Mercier, Johny
Current rating: 1451
Record: 3-6
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 872 | Maurin, Simon (1520) | Won 2-1 | +191503 |
| 2standard | 770 | Ortmann, Christoph (1561) | Lost 0-2 | -171486 |
| 3standard | 739 | Schuray, Alexander (1520) | Lost 0-2 | -181468 |
| 4standard | 892 | Gonzalez, Juan (1506) | Lost 0-2 | -171451 |
| average opponent: 1527record: 1-3 | new rating: 1451 | |||
| Grand Prix Brussels 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 59 | Gossiaux, Joachim (1500) | Lost 0-2 | -181482 |
| 2sealed | 276 | Boenigk, Volker (1484) | Won 2-0 | +181500 |
| 3sealed | 138 | Stals, Mark (1586) | Lost 0-2 | -161484 |
| 4sealed | 268 | Castermans, Nicky (1504) | Won 2-0 | +181502 |
| 5sealed | 171 | Paz, Gerardo A (1499) | Lost 0-2 | -181484 |
| average opponent: 1514record: 2-3 | new rating: 1484 | |||