Sieber, Marc
Current rating: 1585
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 575 | Stamenkovic, Ivan (1500) | Lost 0-2 | -201548 |
| 2sealed | 1060 | Bullack, Malte (1516) | Lost 1-2 | -181530 |
| 3sealed | 1115 | Wojno, Olivier (1543) | Won 2-0 | +181548 |
| 4sealed | 956 | Svoboda, Jan (1589) | Won 2-0 | +191567 |
| 5sealed | 870 | Pilny, Georg (1496) | Draw 1-1 | -11566 |
| 6sealed | 708 | Pouwels, Patrick (1480) | Won 2-1 | +161582 |
| 7sealed | 520 | Kohl, Reinhold (1851) | Lost 0-2 | -131569 |
| 8sealed | 508 | Eisenbeis, Tom Pascal (1495) | Won 2-0 | +161585 |
| top | average opponent: 1559record: 4-3-1 | new rating: 1585 | ||
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 109 | Tarnai, Tamas (1484) | Won 2-1 | +171550 |
| 2sealed | 97 | Jurkovic, Robert (1702) | Lost 0-2 | -151535 |
| 3sealed | 279 | Seidl, Johann (1500) | Won 2-0 | +171552 |
| 4sealed | 269 | Thaler, Sebastian (1514) | Lost 1-2 | -181534 |
| 5sealed | 333 | Steurer, Matthaus (1499) | Won 2-0 | +171551 |
| 6sealed | 239 | Guetl, Ronald (1476) | Lost 0-2 | -191532 |
| 7sealed | 257 | Kunzler, Matthias (1544) | Won 2-1 | +181550 |
| 8sealed | 192 | Bader, Raphael (1608) | Won 2-1 | +191569 |
| 9sealed | 105 | van Ruth, Eelco (1494) | Draw 1-1 | -11568 |
| top | average opponent: 1536record: 5-3-1 | new rating: 1568 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 333 | Bach, Michael (1540) | Won 2-1 | +191519 |
| 2sealed | 106 | Herbstreuth, Sebastian (1624) | Won 2-1 | +201539 |
| 3sealed | 2 | Leitzinger, Robert (1536) | Won 2-1 | +181557 |
| 4sealed | 3 | Bode, Roland (1736) | Won 2-1 | +211578 |
| 5sealed | 23 | Loydl, Marcus (1589) | Lost 1-2 | -181560 |
| 6sealed | 128 | Breit, Bernhard (1599) | Lost 1-2 | -171543 |
| 7sealed | 173 | Aguado, Saul (1699) | Won 2-1 | +211564 |
| 8sealed | 121 | Carvalho, Bruno (1690) | Lost 0-2 | -161548 |
| 9sealed | 101 | Lippert, Christoph (1734) | Lost 0-2 | -151533 |
| top | average opponent: 1639record: 5-4 | new rating: 1533 | ||