Dumontier, Sebastien
Current rating: 1310
Record: 31-43-3
Grand Prix Lyon 2003Grand Prix Brussels 2004Grand Prix Paris 2004Grand Prix Brussels 2008Grand Prix Paris 2008Grand Prix Paris 2009Grand Prix Brussels 2010Grand Prix Lyon 2010Grand Prix Paris 2011Grand Prix Lyon 2012Grand Prix Antwerp 2013Grand Prix Strasbourg 2014Grand Prix Paris 2015Grand Prix Lille 2015
| Grand Prix Lille 2015 (legacy) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 215 | Avril, Francois (1452) | Lost 0-2 | -161351 |
| 2legacy | 583 | Hopkins, William (1448) | Lost 0-2 | -171334 |
| 3legacy | 679 | van den Hanenberg, Frank (1639) | Won 2-1 | +241358 |
| 4legacy | 526 | MARTIAUX, romain (1483) | Lost 0-2 | -161342 |
| 5legacy | 613 | Bruley, Marc (1412) | Lost 1-2 | -171325 |
| 6legacy | 576 | Yu Xu, Lu (1447) | Lost 0-2 | -151310 |
| top | average opponent: 1480record: 1-5 | new rating: 1310 | ||
| Grand Prix Paris 2015 (DTK standard) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 382 | Guerin, Guillaume (1528) | Won 2-1 | +211418 |
| 2standard | 292 | Roekaerts, Wout (1543) | Lost 0-2 | -161402 |
| 3standard | 451 | Winward-Stuart, K. (1464) | Lost 1-2 | -171385 |
| 4standard | 526 | Eichholzer, Marius (1388) | Lost 0-2 | -181367 |
| top | average opponent: 1481record: 1-3 | new rating: 1367 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 39 | Ullrich, Fabian (1500) | Won 2-1 | +191426 |
| 2sealed | 7 | Adler, Patrik (1472) | Lost 0-2 | -171409 |
| 3sealed | 265 | Guenzel, Achim (1606) | Won 2-1 | +221431 |
| 4sealed | 138 | Dobrigna, Joel (1504) | Lost 0-2 | -171414 |
| 5sealed | 319 | Gullung, Damien (1490) | Lost 0-2 | -171397 |
| top | average opponent: 1514record: 2-3 | new rating: 1397 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 141 | Teoh, Chee Kweng (1490) | Lost 0-2 | -181440 |
| 2modern | 428 | Carels, Pieter (1514) | Lost 0-2 | -161424 |
| 3modern | 760 | Woutters, Rutger (1462) | Lost 1-2 | -171407 |
| top | average opponent: 1489record: 0-3 | new rating: 1407 | ||
| Grand Prix Lyon 2012 (modern) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 663 | Sinapi, Laurent (1500) | Won 2-0 | +181511 |
| 2modern | 579 | Chaminade, Florian (1490) | Lost 0-2 | -191492 |
| 3modern | 666 | Coline, Mickael (1570) | Lost 0-2 | -161476 |
| 4modern | 759 | Angolillo, Flavio (1482) | Lost 0-2 | -181458 |
| top | average opponent: 1511record: 1-3 | new rating: 1458 | ||
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 76 | Debenham, Owen M (1500) | Won 2-0 | +171552 |
| 2sealed | 99 | Urosevic, Stefan (1573) | Lost 0-2 | -171535 |
| 3sealed | 170 | Haaksman, Gijsbert (1563) | Lost 1-2 | -181517 |
| 4sealed | 286 | Linder, Anton (1464) | Won 2-1 | +171534 |
| 5sealed | 253 | Louskas, John V (1555) | Lost 0-2 | -181516 |
| 6sealed | 230 | Blanchard, Xavier (1435) | Won 2-0 | +171533 |
| 7sealed | 165 | Petrovski, Ivo (1502) | Lost 0-2 | -191514 |
| 8sealed | 140 | Troendlin, Frederic (1304) | Lost 0-2 | -211493 |
| top | average opponent: 1487record: 3-5 | new rating: 1493 | ||
| Grand Prix Lyon 2010 (ROE limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 41 | Bataille, Nicolas (1426) | Won 2-0 | +161530 |
| 2sealed | 28 | Mercier, Lionel (1655) | Lost 0-2 | -151515 |
| 3sealed | 218 | Terrier, Lucas (1532) | Won 2-0 | +181533 |
| 4sealed | 122 | Lacroix, Yannick (1578) | Won 2-1 | +191552 |
| 5sealed | 77 | Arod, Christophe (1599) | Lost 0-2 | -171535 |
| top | average opponent: 1558record: 3-2 | new rating: 1535 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 104 | Detrain, Maxence (1500) | Won 2-0 | +181534 |
| 2standard | 116 | Lamm, Johannes (1483) | Draw 1-1 | -11533 |
| 3standard | 129 | Maisonneuve, Erwan (1453) | Lost 1-2 | -201513 |
| 4standard | 266 | Aalbers, Friso (1549) | Draw 1-1 | +11514 |
| top | average opponent: 1496record: 1-1-2 | new rating: 1514 | ||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 200 | Sampford, James (1539) | Lost 0-2 | -191556 |
| 2sealed | 333 | Phelizon, Alexandre (1499) | Lost 0-2 | -191537 |
| 3sealed | 404 | Poirat, Gregory (1431) | Won 2-0 | +161553 |
| 4sealed | 340 | Hauchard, Francois (1577) | Lost 0-2 | -181535 |
| 5sealed | 360 | Girard, Jerome (1461) | Lost 0-2 | -191516 |
| top | average opponent: 1501record: 1-4 | new rating: 1516 | ||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 199 | Martin Dit Neuville, Pierre (1500) | Won 2-0 | +171579 |
| 2sealed | 225 | Joets, Mathieu (1503) | Won 2-0 | +161595 |
| 3sealed | 4 | Hocquet, Jerome (1466) | Won 2-0 | +161611 |
| 4sealed | 63 | Longoni, Raphael (1630) | Won 2-0 | +181629 |
| 5sealed | 49 | Wagner, Rob C (1561) | Lost 1-2 | -191610 |
| 6sealed | 85 | Carette, Alexandre (1664) | Lost 0-2 | -171593 |
| 7sealed | 126 | Dagen, Pierre (1576) | Lost 0-2 | -181575 |
| top | average opponent: 1557record: 4-3 | new rating: 1575 | ||
| Grand Prix Brussels 2008 (SHM limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Knevels, Christophe (1500) | Won 2-0 | +171570 |
| 2sealed | 177 | Noorlander, Mark (1463) | Won 2-1 | +161586 |
| 3sealed | 111 | Ritzka, Simon (1492) | Lost 0-2 | -201566 |
| 4sealed | 190 | Letizia, Guillaume (1617) | Lost 1-2 | -171549 |
| 5sealed | 181 | Barclay, Allan (1508) | Lost 1-2 | -181531 |
| 6sealed | 213 | Pinchon, Mathieu (1385) | Won 2-1 | +151546 |
| 7sealed | 162 | Link, Thiemo (1421) | Won 2-0 | +161562 |
| top | average opponent: 1484record: 4-3 | new rating: 1562 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 199 | Caster, Sylvain (1500) | Lost 1-2 | -181497 |
| 2sealed | 233 | Gerards, Remco (1479) | Won 2-0 | +181515 |
| 3sealed | 248 | Vitu, Frederic (1430) | Won 2-0 | +161531 |
| 4sealed | 221 | Bertoni, Nicolas (1520) | Won 2-0 | +181549 |
| 5sealed | 49 | Akritas, Pavlos (1743) | Won 2-0 | +211570 |
| 6sealed | 37 | Kessel, Jens (1607) | Lost 1-2 | -171553 |
| top | average opponent: 1546record: 4-2 | new rating: 1553 | ||
| Grand Prix Brussels 2004 (DST standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 254 | Jungbauer, Rene (1474) | Won 2-0 | +181486 |
| 2standard | 166 | Melichar, Martin (1602) | Won 2-1 | +201506 |
| 3standard | 16 | Vanderschueren, Ryan (1536) | Lost 1-2 | -181488 |
| 4standard | 138 | Marion, Damien (1506) | Won 2-0 | +191507 |
| 5standard | 63 | Blaas, Jasper (1544) | Won 2-0 | +181525 |
| 6standard | 48 | Zalewski, Marcin (1672) | Lost 0-2 | -151510 |
| 7standard | 118 | Tenenbaum, Amiel (1784) | Lost 0-2 | -131497 |
| 8standard | 127 | Ayeni, Kevin (1517) | Won 2-0 | +181515 |
| top | average opponent: 1579record: 5-3 | new rating: 1515 | ||
| Grand Prix Lyon 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Haberkorn, Pascal (1621) | Lost 0-2 | -161484 |
| 2sealed | 407 | Hoffmann, Aurelien (1482) | Draw 1-1 | 01484 |
| 3sealed | 389 | Richy, Julien (1482) | Won 2-0 | +181502 |
| 4sealed | 301 | Silva, Pedro (1588) | Lost 0-2 | -161486 |
| 5sealed | 360 | Gonthier-gillis, Bruno (1482) | Lost 0-2 | -181468 |
| top | average opponent: 1531record: 1-3-1 | new rating: 1468 | ||