Szajna, Jakub
Current rating: 1342
Record: 15-26-1
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1377 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 31 | Dagani, Samuele (1476) | Lost 1-2 | -161361 |
| 2standard | 239 | Gilberti, Christian (1485) | Lost 1-2 | -161345 |
| 3standard | 488 | Hovelmeier, Niklas (1569) | Lost 0-2 | -141331 |
| 4standard | 542 | Sobieski, Marek (1396) | Lost 0-2 | -161315 |
| 5standard | 535 | Berg, Joshua (1430) | Won 2-1 | +201335 |
| 6standard | 491 | Schmidt, Tim (1435) | Lost 1-2 | -161319 |
| 7standard | 478 | Siedlecka, Marta (1383) | Won 2-0 | +191338 |
| 8standard | 416 | Grabowski, Daniel (1449) | Won 2-1 | +201358 |
| 9standard | 352 | Teslin, Aleksandr (1468) | Lost 1-2 | -161342 |
| top | average opponent: 1455record: 3-6 | new rating: 1342 | ||
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 129 | Niens, Jeroen (1521) | Won 2-1 | +201453 |
| 4standard | 140 | Eeckhaut, Wouter (1558) | Lost 1-2 | -161437 |
| 5standard | 173 | Rampini, Stefano (1791) | Lost 0-2 | -121425 |
| 6standard | 370 | Johansson, Christoffer (1527) | Lost 1-2 | -161409 |
| 7standard | 468 | Berna, Brice (1552) | Lost 0-1 | -151394 |
| 8standard | 494 | Dhanpat, Amarnath (1403) | Lost 1-2 | -181376 |
| 9standard | 412 | Rogiers, Sander (1466) | Draw 1-1 | +11377 |
| top | average opponent: 1545record: 1-5-1 | new rating: 1377 | ||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 251 | Szulhan, Michal (1456) | Lost 0-2 | -191491 |
| 2standard | 357 | Gergely, Levente (1487) | Lost 1-2 | -181473 |
| 3standard | 522 | Rehan, Jareth (1425) | Won 2-1 | +171490 |
| 4standard | 524 | Skoczylas, Tomasz (1483) | Won 2-0 | +181508 |
| 5standard | 415 | Popielski, Michal (1400) | Lost 1-2 | -201488 |
| 6standard | 398 | Frost, Niks (1462) | Lost 0-2 | -191469 |
| 7standard | 398 | Gergo, Tamas (1464) | Lost 0-2 | -181451 |
| 8standard | 344 | Malinowski, Mateusz (1455) | Lost 0-2 | -181433 |
| top | average opponent: 1454record: 2-6 | new rating: 1433 | ||
| Grand Prix Stockholm 2014 (KTK standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 25 | Hakansson, Ola (1478) | Won 2-0 | +191467 |
| 2standard | 89 | Nielsen, Kennet (1435) | Won 2-1 | +171484 |
| 3standard | 344 | Albrigtsen, Tom-Sondre (1500) | Lost 0-2 | -171467 |
| 4standard | 137 | Pyulze, Aarne (1528) | Won 2-1 | +191486 |
| 5standard | 13 | Hyvonen, Toni (1503) | Won 2-0 | +181504 |
| 6standard | 279 | Cordero, Angel (1579) | Won 2-1 | +191523 |
| 7standard | 39 | Andersson, Gordon (1577) | Lost 0-2 | -171506 |
| 8standard | 61 | Troback, Ludvig (1618) | Won 2-1 | +201526 |
| 9standard | 166 | Patel, Kayure (1609) | Lost 1-2 | -161510 |
| top | average opponent: 1536record: 6-3 | new rating: 1510 | ||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 166 | Paprocki, Bartlomiej (1500) | Won 2-1 | +181518 |
| 2standard | 17 | Hwung, Youn Ming (1591) | Lost 1-2 | -171501 |
| 3standard | 259 | Castillo, Roberto (1482) | Won 2-0 | +181519 |
| 4standard | 359 | Jasiulionis, Gintaras (1608) | Lost 1-2 | -161503 |
| 5standard | 296 | Kaklauskas, Gabrielius (1439) | Lost 0-2 | -201483 |
| 6standard | 352 | Knap, Cestmir (1398) | Lost 1-2 | -191464 |
| 7standard | 396 | Vondracek, Zdenek (1512) | Won 2-0 | +191483 |
| 8standard | 336 | Kulczynski, Kamil (1578) | Lost 1-2 | -171466 |
| 9standard | 307 | Klimowski, Piotr (1462) | Lost 1-2 | -181448 |
| top | average opponent: 1508record: 3-6 | new rating: 1448 | ||