Constant, Charles Won
Current rating: 1501
Record: 8-8
| Grand Prix Bologna 2019 (legacy) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 400 | Marin Vargas, Lucas (1551) | Lost 1-2 | -171484 |
| 2legacy | 536 | Reynaert, Michel (1420) | Lost 1-2 | -191465 |
| 3legacy | 716 | Donnini, Tommaso (1464) | Lost 0-2 | -181447 |
| 4legacy | 749 | Vanni, Alessandro (1445) | Won 2-1 | +181465 |
| 5legacy | 667 | Lepre, Emilio (1458) | Won 2-1 | +181483 |
| 6legacy | 525 | Venditti, Roberto (1450) | Lost 1-2 | -191464 |
| 7legacy | 510 | Blaso, Alex (1472) | Won 2-0 | +181482 |
| 8legacy | 382 | Pekala, Rafal (1523) | Won 2-0 | +191501 |
| average opponent: 1473record: 4-4 | new rating: 1501 | |||
| Grand Prix Birmingham 2018 (leg) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 229 | Evans, Rhys (1643) | Lost 1-2 | -151485 |
| 2legacy | 322 | Dewerchin, Loic (1426) | Lost 1-2 | -191466 |
| 3legacy | 515 | Blows, Aaron (1464) | Won 2-0 | +181484 |
| 4legacy | 397 | Andrew, Peter (1480) | Won 2-0 | +171501 |
| 5legacy | 315 | Hansson, Johan (1491) | Lost 0-2 | -181483 |
| 6legacy | 402 | Engeler, Marc (1454) | Won 2-0 | +181501 |
| 7legacy | 332 | Storm, Bengt-Morten (1499) | Won 2-1 | +181519 |
| 8legacy | 256 | Okada, Taro (1557) | Lost 1-2 | -181501 |
| average opponent: 1502record: 4-4 | new rating: 1501 | |||