Miecznikowski, Jedrzej
Current rating: 1565
Record: 56-50
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1596 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 335 | Britton, Steven (1422) | Won 2-0 | +151611 |
| 2sealed | 452 | Kosmalski, Dawid (1518) | Won 2-1 | +161627 |
| 3sealed | 250 | Leroy, Quentin 7172 (1495) | Lost 0-2 | -201607 |
| 4sealed | 215 | Hocedez, Corentin (1525) | Won 2-0 | +171624 |
| 5sealed | 159 | Michalski, Radoslaw (1460) | Lost 0-2 | -211603 |
| 6sealed | 199 | Leva, Tommaso (1583) | Lost 0-2 | -191584 |
| 7sealed | 353 | Flasinski, Remigiusz (1505) | Lost 0-2 | -191565 |
| top | average opponent: 1501record: 3-4 | new rating: 1565 | ||
| Grand Prix London 2019 (WAR sealed) | starting rating: 1632 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 260 | Andresier, Theo (1545) | Lost 1-2 | -191613 |
| A2sealed | 244 | Pilny, Georg (1464) | Won 2-0 | +151628 |
| A3sealed | 132 | Ekstrom, Per (1582) | Lost 1-2 | -191609 |
| A4sealed | 169 | Ponza, Valerio (1483) | Lost 0-2 | -201589 |
| A5sealed | 160 | Ripoll, Guillaume (1475) | Won 2-0 | +161605 |
| D1sealed | 1127 | Majid, Abdul (1484) | Lost 1-2 | -211584 |
| D2sealed | 1251 | Tillmann, Dominik (1450) | Won 2-0 | +161600 |
| D3sealed | 1208 | De Swarte, Daniel (1538) | Lost 1-2 | -191581 |
| D4sealed | 1183 | Findlay, Robert (1436) | Won 2-0 | +151596 |
| top | average opponent: 1495record: 4-5 | new rating: 1596 | ||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1692 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1055 | De Rose, Nicola (1500) | Lost 0-2 | -211671 |
| 2sealed | 1083 | Tomelitsch, Patrick (1790) | Lost 1-2 | -161655 |
| 3sealed | 1130 | Hoyer, Michel (1452) | Lost 1-2 | -221633 |
| 4sealed | 1114 | Becker, Pascal-Nicolas (1379) | Lost 0-2 | -221611 |
| 5sealed | 1021 | Moravkova, Pavlina (1429) | Won 2-0 | +141625 |
| 6sealed | 884 | Roca Peinado, Ruben Elias (1448) | Won 2-0 | +151640 |
| 7sealed | 727 | Blanke, Miriamel (1437) | Lost 1-2 | -211619 |
| 8sealed | 595 | Bunka, Cyrill (1367) | Won 2-0 | +131632 |
| top | average opponent: 1475record: 3-5 | new rating: 1632 | ||
| Grand Prix Barcelona 2018 (modern) | starting rating: 1707 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 164 | Martin, Francisco Javier (1633) | Won 2-0 | +171724 |
| 2modern | 142 | Gonzalez Vega, Isaac (1518) | Lost 0-2 | -221702 |
| 3modern | 464 | Rogiers, Sander (1593) | Lost 1-2 | -201682 |
| 4modern | 578 | Seeman, Tobey (1484) | Won 2-0 | +141696 |
| 5modern | 435 | Valiente, Pablo (1500) | Won 2-0 | +151711 |
| 6modern | 246 | Zivec, Josef (1792) | Won 2-0 | +191730 |
| 7modern | 333 | Hirsila, Matias (1610) | Won 2-1 | +161746 |
| 8modern | 230 | Barbero, Joseph (1446) | Won 2-0 | +131759 |
| 9modern | 97 | Barcelona, Juan Carlos (1568) | Won 2-0 | +141773 |
| 10modern | 79 | Rodenas Ferrando, Adrian (1594) | Lost 1-2 | -211752 |
| 11modern | 87 | Eloranta, Joonas (1661) | Won 2-0 | +161768 |
| 12modern | 80 | Guillen Torres, Jaime (1567) | Lost 1-2 | -211747 |
| 13modern | 97 | Depraz, Jean-Emmanuel (1976) | Lost 1-2 | -141733 |
| 14modern | 94 | Purvis, Marc (1636) | Lost 1-2 | -201713 |
| 15modern | 121 | Vega Rodriguez, Eddy (1546) | Lost 0-2 | -211692 |
| top | average opponent: 1608record: 8-7 | new rating: 1692 | ||
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 277 | Mortsjo, Kristoffer (1500) | Won 2-0 | +171598 |
| 2modern | 273 | Groes, Philip (1710) | Won 2-0 | +201618 |
| 3modern | 312 | Zee, Carl (1538) | Won 2-0 | +161634 |
| 4modern | 185 | Stihle, Julien (1792) | Lost 1-2 | -151619 |
| 5modern | 136 | Drogemuller, Kauri (1557) | Lost 0-2 | -191600 |
| 6modern | 420 | Van Der Beek, Laurens (1518) | Lost 1-2 | -191581 |
| 7modern | 640 | Kukowski, Paul (1427) | Won 2-1 | +151596 |
| 8modern | 423 | Moser, Christoph (1555) | Won 2-1 | +171613 |
| 9modern | 200 | van de Veen, Steffen (1760) | Won 2-0 | +211634 |
| 10modern | 374 | Gamisch, Max (1568) | Won 2-0 | +171651 |
| 11modern | 385 | Gurney, James (1677) | Won 2-0 | +181669 |
| 12modern | 334 | Zubovich, Stanislau (1789) | Lost 1-2 | -161653 |
| 13modern | 407 | Jakobsson, Thomas (1572) | Won 2-1 | +171670 |
| 14modern | 360 | de Jonge, Rob (1672) | Won 2-0 | +181688 |
| 15modern | 329 | Kuznetcov, Artem (1752) | Won 2-0 | +191707 |
| top | average opponent: 1626record: 11-4 | new rating: 1707 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 149 | Wagner, Rob C (1762) | Lost 0-2 | -151606 |
| 3standard | 648 | Marti, Bernat (1500) | Lost 1-2 | -201586 |
| 4standard | 711 | Zimmermann, Bob (1463) | Won 2-0 | +161602 |
| 5standard | 488 | Fridriksson, Marteinn (1532) | Lost 0-2 | -201582 |
| 6standard | 593 | Hadfield, Aaron (1483) | Lost 1-2 | -191563 |
| 7standard | 600 | Stok, Alex (1822) | Lost 1-2 | -141549 |
| 8standard | 523 | Huang, Vit (1444) | Won 2-0 | +161565 |
| 9standard | 425 | Stobart, Gareth (1463) | Won 2-0 | +161581 |
| top | average opponent: 1559record: 3-5 | new rating: 1581 | ||
| Grand Prix Paris 2015 (DTK standard) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 92 | Tropee, Benjamin (1483) | Won 2-0 | +161614 |
| 2standard | 130 | Widawski, William (1518) | Won 2-1 | +161630 |
| 3standard | 43 | Fonteyne, Aron (1805) | Won 2-1 | +211651 |
| 4standard | 78 | Faber, Manuel (1769) | Lost 0-2 | -161635 |
| 5standard | 220 | Faustyn, Maciej (1591) | Won 2-0 | +181653 |
| 6standard | 187 | Berger, Maximilien (1752) | Lost 0-2 | -171636 |
| 7standard | 289 | Wellinger, Serafin (1759) | Lost 0-2 | -151621 |
| 8standard | 249 | Millet, Gael (1501) | Won 2-1 | +151636 |
| 9standard | 205 | Hocquemiller, Arnaud (1787) | Lost 1-2 | -151621 |
| top | average opponent: 1663record: 5-4 | new rating: 1621 | ||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 270 | Koukal, Josef (1587) | Lost 0-2 | -161500 |
| 4standard | 302 | Djogouros, Michalis (1508) | Won 2-0 | +181518 |
| 5standard | 175 | Nabil, Mohamed (1563) | Won 2-0 | +191537 |
| 6standard | 90 | Campbell, Gary (1667) | Won 2-0 | +201557 |
| 7standard | 3 | Goertzen, Dominik (1648) | Won 2-1 | +201577 |
| 8standard | 48 | Dienelt, Ivo (1488) | Won 2-1 | +161593 |
| 9standard | 28 | Asselin, Philippe (1839) | Lost 0-2 | -131580 |
| 10standard | 50 | Morzyc, Krzysztof (1599) | Lost 1-2 | -181562 |
| 11standard | 59 | Krautmann, Wenzel (1906) | Lost 0-2 | -121550 |
| 12standard | 75 | Brozek, Petr (1826) | Won 2-1 | +231573 |
| 13standard | 52 | Wall, Oskar (1781) | Won 2-1 | +221595 |
| 14standard | 39 | Rabie, Mikael (1755) | Won 2-0 | +201615 |
| 15standard | 41 | Kazanskis, Viktors (1641) | Lost 0-2 | -171598 |
| top | average opponent: 1677record: 8-5 | new rating: 1598 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 34 | Potoczek, Wojciech (1485) | Lost 0-2 | -181466 |
| 2sealed | 341 | Marchlewski, Jakub (1484) | Lost 0-2 | -171449 |
| 3sealed | 453 | Zamecnik, Georg (1465) | Won 2-0 | +181467 |
| 4sealed | 403 | Kociecki, Cyryl M (1744) | Won 2-1 | +231490 |
| 5sealed | 257 | Bjernelind, Lukas (1528) | Won 2-0 | +191509 |
| 6sealed | 286 | Hammarlund Corselli, Michael (1615) | Won 2-0 | +201529 |
| 7sealed | 106 | Brodzak, Michal (1581) | Won 0-0 | +191548 |
| 8sealed | 73 | Patrakov, Nikolay (1528) | Won 2-1 | +171565 |
| 9sealed | 83 | Myszkowiak, Maciej (1584) | Won 2-0 | +191584 |
| 10draft | 1 | van den Brink, Henry (1731) | Lost 0-2 | -161568 |
| 11draft | 7 | Faustyn, Maciej (1548) | Lost 0-2 | -181550 |
| 13draft | 34 | Andrzejewski, Alan (1630) | Lost 0-2 | -171533 |
| 15draft | 55 | Wieczorek, Konrad (1594) | Lost 1-2 | -171516 |
| top | average opponent: 1578record: 7-6 | new rating: 1516 | ||
| Grand Prix Malmo 2012 (AVR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 585 | Hermansson, Emil (1636) | Won 2-1 | +201520 |
| 2sealed | 598 | Lindner, Marcus (1556) | Lost 0-2 | -171503 |
| 3sealed | 615 | Pedersen, Lucas B (1499) | Won 2-0 | +181521 |
| 4sealed | 569 | Larsen, Christoffer (1624) | Lost 0-2 | -161505 |
| 5sealed | 617 | Venzik, Ladislav (1421) | Won 2-1 | +161521 |
| 6sealed | 626 | Nielsen, Simon (1519) | Lost 1-2 | -181503 |
| 7sealed | 606 | Holtin, Benjamin (1544) | Lost 1-2 | -171486 |
| 8sealed | 619 | Kalamarz, Lukasz (1398) | Won 2-1 | +161502 |
| 9sealed | 588 | Zhidnikov, Ilia (1502) | Lost 0-2 | -181484 |
| top | average opponent: 1522record: 4-5 | new rating: 1484 | ||