Zajac, Szymon
Current rating: 1517
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 265 | Vanek, Vojtech (1505) | Won 2-1 | +171551 |
| 2standard | 118 | Lukacsy, Gergely (1565) | Won 2-1 | +191570 |
| 3standard | 97 | Pedersen, Morten (1503) | Lost 0-2 | -201550 |
| 4standard | 179 | Rosa, Pasquale (1518) | Lost 0-2 | -181532 |
| 5standard | 391 | Nyckling, Sami (1521) | Won 2-0 | +181550 |
| 6standard | 254 | Hayoun Caballero, Isaac (1629) | Lost 1-2 | -171533 |
| 7standard | 314 | Knytl, Vladislav (1566) | Won 2-1 | +191552 |
| 8standard | 220 | Piwko, Pawel (1526) | Lost 1-2 | -191533 |
| 9standard | 223 | Erhart, Daniel (1613) | Lost 0-2 | -161517 |
| top | average opponent: 1550record: 4-5 | new rating: 1517 | ||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 165 | Dickmann, Fabian (1813) | Won 2-1 | +231530 |
| 2standard | 199 | Ostalowski, Maciej (1500) | Won 2-1 | +171547 |
| 3standard | 118 | Biela, Marius (1628) | Lost 1-2 | -161531 |
| 4standard | 282 | Terroba, Gonzalo (1519) | Won 2-0 | +181549 |
| 5standard | 146 | Aksman, Jaroslaw (1522) | Lost 0-2 | -191530 |
| 6standard | 270 | Gruber, Klaas (1608) | Lost 0-2 | -161514 |
| 7standard | 292 | Trzos, Bartosz (1502) | Won 2-0 | +171531 |
| 8standard | 209 | Rodrigues, Thiago (1636) | Won 2-1 | +201551 |
| 9standard | 155 | Dosch, Sven (1583) | Lost 0-2 | -171534 |
| top | average opponent: 1590record: 5-4 | new rating: 1534 | ||
| Grand Prix Lille 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 76 | Speelmans, Jeroen (1608) | Lost 0-2 | -161484 |
| 5standard | 115 | Muller, Ronald (1565) | Won 2-0 | +191503 |
| 6standard | 41 | Storch, Florian (1560) | Won 2-1 | +191522 |
| 7standard | 68 | De Keyzer, Frederik (1486) | Lost 0-2 | -181504 |
| 8standard | 54 | George, Ben (1505) | Lost 0-2 | -181486 |
| 9standard | 92 | Feyand, Florian (1635) | Won 2-1 | +211507 |
| top | average opponent: 1560record: 3-3 | new rating: 1507 | ||