) | Won 2-0 | +191405 |
| top | average opponent: 1433record: 3-4 | new rating: 1405 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 168 | Basler, Samuel (1500) | Lost 1-2 | -171430 |
| 2sealed | 423 | Grandcolas, Alexis (1479) | Lost 1-2 | -171413 |
| 3sealed | 748 | Brucherseifer, Christian (1522) | Won 2-1 | +201433 |
| 4sealed | 687 | Hessens, Oliver (1605) | Lost 0-2 | -151418 |
| top | average opponent: 1526record: 1-3 | new rating: 1418 | ||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 430 | Huben, Carlo (1510) | Lost 1-2 | -181482 |
| 2sealed | 1248 | Loven, Axel (1471) | Lost 1-2 | -181464 |
| 3sealed | 1131 | Kummer, Tomas (1524) | Lost 0-2 | -171447 |
| top | average opponent: 1501record: 0-3 | new rating: 1447 | ||