Merkt, Ruven
Current rating: 1702 (#6370)
Record: 41-29-4
| Grand Prix Dortmund 2006 (GPT limited) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Finke, Christoph (1500) | Won 2-0 | +161637 |
| 2sealed | 33 | Moises, Sebastian (1563) | Won 2-0 | +161653 |
| 3sealed | 23 | Perman, Eugen (1532) | Won 2-1 | +161669 |
| 4sealed | 11 | Rensonnet, Pierre (1581) | Won 2-1 | +161685 |
| 5sealed | 22 | Dannowski, Carsten (1529) | Won 2-1 | +161701 |
| 6sealed | 3 | Meulders, Fried (1629) | Won 2-0 | +161717 |
| 7sealed | 1 | Bohny, Nico (1692) | Lost 1-2 | -181699 |
| 8sealed | 10 | van Medevoort, Robert (1747) | Won 2-0 | +191718 |
| 9sealed | 8 | Nahodil, Petr (1796) | Won 2-0 | +191737 |
| 10draft | 55 | Le Montagner, Mathieu (1792) | Won 2-0 | +191756 |
| 11draft | 58 | Rothaupt, Marco (1764) | Lost 1-2 | -181738 |
| 12draft | 12 | Seiter, Florian (1719) | Won 2-1 | +181756 |
| 13draft | 15 | Wigge, Mathias (1861) | Lost 1-2 | -161740 |
| 14draft | 28 | Bohny, Nico (1724) | Lost 1-2 | -191721 |
| 15draft | 26 | Sauerborn, Moritz (1659) | Lost 0-2 | -191702 |
| top | average opponent: 1673record: 10-5 | new rating: 1702 | ||
| Grand Prix Hasselt 2006 (RAV limited) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Eiesland, Jon (1541) | Won 2-0 | +171598 |
| 2sealed | 15 | Rizner, Andrej (1618) | Won 2-1 | +181616 |
| 3sealed | 68 | Rodano, Orlando (1686) | Won 2-1 | +201636 |
| 4sealed | 45 | Rasir, Tobias (1627) | Lost 0-2 | -181618 |
| 5sealed | 69 | Dictus, Mark (1675) | Won 2-1 | +191637 |
| 6sealed | 39 | Siron, Geoffrey (1918) | Lost 1-2 | -131624 |
| 7sealed | 92 | Holsteens, Tommy (1540) | Won 2-1 | +161640 |
| 8sealed | 39 | Zadrazil, Michal (1564) | Lost 1-2 | -191621 |
| top | average opponent: 1646record: 5-3 | new rating: 1621 | ||
| Grand Prix Leipzig 2005 (BOK limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Lebeda, Jiri (1620) | Won 2-1 | +191560 |
| 2sealed | 35 | Hofmann, Alex (1518) | Won 2-0 | +181578 |
| 3sealed | 9 | Hoffmann, Krzysztof (1512) | Won 2-1 | +161594 |
| 4sealed | 38 | Joens, Klaus (1557) | Lost 1-2 | -181576 |
| 5sealed | 81 | Thaler, Sebastian (1715) | Lost 0-2 | -161560 |
| 6sealed | 96 | Fiedler, Kai (1517) | Won 2-1 | +171577 |
| 7sealed | 71 | Groth, Timo (1702) | Won 2-1 | +211598 |
| 8sealed | 42 | Sader, Andre (1601) | Won 2-1 | +181616 |
| 9sealed | 36 | Reitbauer, David (1668) | ID | 01616 |
| 10draft | 45 | Brieden, Christian (1582) | Draw 1-1 | -11615 |
| 11draft | 32 | Vilm, Jerome (1721) | Lost 0-2 | -161599 |
| 12draft | 59 | Korber, Philipp (1520) | Won 2-0 | +171616 |
| 13draft | 59 | Heigerer, Stefan (1608) | Lost 0-2 | -191597 |
| 15draft | 41 | Hoelzl, Johannes (1672) | Lost 1-2 | -161581 |
| top | average opponent: 1608record: 7-5-2 | new rating: 1581 | ||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 20 | Wong, Man Hin (1518) | Won 2-1 | +171577 |
| 3extended | 15 | Utz, Kai (1600) | Won 2-1 | +191596 |
| 4extended | 29 | Negrini, Matteo (1480) | Won 2-1 | +151611 |
| 5extended | 47 | Budde, Kai (1760) | Lost 1-2 | -151596 |
| 6extended | 33 | Trobia, Federico (1606) | Lost 1-2 | -181578 |
| 7extended | 183 | Sondag, Guido (1543) | Lost 0-2 | -181560 |
| 8extended | 179 | Smets, Daan (1517) | Lost 0-2 | -191541 |
| top | average opponent: 1575record: 3-4 | new rating: 1541 | ||
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | Suppan, Benedikt (1500) | Won 2-0 | +171592 |
| 2sealed | 191 | Koch, Florian (1537) | Lost 0-2 | -191573 |
| 3sealed | 324 | Libersky, Miroslav (1492) | Lost 0-2 | -191554 |
| 4sealed | 355 | Vidic, Andreas (1402) | Won 2-0 | +151569 |
| 5sealed | 238 | Koy, Adrian (1485) | Draw 0-0 | -21567 |
| 6sealed | 261 | Bakos, Robert (1501) | Won 2-0 | +171584 |
| 7sealed | 195 | Baierhofer, Horst (1369) | Lost 1-2 | -221562 |
| 8sealed | 200 | Kunwald, Christian (1501) | Lost 1-2 | -191543 |
| 9sealed | 189 | Lelovsky, Marek (1475) | Won 2-0 | +171560 |
| top | average opponent: 1474record: 4-4-1 | new rating: 1560 | ||
| Grand Prix Rimini 2004 (Mirrodin block) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 165 | Negrini, Matteo (1518) | Draw 1-1 | -11547 |
| 2block | 190 | Menni, Matteo (1500) | Won 2-1 | +171564 |
| 3block | 120 | Gresta, Hermes (1517) | Lost 1-2 | -191545 |
| 4block | 231 | Mondino, Massimiliano (1500) | Won 2-1 | +171562 |
| 5block | 163 | Mazzone, Luca (1486) | Won 2-0 | +171579 |
| 6block | 109 | Fabbretti, Pier Paolo (1469) | Lost 1-2 | -201559 |
| 7block | 149 | Spirelli, Mattia (1518) | Lost 1-2 | -191540 |
| 8block | 152 | Wijnen, Jan (1529) | Won 2-0 | +181558 |
| 9block | 111 | Agostani, Andrea (1519) | Won 2-0 | +171575 |
| top | average opponent: 1506record: 5-3-1 | new rating: 1575 | ||
| Grand Prix Zurich 2004 (Mirrodin block) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 140 | Imhof, Sebastian (1500) | Won 2-1 | +181502 |
| 2block | 10 | Peter, Michael (1461) | Lost 1-2 | -191483 |
| 3block | 113 | Bevere, Gianluca (1506) | Won 2-1 | +191502 |
| 4block | 98 | Pauze, Frederic (1588) | Won 2-0 | +191521 |
| 5block | 115 | Giz, Fabrice (1538) | Won 2-1 | +191540 |
| 6block | 32 | Jurkovic, Robert (1672) | Won 2-1 | +201560 |
| 7block | 23 | Canavesi, Emanuele (1878) | Lost 0-2 | -121548 |
| top | average opponent: 1592record: 5-2 | new rating: 1548 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 149 | Janik, Fabian (1468) | Lost 1-2 | -191481 |
| 2sealed | 303 | David, Pierre (1481) | Won 2-0 | +181499 |
| 3sealed | 201 | Haberkorn, Pascal (1662) | Lost 0-2 | -151484 |
| 4sealed | 377 | Wagner, Stefan (1483) | Won 2-0 | +181502 |
| 5sealed | 234 | Korber, Philipp (1469) | Lost 1-2 | -181484 |
| 6sealed | 278 | Schroker, Martin (1484) | Draw 1-1 | 01484 |
| top | average opponent: 1508record: 2-3-1 | new rating: 1484 | ||