Duch, Sigurd
Current rating: 1689
Record: 34-26-1
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 132 | Bende, Tobias (1500) | Lost 0-2 | -191542 |
| 2sealed | 473 | Blanke, Miriamel (1465) | Won 2-0 | +171559 |
| 3sealed | 505 | Kemp, Ask (1503) | Won 2-0 | +171576 |
| 4sealed | 318 | Tarnqvist, Nils (1480) | Lost 1-2 | -201556 |
| 5sealed | 383 | Pedersen, Thomas (1691) | Won 2-0 | +211577 |
| 6sealed | 365 | Garcia, Rafael 6547 (1518) | Won 2-0 | +171594 |
| 7sealed | 172 | Korevaar, Martijn (1696) | Won 2-1 | +191613 |
| 8sealed | 79 | Fernandez, Manuel Alejandro (1772) | Won 2-1 | +211634 |
| 9sealed | 75 | Hansen, Martin (1695) | Lost 1-2 | -171617 |
| 10draft | 100 | Borresen, Lars (1495) | Lost 0-0 | -201597 |
| 11draft | 56 | Vara, Andres (1583) | Won 2-0 | +181615 |
| 12draft | 104 | Van Mierlo, Pepijn (1577) | Won 2-0 | +171632 |
| 13draft | 24 | Semkin, Alexander (1711) | Won 2-0 | +201652 |
| 14draft | 21 | Mygh, Sebastian (1845) | Won 2-0 | +211673 |
| 15draft | 22 | Bach Wolthers, Nikolaj (1581) | Won 2-0 | +161689 |
| top | average opponent: 1607record: 11-4 | new rating: 1689 | ||
| Grand Prix London 2019 (WAR sealed) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| B1sealed | 938 | Pollard, Kieran (1500) | Won 2-0 | +181515 |
| B2sealed | 1001 | Schwartzkopff, Julian (1475) | Won 2-1 | +171532 |
| B3sealed | 896 | Zellweger, Fabien (1544) | Won 2-0 | +181550 |
| B4sealed | 913 | Moreno, Tais (1535) | Lost 1-2 | -181532 |
| B5sealed | 941 | Addario, Riccardo (1660) | Won 2-1 | +201552 |
| B6sealed | 917 | Ishikawa, Ethan (1492) | Draw 1-1 | -11551 |
| B7sealed | 909 | Marti, Ruben (1634) | Won 2-0 | +201571 |
| D1sealed | 1184 | Gorgeri, Alessio (1432) | Won 2-0 | +151586 |
| D2sealed | 1076 | Renwick, Mat (1518) | Lost 1-2 | -191567 |
| D3sealed | 1188 | O'Sullivan, Alex (1288) | Won 2-1 | +131580 |
| D4sealed | 1101 | Kaya, Baris (1556) | Lost 0-2 | -191561 |
| top | average opponent: 1512record: 7-3-1 | new rating: 1561 | ||
| Grand Prix Copenhagen 2018 (DOM standard) | starting rating: 1492 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 145 | Petersen, Marc (1552) | Won 2-1 | +191511 |
| 2standard | 2 | Kubis, Jan (1464) | Lost 0-2 | -191492 |
| 3standard | 223 | Koivaara, Pekka (1502) | Won 2-0 | +181510 |
| 4standard | 119 | Thormann Jensen, Rasmus (1482) | Won 2-1 | +181528 |
| 5standard | 89 | Reling, Andreas (1763) | Lost 1-2 | -141514 |
| 6standard | 121 | Andren, Lukas (1551) | Lost 0-2 | -171497 |
| top | average opponent: 1552record: 3-3 | new rating: 1497 | ||
| Grand Prix London 2018 (RIX limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 396 | Estratti, Samuele (1690) | Lost 1-2 | -131434 |
| 2sealed | 531 | Pickles, Steven (1337) | Won 2-1 | +161450 |
| 3sealed | 532 | Leuvennink, Bernard (1478) | Lost 0-2 | -171433 |
| 4sealed | 720 | Dyson, Greg (1631) | Won 2-1 | +211454 |
| 5sealed | 668 | Faber, Manuel (1703) | Won 2-0 | +231477 |
| 6sealed | 583 | Luescher, Sascha (2018) | Won 2-1 | +271504 |
| 7sealed | 297 | Sacks, Neal (1856) | Lost 0-2 | -121492 |
| top | average opponent: 1673record: 4-3 | new rating: 1492 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 327 | McGoldrick, Leif (1462) | Won 2-0 | +191430 |
| 2sealed | 287 | Kahn, Max (1528) | Won 2-1 | +191449 |
| 3sealed | 49 | Li, Tianen (1483) | Won 2-1 | +191468 |
| 4sealed | 146 | Baker, Chris (1702) | Lost 1-2 | -141454 |
| 5sealed | 336 | Visco, David (1824) | Lost 0-2 | -111443 |
| 6sealed | 399 | Bagnall, Justin (1565) | Won 2-0 | +201463 |
| 7sealed | 444 | Gilison, Daniel (1348) | Lost 0-2 | -201443 |
| 8sealed | 456 | Pichardo, Luis (1589) | Won 2-0 | +201463 |
| 9sealed | 337 | Clark, Ryan (1575) | Lost 0-2 | -161447 |
| top | average opponent: 1564record: 5-4 | new rating: 1447 | ||
| Grand Prix Stockholm 2016 (EMN limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 381 | Segerlund, Oskar (1500) | Lost 1-2 | -181465 |
| 2sealed | 416 | Thonsri, Emil (1452) | Lost 1-2 | -181447 |
| 3sealed | 534 | Borger, Bryan (1479) | Lost 1-2 | -171430 |
| 4sealed | 549 | Kummetz, Malte (1380) | Lost 1-2 | -191411 |
| top | average opponent: 1453record: 0-4 | new rating: 1411 | ||
| Grand Prix Copenhagen 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 355 | Danieli, Niv (1588) | Lost 1-2 | -161484 |
| 2modern | 415 | Ramsey, Dave (1474) | Lost 0-2 | -191465 |
| 3modern | 606 | Bal, Robbert (1508) | Won 2-1 | +191484 |
| 4modern | 553 | Starcevic, Boris (1403) | Won 2-0 | +171501 |
| 5modern | 320 | Bleif, Moritz (1507) | Won 2-1 | +181519 |
| 6modern | 287 | Bosch, Lluis Maria (1518) | Lost 1-2 | -181501 |
| 7modern | 356 | Raftery, Roy (1562) | Won 2-0 | +191520 |
| 8modern | 248 | Farlevik, Richard (1454) | Lost 1-2 | -191501 |
| 9modern | 257 | Rabstad, Kristoffer (1511) | Lost 0-2 | -181483 |
| top | average opponent: 1503record: 4-5 | new rating: 1483 | ||