Guz, Marcin
Current rating: 1535
Record: 15-13
| Grand Prix Brussels 2008 (SHM limited) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 4 | Gokhan, Sahin (1655) | Won 2-1 | +201547 |
| 5sealed | 7 | Kleij, Rogier (1592) | Lost 0-2 | -171530 |
| 6sealed | 58 | Zembaty, Michal (1711) | Won 2-0 | +211551 |
| 7sealed | 47 | Licht, Tobias (1550) | Lost 0-0 | -181533 |
| 8sealed | 48 | Schoots, Ulco (1514) | Won 2-0 | +181551 |
| 9sealed | 26 | Schreiber, Andreas (1638) | Lost 0-2 | -161535 |
| top | average opponent: 1610record: 3-3 | new rating: 1535 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 96 | Jaeger, Jens (1497) | Lost 0-2 | -201548 |
| 3extended | 114 | Roelant, Jens (1410) | Won 2-1 | +161564 |
| 4extended | 132 | Bonaventura, Ciro (1483) | Lost 0-2 | -201544 |
| 5extended | 186 | Karlinski, Anton (1572) | Lost 0-2 | -171527 |
| top | average opponent: 1491record: 1-3 | new rating: 1527 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Vanderhoef, Richard (1445) | Won 2-0 | +161575 |
| 2sealed | 148 | Jickeli, Christian (1500) | Lost 1-2 | -201555 |
| 3sealed | 145 | Sch?leben, Dominiik (1498) | Lost 1-2 | -191536 |
| 4sealed | 253 | Gerecke, Piet (1503) | Lost 0-2 | -181518 |
| 5sealed | 264 | Siller, Benedict (1464) | Won 2-0 | +171535 |
| 6sealed | 210 | Kanter, Lars (1487) | Won 2-1 | +171552 |
| 7sealed | 170 | Frischmann, Ludwig (1576) | Won 2-0 | +181570 |
| 8sealed | 105 | Kern, Oliver (1527) | Lost 1-2 | -191551 |
| 9sealed | 102 | De La Iglesia, David (1464) | Won 2-1 | +171568 |
| top | average opponent: 1496record: 5-4 | new rating: 1568 | ||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 119 | Wulfert, Frederik (1500) | Won 2-0 | +181518 |
| 2standard | 90 | Witczak, Bartlomiej (1500) | Won 2-1 | +181536 |
| 3standard | 18 | Wierzynski, Pawel (1537) | Won 2-0 | +181554 |
| 4standard | 19 | Yasooka, Shota (1872) | Lost 0-2 | -131541 |
| 5standard | 42 | Dushkevich, Artem (1651) | Lost 0-2 | -161525 |
| 6standard | 92 | Bednarik, Richard (1542) | Lost 1-2 | -171508 |
| 7standard | 124 | Roessler, Pavel (1487) | Won 2-1 | +171525 |
| 8standard | 75 | Longree, Benjamin (1402) | Won 2-0 | +161541 |
| 9standard | 70 | Kristensen, David Kai (1519) | Won 2-1 | +181559 |
| top | average opponent: 1557record: 6-3 | new rating: 1559 | ||