Laciak, Marcin
Current rating: 1421
Record: 14-20
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1443 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Ravagli, Luca (1801) | Lost 0-2 | -121431 |
| 2sealed | 464 | Isaksson, Marcus (1338) | Won 2-0 | +161447 |
| 3sealed | 498 | Matsushita, Takashi (1653) | Lost 1-2 | -141433 |
| 4sealed | 673 | Naletov, Konstantin (1481) | Lost 1-2 | -171416 |
| 5sealed | 762 | Luis, Manuel (1410) | Won 2-1 | +181434 |
| 6sealed | 665 | Sanne, Florenz M (1454) | Lost 0-2 | -181416 |
| 7sealed | 568 | Rasmussen, Martin (1615) | Lost 1-2 | -141402 |
| 8sealed | 500 | Van Velzen, Rody (1446) | Won 2-1 | +191421 |
| top | average opponent: 1525record: 3-5 | new rating: 1421 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 245 | Przybylo, Dariusz (1761) | Lost 1-2 | -131473 |
| 2sealed | 307 | Jonsson, Andreas (1943) | Lost 0-2 | -101463 |
| 3sealed | 465 | Omelyanchik, Alexander (1503) | Lost 1-2 | -171446 |
| 4sealed | 466 | Willems, David (1356) | Won 2-0 | +161462 |
| 5sealed | 404 | Kolsut, Kamil (1464) | Won 2-1 | +181480 |
| 6sealed | 345 | Karolski, Lukasz (1476) | Lost 1-2 | -181462 |
| 7sealed | 322 | Vychodil, David (1468) | Lost 0-0 | -181444 |
| 8sealed | 308 | Fransen, Bart [BEL] (1409) | Won 2-0 | +171461 |
| 9sealed | 245 | Dadel, Kamil (1437) | Lost 0-2 | -181443 |
| top | average opponent: 1535record: 3-6 | new rating: 1443 | ||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 49 | Szatkowski, David (1500) | Won 2-1 | +181485 |
| 2standard | 189 | Piroddi, Dario (1493) | Lost 1-2 | -181467 |
| 3standard | 237 | Larsson, Rikard (1445) | Won 2-1 | +181485 |
| 4standard | 336 | Pszczolkowski, Hubert (1482) | Lost 0-2 | -181467 |
| 5standard | 321 | Sodergren, Christian (1468) | Won 2-0 | +181485 |
| 6standard | 246 | Bazhanov, Mikhail (1462) | Lost 0-2 | -181467 |
| 7standard | 343 | Sistek, Martin (1448) | Won 2-0 | +171484 |
| 8standard | 252 | Matloka, Pawel (1517) | Lost 0-2 | -171467 |
| 9standard | 280 | Philippou, Alexander (1528) | Won 2-0 | +191486 |
| top | average opponent: 1483record: 5-4 | new rating: 1486 | ||
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 136 | Sandlak, Marcin (1500) | Won 2-1 | +181518 |
| 2block | 5 | Asanov, Marat (1542) | Won 2-1 | +181536 |
| 3block | 5 | Yatsenko, Alex (1644) | Lost 0-2 | -161520 |
| 4block | 54 | Piatkowski, Dominik (1523) | Lost 0-2 | -181502 |
| 5block | 133 | Koper, Michael (1507) | Won 2-0 | +191521 |
| 6block | 85 | Schoch, Marc (1549) | Lost 0-2 | -181503 |
| 7block | 95 | Urbanec, Jan (1486) | Lost 1-2 | -181485 |
| 8block | 104 | Veresov, Aleksej (1482) | Lost 0-2 | -181467 |
| top | average opponent: 1529record: 3-5 | new rating: 1467 | ||