Petersen, Marc E
Current rating: 1499
Record: 13-14
| Grand Prix Prague 2017 (AER limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 339 | Sautner, Marcel (1479) | Won 2-0 | +161574 |
| 2sealed | 189 | Platt, Christoph (1704) | Lost 0-2 | -151559 |
| 3sealed | 735 | Kuril, Miroslav (1491) | Won 2-1 | +161575 |
| 4sealed | 309 | Muller, Johannes (1519) | Lost 1-2 | -191556 |
| 5sealed | 698 | Valdes, Cristian (1443) | Lost 1-2 | -201536 |
| 6sealed | 764 | Baptiste, Nicolas (1578) | Lost 0-2 | -171519 |
| 7sealed | 718 | Van Meurs, Sascha (1437) | Lost 1-2 | -201499 |
| top | average opponent: 1522record: 2-5 | new rating: 1499 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 220 | Schwarz, Jens-Oliver (1469) | Won 2-0 | +171520 |
| 2sealed | 112 | Holtmann, Jens (1483) | Won 2-1 | +171537 |
| 3sealed | 120 | Meyer, Aljoscha (1536) | Lost 0-2 | -181519 |
| 4sealed | 152 | Marzano, Pierre (1516) | Won 2-1 | +181537 |
| 5sealed | 108 | Steiner, Stefan (1563) | Won 2-1 | +191556 |
| 6sealed | 108 | Panara, Bruno (1730) | Won 2-1 | +211577 |
| 7sealed | 56 | Schmidt, Thomas (1605) | Lost 0-2 | -181559 |
| 8sealed | 92 | Niznansky, Milan (1506) | Lost 1-2 | -191540 |
| 9sealed | 83 | Sternhuber, Peter (1492) | Won 2-1 | +181558 |
| top | average opponent: 1544record: 6-3 | new rating: 1558 | ||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 48 | Lemoine, Vincent (1799) | Lost 0-2 | -131471 |
| 5sealed | 135 | David, Vincent (1537) | Won 2-1 | +201491 |
| 6sealed | 41 | Juza, Martin (2021) | Lost 1-2 | -101481 |
| 7sealed | 136 | Carlouet, Mathieu (1543) | Lost 0-2 | -161465 |
| 8sealed | 179 | Hue, Cyril (1523) | Won 2-1 | +191484 |
| 9sealed | 107 | Sanson, Geoffroy (1541) | Won 2-0 | +191503 |
| top | average opponent: 1660record: 3-3 | new rating: 1503 | ||
| Grand Prix Copenhagen 2008 (EVE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 155 | Petersen, Mickey (1647) | Lost 0-2 | -151485 |
| 2standard | 229 | Sjogren, Emil (1482) | Lost 0-2 | -181467 |
| 3standard | 256 | Stavnager, Michael (1464) | Won 2-0 | +181485 |
| 4standard | 217 | Hentze, Steffen (1482) | Won 2-0 | +181503 |
| 5standard | 160 | Pedersen, Karina Y (1468) | Lost 1-2 | -191484 |
| top | average opponent: 1509record: 2-3 | new rating: 1484 | ||