Petersen, Marc
Current rating: 1511
Record: 23-23-2
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 298 | Gijselhart, Joost (1430) | Lost 0-2 | -201533 |
| 2sealed | 656 | Gschossmann, Christoph (1583) | Won 2-1 | +191552 |
| 3sealed | 504 | Den Haan, Antoine (1501) | Lost 0-2 | -191533 |
| 4sealed | 606 | Van De Velde, Artho (1487) | Won 2-0 | +171550 |
| 5sealed | 434 | Hocquemiller, Vincent (1525) | Lost 1-2 | -181532 |
| 6sealed | 476 | D'Eredita, Gianluca (1434) | Lost 0-2 | -201512 |
| 7sealed | 405 | Habedank, Martin (1462) | Lost 0-2 | -191493 |
| 8sealed | 347 | Van Der Burg, Marc (1483) | Won 2-1 | +181511 |
| top | average opponent: 1488record: 3-5 | new rating: 1511 | ||
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 349 | Mygh, Sebastian (1811) | Lost 0-2 | -141579 |
| 2sealed | 475 | Silander, Marius (1431) | Won 2-1 | +151594 |
| 3sealed | 378 | Gustafsson, Kristian (1453) | Lost 0-2 | -211573 |
| 4sealed | 556 | Cajar, Mads (1481) | Won 2-1 | +171590 |
| 5sealed | 329 | Grossholz, Ivo (1690) | Lost 0-2 | -171573 |
| 6sealed | 393 | Agild, Andreas (1428) | Lost 1-2 | -201553 |
| 7sealed | 349 | Petersdorf, Benjamin (1655) | Lost 1-2 | -161537 |
| 8sealed | 283 | Bethune, Jorn (1454) | Won 2-1 | +161553 |
| top | average opponent: 1550record: 3-5 | new rating: 1553 | ||
| Grand Prix Copenhagen 2018 (DOM standard) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 145 | Duch, Sigurd (1492) | Lost 1-2 | -191533 |
| 2standard | 165 | Christiansen, Kim Klitgaard (1482) | Lost 0-2 | -191514 |
| 3standard | 358 | Hilfiker, Florian (1512) | Won 2-1 | +181532 |
| 4standard | 304 | Semkin, Alexander (1769) | Won 2-1 | +221554 |
| 5standard | 264 | Ostman, Anders (1494) | Won 2-0 | +171571 |
| 6standard | 148 | Groot, Wessel (1620) | Lost 1-2 | -171554 |
| 7standard | 231 | Juhlin Rosen, Nicklas (1498) | Won 2-0 | +171571 |
| 8standard | 147 | van der Linden, Leon (1792) | Won 2-0 | +221593 |
| top | average opponent: 1582record: 5-3 | new rating: 1593 | ||
| Grand Prix London 2018 (RIX limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Schuer, Alan (1484) | Won 2-1 | +171534 |
| 2sealed | 226 | Dommange, Xavier (1510) | Won 2-0 | +181552 |
| 3sealed | 282 | Amateis, Alessandro (1560) | Lost 0-2 | -181534 |
| 4sealed | 432 | Salzmann, Tim (1564) | Won 2-0 | +191553 |
| 5sealed | 235 | Matousek, Pavel (1792) | Lost 0-2 | -141539 |
| 6sealed | 386 | Lee, Wing Tat (1713) | Won 2-0 | +211560 |
| 7sealed | 283 | Burke, Joel (1634) | Won 2-1 | +191579 |
| 8sealed | 124 | Gamba, Fabio (1721) | Won 2-1 | +211600 |
| 9sealed | 109 | Brancewicz, Michal (1715) | Lost 0-2 | -161584 |
| 10draft | 51 | Castro, Manuel (1629) | Lost 1-2 | -171567 |
| 11draft | 158 | Saxton, Dan (1506) | Won 2-1 | +171584 |
| 12draft | 88 | Lenander, Richard (1621) | Lost 1-2 | -181566 |
| 13draft | 46 | Bollinger, Isabelle (1609) | Lost 1-2 | -171549 |
| 14draft | 39 | Connolly, Oliver (1498) | Won 2-1 | +171566 |
| 15draft | 37 | Arndt, Georg (1763) | Lost 0-2 | -141552 |
| top | average opponent: 1621record: 8-7 | new rating: 1552 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 881 | Vignolles, Olivier (1385) | Lost 0-2 | -201480 |
| 2sealed | 1065 | Van De Gevel, Axel (1483) | Won 2-1 | +181498 |
| 3sealed | 969 | Pombinho, Fabio (1687) | Lost 1-2 | -151483 |
| 4sealed | 1131 | Capesius, Willi (1410) | Draw 1-1 | -11482 |
| 5sealed | 1077 | Chabrier, Damien (1418) | Won 2-0 | +171499 |
| 6sealed | 983 | Winterbauer, Ralf (1497) | Draw 1-1 | 01499 |
| 7sealed | 967 | Holl, Maximilien (1500) | Won 2-0 | +181517 |
| 8sealed | 897 | Gameiro, Kevin-Romain (1529) | Won 2-0 | +181535 |
| 9sealed | 847 | Richard, Jefferson (1522) | Lost 0-2 | -181517 |
| top | average opponent: 1492record: 4-3-2 | new rating: 1517 | ||