Berbec, Mateusz
Current rating: 1640
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 62 | Nienstedt, Urs (1495) | Won 2-0 | +171571 |
| 2standard | 90 | Van Hauwermeiren, Niels (1466) | Lost 1-2 | -201551 |
| 3standard | 519 | Zablocki, Maciej (1499) | Won 2-0 | +171568 |
| 4standard | 204 | Borkowski, Robert (1603) | Won 2-1 | +191587 |
| 5standard | 254 | Aaro, Carl Oscar (1716) | Lost 1-2 | -161571 |
| 6standard | 281 | Camarasa Ibanez, Juan Alejandro (1462) | Won 2-0 | +161587 |
| 7standard | 197 | Lemke, Tim (1690) | Won 2-1 | +201607 |
| 8standard | 99 | Lind, Daniel (1564) | Won 2-0 | +171624 |
| 9standard | 90 | Hajducki, Mateusz (1587) | Lost 0-2 | -181606 |
| 10standard | 153 | Jerabek, Petr (1640) | Won 2-0 | +181624 |
| 11standard | 84 | Freitas, Rui (1601) | Won 2-0 | +181642 |
| 12standard | 67 | Cofalik, Szymon (1686) | Lost 1-2 | -171625 |
| 13standard | 113 | Lier, Malte (1477) | Lost 1-2 | -211604 |
| 14standard | 121 | Jonsson, Peter (1648) | Won 2-0 | +191623 |
| 15standard | 106 | Righini, Fabio (1578) | Won 2-1 | +171640 |
| top | average opponent: 1581record: 10-5 | new rating: 1640 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 190 | Rosa, Pasquale (1446) | Won 2-1 | +171545 |
| 2standard | 157 | Krejsa, Tomas (1662) | Won 2-1 | +201565 |
| 3standard | 43 | Rolph, Sam-Luca (1811) | Lost 0-2 | -131552 |
| 4standard | 327 | Jakobsson, Thomas (1481) | Lost 1-2 | -201532 |
| 5standard | 322 | Fryca, Krzysztof (1493) | Won 2-0 | +181550 |
| 6standard | 293 | Biondo, Dario (1572) | Lost 1-2 | -181532 |
| 7standard | 379 | Figarski, Tomasz (1632) | Won 2-0 | +201552 |
| 8standard | 225 | Kurkowski, Andrzej (1496) | Won 2-0 | +171569 |
| 9standard | 179 | Maurici, Micheal (1756) | Lost 0-2 | -151554 |
| top | average opponent: 1594record: 5-4 | new rating: 1554 | ||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 92 | Cabezas Munoz, Jose Manuel (1809) | Lost 0-2 | -131487 |
| 2standard | 355 | Brandt, Kenneth (1880) | Lost 0-2 | -111476 |
| 3standard | 527 | De Brabander, Michael (1425) | Won 2-1 | +171493 |
| 4standard | 494 | Liwerski, Rafal (1488) | Lost 0-2 | -181475 |
| 5standard | 513 | Antal, Roland (1464) | Won 2-1 | +181493 |
| 6standard | 401 | Bestak, Jiri (1481) | Lost 1-2 | -181475 |
| 7standard | 386 | Florczak, Daniel (1406) | Won 2-0 | +171492 |
| 8standard | 290 | Watorek, Krzysztof (1553) | Won 2-1 | +191511 |
| 9standard | 215 | BRZOSTOWSKI, MARIUSZ (1500) | Won 2-1 | +171528 |
| top | average opponent: 1556record: 5-4 | new rating: 1528 | ||