Gruson, Matthieu
Current rating: 1598
Record: 32-28-1
| Grand Prix Lyon 2015 (BFZ limited) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 377 | Clere, Romain (1696) | Won 2-1 | +201637 |
| 2sealed | 150 | Gandy, Philibert (1518) | Won 2-1 | +161653 |
| 3sealed | 121 | Baglin, Arnaud (1931) | Lost 0-2 | -131640 |
| 4sealed | 415 | Riabokon, Oleksii (1505) | Lost 1-2 | -211619 |
| 5sealed | 626 | Looten, Francois (1468) | Lost 0-2 | -211598 |
| top | average opponent: 1624record: 2-3 | new rating: 1598 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 359 | Abey, Josh (1500) | Won 2-0 | +171548 |
| 2sealed | 108 | Dyson, David (1486) | Lost 1-2 | -191529 |
| 3sealed | 548 | Philps, Matthew (1499) | Won 2-0 | +171546 |
| 4sealed | 403 | Boyhan, Aaron (1510) | Won 2-1 | +181564 |
| 5sealed | 410 | Wilson, Ewan (1537) | Won 2-0 | +171581 |
| 6sealed | 102 | Lopez, Oliver (1555) | Won 2-0 | +181599 |
| 7sealed | 153 | Al-Bacha, Wesimo (1987) | Won 2-1 | +241623 |
| 8sealed | 42 | Pichon, Elie (1878) | Lost 0-2 | -131610 |
| 9sealed | 108 | Jaklovsky, Lukas (2067) | Won 2-1 | +261636 |
| 10sealed | 64 | Hart, Thomas (1693) | Lost 0-2 | -171619 |
| 11draft | 34 | Papadopoulos, Nicolas (1507) | Lost 1-2 | -201599 |
| 12draft | 69 | Pearson, Ben 8370 (1561) | Won 2-0 | +171616 |
| 13draft | 76 | Bertin, Oscar (1553) | Lost 0-2 | -191597 |
| 14draft | 57 | Pearson, Ben 8370 (1544) | Won 2-0 | +171614 |
| 15draft | 82 | Bastos, Frederico (1869) | Lost 0-2 | -141600 |
| 16draft | 99 | Lennox-gordon, James (1535) | Won 2-0 | +171617 |
| top | average opponent: 1642record: 10-6 | new rating: 1617 | ||
| Grand Prix Lisbon 2012 (RTR limited) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 662 | Balcells, Josep (1608) | Won 2-0 | +191552 |
| 2sealed | 569 | Elias, Joao (1517) | Won 2-0 | +171569 |
| 3sealed | 543 | Fransen, Bart [BEL] (1422) | Lost 1-2 | -201549 |
| 4sealed | 695 | Garcia Suarez, Sergio (1607) | Won 2-1 | +191568 |
| 5sealed | 622 | Bonfield, Rebecca (1527) | Lost 1-2 | -191549 |
| 6sealed | 642 | Carvalho, Pedro 2 [PRT] (1521) | Lost 1-2 | -181531 |
| top | average opponent: 1534record: 3-3 | new rating: 1531 | ||
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 45 | Urosevic, Stefan (1611) | Lost 0-2 | -181571 |
| 5sealed | 95 | Durand, Guillaume (1609) | Lost 0-2 | -171554 |
| 6sealed | 122 | Jedlicka, Michal (1429) | Won 2-0 | +161570 |
| 7sealed | 114 | Staiger, Wolfgang (1567) | Lost 1-2 | -181552 |
| 8sealed | 116 | Weily, Sam (1492) | Lost 0-2 | -191533 |
| top | average opponent: 1542record: 1-4 | new rating: 1533 | ||
| Grand Prix Lyon 2010 (ROE limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 515 | Oblet, Sylvain (1518) | Won 2-0 | +171573 |
| 3sealed | 520 | Rolin, Christophe (1536) | Won 2-0 | +171590 |
| 4sealed | 510 | Reale, Giuseppe (1672) | Lost 1-2 | -161574 |
| 5sealed | 623 | Filatriau, Franck (1643) | Lost 0-2 | -171557 |
| 6sealed | 652 | Marechal, Ludovic (1521) | Won 0-0 | +181575 |
| 7sealed | 640 | Domingo, Gonzalo (1557) | Lost 1-2 | -191556 |
| 8sealed | 604 | Richard, Armel (1444) | Won 2-1 | +161572 |
| 9sealed | 575 | Falconetti, Matteo (1503) | Won 2-1 | +171589 |
| top | average opponent: 1549record: 5-3 | new rating: 1589 | ||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 796 | Levy, Olivier (1578) | Lost 0-2 | -181533 |
| 3sealed | 883 | Alexandre, Pia (1500) | Won 2-1 | +181551 |
| 4sealed | 768 | Kocsis, Gabor (1794) | Won 2-0 | +221573 |
| 5sealed | 719 | Neirynck, Branco (1562) | Won 2-0 | +181591 |
| 6sealed | 659 | Tuomi, Sami (1716) | Lost 0-2 | -161575 |
| 7sealed | 798 | Goncalves, Luis (1501) | Lost 0-2 | -191556 |
| top | average opponent: 1608record: 3-3 | new rating: 1556 | ||
| Grand Prix Barcelona 2009 (ARB standard) | starting rating: 1583 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 94 | Alvarez Lorenzo, Juan Miguel (1539) | Draw 1-1 | -11582 |
| 4standard | 97 | Boj Perez, Israel (1777) | Won 2-0 | +221604 |
| 5standard | 49 | Juergens, Dorian (1753) | Lost 0-2 | -161588 |
| 6standard | 113 | Sim, Daryl (1509) | Won 2-1 | +171605 |
| 7standard | 71 | Panara, Bruno (1720) | Lost 1-2 | -161589 |
| 8standard | 114 | Bertolin, Marc (1534) | Lost 0-2 | -191570 |
| 9standard | 109 | Rogoz, Tomasz T (1509) | Lost 0-2 | -191551 |
| top | average opponent: 1620record: 2-4-1 | new rating: 1551 | ||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 96 | Vanrie, Wim (1655) | Lost 0-2 | -151485 |
| 3sealed | 208 | Guibert, Clement (1502) | Won 2-1 | +181503 |
| 4sealed | 126 | Guit, Laurent (1527) | Won 1-0 | +191522 |
| 5sealed | 144 | Temoins, Sylvain (1568) | Won 2-0 | +181540 |
| 6sealed | 39 | Ferrero Araujo, Miguel Angel (1537) | Won 2-1 | +181558 |
| 7sealed | 72 | Ottati, Domingo (1758) | Won 2-0 | +221580 |
| 8sealed | 37 | Niemi, Christoffer (1552) | Lost 1-2 | -191561 |
| 9sealed | 68 | Sibast, Rasmus (1758) | Won 2-0 | +221583 |
| top | average opponent: 1607record: 6-2 | new rating: 1583 | ||