Weijers, Stefan
Current rating: 1569
Record: 34-33-2
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 191 | Roelofs, Frank (1780) | Lost 0-2 | -151589 |
| 3pioneer | 563 | Van De Kreeke, Ruud-Maarten (1480) | Won 2-0 | +161605 |
| 4pioneer | 454 | Breuers, Alex (1642) | Lost 1-2 | -171588 |
| 5pioneer | 518 | Pilorz, Michal (1533) | Lost 0-2 | -191569 |
| top | average opponent: 1609record: 1-3 | new rating: 1569 | ||
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1619 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 321 | Schmeyer, Christoph (1689) | Lost 0-2 | -161603 |
| 3sealed | 478 | Koch, Nico (1500) | Won 2-0 | +161619 |
| 4sealed | 213 | Van Erp, Elon (1520) | Won 2-1 | +161635 |
| 5sealed | 179 | Meier, Michael (1932) | Lost 1-2 | -131622 |
| 6sealed | 307 | Gottschalk, Steffen (1607) | Lost 1-2 | -181604 |
| top | average opponent: 1650record: 2-3 | new rating: 1604 | ||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1663 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 816 | Brenzinger, Nicholas (1561) | Won 2-0 | +161679 |
| 2sealed | 686 | de Graaff, Claes (1628) | Lost 1-2 | -191660 |
| 3sealed | 640 | Pavlicek, Miroslav (1473) | Lost 0-2 | -211639 |
| 4sealed | 886 | Smith, Sam [GB] (1551) | Lost 0-2 | -201619 |
| top | average opponent: 1553record: 1-3 | new rating: 1619 | ||
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 166 | Cetta, Andrea (1539) | Won 2-1 | +181525 |
| 2standard | 142 | Reichelt, Florian (1485) | Won 2-0 | +181543 |
| 3standard | 4 | Huber, Wanja (1483) | Won 2-0 | +171560 |
| 4standard | 102 | De Paepe, Emiel (1592) | Lost 0-2 | -181542 |
| 5standard | 234 | Meijers, Vincent (1766) | Won 2-1 | +221564 |
| 6standard | 57 | Cummings Eliassen, Theodor (1636) | Won 2-1 | +191583 |
| 7standard | 71 | Allard, Ramon (1531) | Won 2-0 | +171600 |
| 8standard | 16 | Oosterbaan, Fokke (1705) | Won 2-0 | +201620 |
| 9standard | 21 | Dagen, Pierre (1968) | Won 2-1 | +241644 |
| 10standard | 15 | Lekeu, Victor (1637) | Won 2-0 | +181662 |
| 11standard | 5 | Brown, Matt [ENG] (1790) | Lost 1-2 | -151647 |
| 12standard | 17 | Burchett, Autumn (2021) | Won 2-0 | +241671 |
| 13standard | 8 | Mertins, Alexander (1955) | Lost 0-2 | -131658 |
| 14standard | 28 | Rozakeas, Socrates (1849) | Won 2-0 | +221680 |
| 15standard | 17 | Waugh, Nick (1763) | Lost 0-2 | -171663 |
| top | average opponent: 1715record: 11-4 | new rating: 1663 | ||
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 140 | Gorzgen, Fabian (1724) | Won 2-0 | +221518 |
| 4standard | 45 | Kenyeres, Akos (1770) | Won 2-1 | +231541 |
| 5standard | 48 | Gan, Kok Han (1504) | Lost 1-2 | -191522 |
| 6standard | 55 | Russell, Thomas P (1711) | Lost 0-2 | -151507 |
| 7standard | 123 | Rouar, Julien (1555) | Won 2-1 | +191526 |
| 8standard | 104 | Vliegenthart, Benjamin (1792) | Won 2-1 | +231549 |
| 9standard | 47 | Knorr, Sebastian (1841) | Lost 1-2 | -131536 |
| 10standard | 155 | Zaninelli, Giovanni (1663) | Lost 0-2 | -161520 |
| 11standard | 178 | Marco, David (1527) | Won 2-0 | +181538 |
| 12standard | 129 | McPhillips, Alex (1619) | Lost 0-2 | -161522 |
| 13standard | 143 | Offenberg, Barend (1677) | Lost 1-2 | -151507 |
| top | average opponent: 1671record: 5-6 | new rating: 1507 | ||
| Grand Prix Paris 2016 (OGW standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 127 | Gonzalez, Juan (1534) | Lost 1-2 | -171481 |
| 2standard | 411 | Rickell, Edward (1466) | Lost 1-2 | -181463 |
| 3standard | 676 | Brendle, Guillaume (1464) | Won 2-0 | +181481 |
| 4standard | 630 | Dely, Stephane (1565) | Lost 1-2 | -171464 |
| 5standard | 694 | Cesana, Paolo (1455) | Won 2-0 | +181482 |
| 6standard | 519 | Bove, Sylvain (1469) | Won 2-0 | +181500 |
| 7standard | 475 | Schepman, Patrick (1412) | Won 2-0 | +161516 |
| 8standard | 277 | Didier, Nicolas (1397) | Lost 0-2 | -201496 |
| top | average opponent: 1470record: 4-4 | new rating: 1496 | ||
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 35 | Baldauf, Alexander (1483) | Draw 0-0 | -11538 |
| 2standard | 448 | Leclercq, Jean-baptiste (1464) | Draw 0-0 | -11537 |
| 3standard | 801 | Rappe, Wim (1499) | Lost 0-2 | -191518 |
| 4standard | 869 | Ribiere, Jim (1395) | Lost 1-2 | -201498 |
| top | average opponent: 1460record: 0-2-2 | new rating: 1498 | ||
| Grand Prix London 2015 (ORI standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 683 | Cowell, Tracie (1497) | Won 2-0 | +181536 |
| 2standard | 739 | Dillon, Phillip (1466) | Lost 0-2 | -191517 |
| 3standard | 944 | Worm, Hylco (1525) | Won 2-0 | +181535 |
| 4standard | 905 | Woolvett, Tom (1517) | Won 2-1 | +181553 |
| 5standard | 781 | Duffy, Thomas (1503) | Won 2-1 | +171570 |
| 6standard | 640 | Gregory, Matthew (1640) | Lost 0-2 | -171553 |
| 7standard | 559 | Mitchell-Burns, Jack (1662) | Lost 0-2 | -161537 |
| 8standard | 574 | Schwarzhof, Philipp (1502) | Won 2-1 | +171554 |
| 9standard | 369 | Vuillot, Samuel (1728) | Lost 0-2 | -151539 |
| top | average opponent: 1560record: 5-4 | new rating: 1539 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2140 | Tichelaar, Dimas (1500) | Lost 0-2 | -181482 |
| 2sealed | 2379 | Kral, Martin (1484) | Won 2-0 | +181500 |
| 3sealed | 2318 | Horwood, Barry (1490) | Lost 0-2 | -181482 |
| 4sealed | 2362 | Beyer, Frederick (1486) | Lost 1-2 | -181464 |
| 5sealed | 2351 | Moore, Jackson (1402) | Won 2-0 | +171481 |
| 6sealed | 2291 | Van Zoest, Michel (1480) | Won 2-0 | +181499 |
| 7sealed | 2197 | Williams, LoneWolf (1572) | Won 2-1 | +191518 |
| 8sealed | 2148 | Krejsa, Tomas (1665) | Lost 0-2 | -151503 |
| 9sealed | 2128 | Heylen, Ivo (1375) | Won 2-1 | +151518 |
| top | average opponent: 1495record: 5-4 | new rating: 1518 | ||