Marechal, David
Current rating: 1574
Record: 24-20
| Grand Prix Paris 2014 (legacy) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 552 | Krall, Stefan (1710) | Lost 1-2 | -161557 |
| 4legacy | 112 | Wilmotte, Sebastien (1557) | Lost 1-2 | -181539 |
| 5legacy | 517 | Antoine, Raphael (1538) | Lost 0-2 | -181521 |
| 6legacy | 546 | Hric, Michal (1510) | Won 2-1 | +181539 |
| 7legacy | 421 | Morera, Danan (1509) | Won 2-1 | +181557 |
| 9legacy | 252 | Regnault, Benoit (1526) | Won 2-0 | +171574 |
| top | average opponent: 1558record: 3-3 | new rating: 1574 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 114 | Gilligan, Daniel (1609) | Won 2-0 | +191573 |
| 4modern | 96 | Kaschapow, Marcel (1651) | Lost 1-2 | -171556 |
| 5modern | 126 | Vidal, Victor (1533) | Lost 1-2 | -181538 |
| 6modern | 270 | Gagnepain, Jean Baptiste (1504) | Won 2-1 | +171555 |
| 7modern | 143 | Zebrowski, Marcin (1564) | Lost 0-2 | -181537 |
| 8modern | 266 | Mares, Jiri (1522) | Won 2-0 | +181555 |
| 9modern | 194 | Widor, Slawomir (1541) | Won 2-0 | +181573 |
| top | average opponent: 1561record: 4-3 | new rating: 1573 | ||
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 33 | Baldan, Riccardo (1640) | Won 2-0 | +191589 |
| 4standard | 177 | Benca, Lucian-Cristian (1540) | Won 2-1 | +181607 |
| 5standard | 62 | Valkeneers, Tom (1750) | Lost 1-2 | -161591 |
| 6standard | 117 | Laguerre, Mathieu (1582) | Lost 0-2 | -181573 |
| 7standard | 197 | Saracino, Alessandro (1512) | Lost 0-2 | -191554 |
| top | average opponent: 1605record: 2-3 | new rating: 1554 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 396 | Perotti, Efrem (1573) | Won 2-0 | +191590 |
| 3modern | 132 | Bohnstedt, Lutz (1446) | Lost 1-2 | -211569 |
| 4modern | 307 | Kauerauf, Pascal (1520) | Won 2-0 | +171586 |
| 5modern | 149 | Van Nieuwenhove, Jan (1716) | Lost 0-2 | -161570 |
| 6modern | 408 | Overgaauw, Rens (1499) | Won 2-0 | +171587 |
| 7modern | 173 | Sochurek, Petr (1687) | Lost 1-2 | -161571 |
| 8modern | 323 | Balslev, Halfdan (1517) | Won 2-0 | +171588 |
| 9modern | 237 | Verougstraete, Bjorn (1605) | Lost 0-2 | -181570 |
| top | average opponent: 1570record: 4-4 | new rating: 1570 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 175 | Perz, Florian (1350) | Lost 1-2 | -211497 |
| 2sealed | 376 | Vidal, Andreu (1482) | Won 2-0 | +181515 |
| 3sealed | 509 | Szewczyk, Michal (1525) | Won 2-0 | +181533 |
| 4sealed | 471 | Taus, Jakub (1518) | Won 2-1 | +181551 |
| 5sealed | 212 | Winkler, Eric (1550) | Won 2-0 | +181569 |
| 6sealed | 214 | Lange, Holger (1624) | Won 2-0 | +191588 |
| 7sealed | 114 | Papez, Daniel (1572) | Lost 0-2 | -191569 |
| 8sealed | 189 | Krieger, Philipp (1602) | Lost 1-2 | -171552 |
| 9sealed | 213 | Calas, David (1632) | Won 2-1 | +191571 |
| top | average opponent: 1539record: 6-3 | new rating: 1571 | ||
| Grand Prix Strasbourg 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 175 | Rau, Simon (1411) | Lost 0-2 | -201480 |
| 2block | 211 | VACHE, BENOIT (1482) | Lost 0-2 | -181462 |
| 3block | 242 | Guignard, Maxime (1499) | Lost 1-2 | -171445 |
| 4block | 263 | Ancelot, Schmid (1447) | Won 2-0 | +181463 |
| 5block | 249 | Chassot, Philippe (1481) | Lost 1-2 | -181445 |
| 6block | 233 | Roth, Raphael (1444) | Won 2-1 | +181463 |
| 7block | 179 | Muszumanski, Remi (1469) | Won 2-0 | +191482 |
| 8block | 145 | Epp, Ivan (1482) | Won 2-0 | +181500 |
| 9block | 114 | Wissmann, Malte (1533) | Won 2-0 | +181518 |
| top | average opponent: 1472record: 5-4 | new rating: 1518 | ||