Barthel, Constant
Current rating: 1368
| Grand Prix Prague 2016 (legacy) | starting rating: 1352 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 173 | Gilles, Maxime (1701) | Won 2-0 | +241376 |
| 2legacy | 2 | Hopponen, Juha (1445) | Lost 1-2 | -171359 |
| 3legacy | 554 | Bordac, Lukas (1450) | Won 2-1 | +201379 |
| 4legacy | 371 | Horvat, Vjeran (2117) | Won 2-1 | +291408 |
| 5legacy | 176 | Gutbrod, Johannes (1590) | Lost 0-2 | -151393 |
| 6legacy | 271 | Palmroth, Tony (1526) | Lost 1-2 | -151378 |
| 7legacy | 439 | Forslund, Fredrik (1564) | Lost 1-2 | -151363 |
| 8legacy | 468 | Feher, Attila (1509) | Lost 0-2 | -151348 |
| 9legacy | 435 | Smetana, Ondrej (1465) | Won 2-0 | +201368 |
| top | average opponent: 1596record: 4-5 | new rating: 1368 | ||
| Grand Prix Lille 2015 (legacy) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 142 | Caballero, Jonatan (1601) | Lost 0-2 | -151411 |
| 4legacy | 423 | Rodrigues, Thiago (1762) | Lost 0-2 | -121399 |
| 5legacy | 408 | Bittner, Jacques (1630) | Lost 0-2 | -141385 |
| 6legacy | 547 | Reuter, Andy (1462) | Lost 1-2 | -161369 |
| 7legacy | 451 | Candillier, Ludovic (1430) | Lost 0-2 | -171352 |
| top | average opponent: 1577record: 0-5 | new rating: 1352 | ||
| Grand Prix Paris 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 194 | Monarini, Matteo (1430) | Lost 0-2 | -191481 |
| 2legacy | 194 | Larde, Domice (1481) | Lost 1-2 | -181463 |
| 3legacy | 194 | Salmon, Adrien (1414) | Won 2-0 | +171480 |
| 4legacy | 194 | Romero, Toni (1478) | Lost 0-2 | -181462 |
| 5legacy | 194 | Pauchon, Jean-Christophe (1456) | Lost 1-2 | -181444 |
| 6legacy | 194 | Heibach, Johannes (1446) | Lost 0-2 | -181426 |
| top | average opponent: 1451record: 1-5 | new rating: 1426 | ||