Jania, Marek
Current rating: 1570
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 197 | Knipping, Kai (1694) | Won 2-1 | +221515 |
| 2sealed | 275 | Hermes, Maxime (1705) | Won 2-0 | +211536 |
| 3sealed | 315 | Vukomanovic, Igor (1531) | Won 2-0 | +181554 |
| 4sealed | 15 | Habert, Alexandre (1965) | Won 2-0 | +251579 |
| 5sealed | 61 | Eloranta, Joonas (1778) | Won 2-0 | +221601 |
| 6sealed | 7 | Klein, Fabian (1850) | Lost 0-2 | -141587 |
| 7sealed | 102 | Perbet, Guillaume (1997) | Lost 0-2 | -111576 |
| 8sealed | 257 | Fiorucci, Giacomo (1718) | Won 2-1 | +211597 |
| 9sealed | 99 | Dezani, Jeremy (2245) | Lost 0-2 | -81589 |
| 10draft | 320 | Klakauskas, Paulius (1571) | Lost 1-2 | -181571 |
| 11draft | 354 | Suhih, Alexey (1522) | Lost 1-2 | -191552 |
| 13draft | 281 | Benias, Nikolas (1587) | Lost 1-2 | -181534 |
| 14draft | 276 | Pioro, Lukasz (1630) | Won 2-0 | +201554 |
| 15draft | 270 | Forsstrom, Henrik (1435) | Won 2-0 | +161570 |
| top | average opponent: 1730record: 8-6 | new rating: 1570 | ||
| Grand Prix Strasbourg 2013 (legacy) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 138 | Romanchuk, Alexey (1500) | Lost 0-2 | -181509 |
| 5legacy | 258 | Schurkens, Brenda (1416) | Won 2-0 | +161525 |
| 6legacy | 168 | Niznansky, Milan (1610) | Lost 1-2 | -161509 |
| 7legacy | 289 | Loncar, Mislav (1486) | Lost 1-2 | -191490 |
| 8legacy | 312 | Garthe, Tobias (1575) | Lost 1-2 | -161474 |
| 9legacy | 275 | Mena, Alberto (1536) | Won 2-1 | +191493 |
| top | average opponent: 1521record: 2-4 | new rating: 1493 | ||
| Grand Prix Copenhagen 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 70 | Lautrup, Henrik (1549) | Lost 0-2 | -171483 |
| 3extended | 93 | Schmider, Daniel (1472) | Won 2-1 | +181501 |
| 4extended | 75 | Czerepak, Wojciech (1505) | Won 2-1 | +181519 |
| 5extended | 74 | Salvin, Jean Charles (1859) | Won 2-0 | +241543 |
| 6extended | 40 | Fallesen, Asbjorn (1580) | Lost 1-2 | -181525 |
| 7extended | 39 | Thor, Patrik (1467) | Won 2-0 | +171542 |
| 8extended | 40 | Summersberger, Helmut (1708) | Lost 0-2 | -151527 |
| top | average opponent: 1591record: 4-3 | new rating: 1527 | ||