Hedemann, Marcel
Current rating: 1546
Record: 32-31
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2198 | Van Delft, Christiaan (1500) | Won 2-0 | +181505 |
| 2sealed | 2007 | Tichelaar, Dimas (1518) | Won 2-1 | +181523 |
| 3sealed | 2132 | Roberti, Tijmen (1533) | Won 2-1 | +181541 |
| 4sealed | 2080 | Johnson, Stuart (1461) | Won 2-0 | +171558 |
| 5sealed | 2019 | Hahn, Fabian (1855) | Lost 0-2 | -131545 |
| 6sealed | 2101 | Vanwalleghem, Kevin (1589) | Won 2-1 | +191564 |
| 7sealed | 2046 | Heffernan, Stephen (1504) | Lost 0-2 | -191545 |
| 8sealed | 2091 | Joly, Olivier (1573) | Won 2-0 | +181563 |
| 9sealed | 2051 | van der Linden, Bob (1579) | Lost 0-1 | -171546 |
| top | average opponent: 1568record: 6-3 | new rating: 1546 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 183 | Hoss, Michael (1418) | Won 2-0 | +161519 |
| 2modern | 357 | den Adel, Elwin (1514) | Lost 0-2 | -181501 |
| 3modern | 392 | Reiffenstein, Jakob (1500) | Lost 1-2 | -181483 |
| 4modern | 553 | Pisch, Andreas (1577) | Won 2-1 | +201503 |
| 5modern | 417 | Biela, Marius (1608) | Lost 0-2 | -161487 |
| top | average opponent: 1523record: 2-3 | new rating: 1487 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 148 | Demmel, David (1500) | Lost 0-2 | -191502 |
| 2standard | 277 | Marczak, Ralph (1482) | Won 2-0 | +181520 |
| 3standard | 276 | Inerot, Niclas (1425) | Won 2-0 | +161536 |
| 4standard | 133 | Van Nieuwenhove, Jan (1696) | Lost 1-2 | -151521 |
| 5standard | 300 | Ernst, Daniel (1498) | Lost 1-2 | -181503 |
| top | average opponent: 1520record: 2-3 | new rating: 1503 | ||
| Grand Prix Lille 2012 (DKA standard) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 77 | Luong, Hai-Hau (1488) | Won 2-0 | +171548 |
| 3standard | 33 | Gerecke, Piet (1515) | Lost 1-2 | -191529 |
| 4standard | 160 | Richet, Benoit (1487) | Won 1-0 | +171546 |
| 5standard | 96 | Frage, Damien (1521) | Won 2-1 | +181564 |
| 6standard | 36 | Juza, Martin (2072) | Lost 1-2 | -101554 |
| 7standard | 156 | van den Brink, Peter (1659) | Lost 0-2 | -161538 |
| 8standard | 139 | Mogini, Andrea (1550) | Lost 0-2 | -171521 |
| top | average opponent: 1613record: 3-4 | new rating: 1521 | ||
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 607 | de Beurs, Anne (1500) | Won 2-0 | +181551 |
| 2legacy | 731 | Schmidt, Philipp Janos (1487) | Won 2-1 | +171568 |
| 3legacy | 693 | Rieff, Menno (1652) | Won 2-1 | +191587 |
| 4legacy | 702 | Daudier, Jonathan (1461) | Lost 1-2 | -201567 |
| 5legacy | 792 | Gilles, Maxime (1494) | Lost 0-2 | -191548 |
| 6legacy | 774 | Marion, Damien (1602) | Lost 0-2 | -171531 |
| top | average opponent: 1533record: 3-3 | new rating: 1531 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Borgehynck, Matthias (1445) | Won 2-1 | +161535 |
| 2sealed | 189 | Bruegemann, Dirk (1518) | Lost 1-2 | -181517 |
| 3sealed | 166 | Ammermann, Kai (1635) | Lost 1-2 | -161501 |
| 4sealed | 327 | Allritz, Diana (1349) | Won 2-0 | +161517 |
| 5sealed | 237 | Potoczek, Wojciech (1507) | Won 2-0 | +171534 |
| 6sealed | 188 | Hofmann, Florian (1523) | Won 2-0 | +181552 |
| 7sealed | 163 | Bard, Christian (1507) | Lost 1-2 | -191533 |
| top | average opponent: 1498record: 4-3 | new rating: 1533 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 202 | Sida, Jean-luc (1500) | Won 2-0 | +181508 |
| 2standard | 99 | Ruzicka, Marek (1566) | Lost 0-2 | -171491 |
| 3standard | 287 | Rossi, Kevin (1639) | Won 2-0 | +211512 |
| 4standard | 160 | Pouliquen, Camille (1502) | Lost 1-2 | -191493 |
| 5standard | 207 | Pereira, Mario (1560) | Won 2-1 | +201513 |
| 6standard | 175 | Kraftling, Petter (1550) | Won 2-0 | +181531 |
| 7standard | 137 | Luddecke, Florian (1506) | Won 2-1 | +181549 |
| 8standard | 53 | Koska, Adam (1934) | Lost 1-2 | -111538 |
| 9standard | 93 | Moate, Matthew (1497) | Lost 1-2 | -191519 |
| top | average opponent: 1584record: 5-4 | new rating: 1519 | ||
| Grand Prix Hanover 2009 (extended) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 47 | Chandrinos, Giorgos (1490) | Won 2-0 | +171520 |
| 2extended | 84 | Stihle, Laurent (1535) | Won 2-0 | +191539 |
| 3extended | 46 | Blocher, Markus (1567) | Lost 1-2 | -181521 |
| 4extended | 103 | Strom, Tobias (1679) | Lost 0-0 | -151506 |
| 5extended | 123 | Corbera Bellalta, Marc (1665) | Won 2-1 | +211527 |
| 6extended | 131 | Steinbach, Sven (1523) | Won 2-0 | +181545 |
| 7extended | 88 | Puissant, Stephane (1394) | Lost 1-2 | -211524 |
| 8extended | 89 | Tochacek, Daniel (1509) | Lost 1-2 | -181506 |
| 9extended | 87 | Jickeli, Christian (1612) | Lost 0-2 | -161490 |
| top | average opponent: 1553record: 4-5 | new rating: 1490 | ||
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Jarmula, Juliusz (1500) | Won 2-0 | +181518 |
| 2sealed | 83 | Hanna, Abdo (1500) | Lost 1-2 | -181500 |
| 3sealed | 150 | Batteau, Cedric (1508) | Lost 0-2 | -181482 |
| 4sealed | 236 | Linssen-Mestrom, Monique (1476) | Won 2-0 | +181500 |
| 5sealed | 195 | Jurkovic, Robert (1727) | Won 2-0 | +221522 |
| 6sealed | 109 | Mior, Danial Z (1457) | Lost 0-2 | -191503 |
| top | average opponent: 1528record: 3-3 | new rating: 1503 | ||